[mirror_ubuntu-bionic-kernel.git] / drivers / net / usb / dm9601.c

/*
 * Davicom DM96xx USB 10/100Mbps ethernet devices
 *
 * Peter Korsgaard <jacmet@sunsite.dk>
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2.  This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

//#define DEBUG

#include <linux/module.h>
#include <linux/sched.h>
#include <linux/stddef.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/usb/usbnet.h>
#include <linux/slab.h>

/* datasheet:
 http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
*/

/* control requests */
#define DM_READ_REGS	0x00
#define DM_WRITE_REGS	0x01
#define DM_READ_MEMS	0x02
#define DM_WRITE_REG	0x03
#define DM_WRITE_MEMS	0x05
#define DM_WRITE_MEM	0x07

/* registers */
#define DM_NET_CTRL	0x00
#define DM_RX_CTRL	0x05
#define DM_SHARED_CTRL	0x0b
#define DM_SHARED_ADDR	0x0c
#define DM_SHARED_DATA	0x0d	/* low + high */
#define DM_PHY_ADDR	0x10	/* 6 bytes */
#define DM_MCAST_ADDR	0x16	/* 8 bytes */
#define DM_GPR_CTRL	0x1e
#define DM_GPR_DATA	0x1f
#define DM_CHIP_ID	0x2c
#define DM_MODE_CTRL	0x91	/* only on dm9620 */

/* chip id values */
#define ID_DM9601	0
#define ID_DM9620	1

#define DM_MAX_MCAST	64
#define DM_MCAST_SIZE	8
#define DM_EEPROM_LEN	256
#define DM_TX_OVERHEAD	2	/* 2 byte header */
#define DM_RX_OVERHEAD	7	/* 3 byte header + 4 byte crc tail */
#define DM_TIMEOUT	1000

static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
{
	int err;
	err = usbnet_read_cmd(dev, DM_READ_REGS,
			       USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			       0, reg, data, length);
	if(err != length && err >= 0)
		err = -EINVAL;
	return err;
}

static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
{
	return dm_read(dev, reg, 1, value);
}

static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
{
	int err;
	err = usbnet_write_cmd(dev, DM_WRITE_REGS,
				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
				0, reg, data, length);

	if (err >= 0 && err < length)
		err = -EINVAL;
	return err;
}

static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
{
	return usbnet_write_cmd(dev, DM_WRITE_REG,
				USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
				value, reg, NULL, 0);
}

static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
{
	usbnet_write_cmd_async(dev, DM_WRITE_REGS,
			       USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			       0, reg, data, length);
}

static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
{
	usbnet_write_cmd_async(dev, DM_WRITE_REG,
			       USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
			       value, reg, NULL, 0);
}

static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value)
{
	int ret, i;

	mutex_lock(&dev->phy_mutex);

	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);

	for (i = 0; i < DM_TIMEOUT; i++) {
		u8 tmp = 0;

		udelay(1);
		ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
		if (ret < 0)
			goto out;

		/* ready */
		if ((tmp & 1) == 0)
			break;
	}

	if (i == DM_TIMEOUT) {
		netdev_err(dev->net, "%s read timed out!\n", phy ? "phy" : "eeprom");
		ret = -EIO;
		goto out;
	}

	dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
	ret = dm_read(dev, DM_SHARED_DATA, 2, value);

	netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n",
		   phy, reg, *value, ret);

 out:
	mutex_unlock(&dev->phy_mutex);
	return ret;
}

static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value)
{
	int ret, i;

	mutex_lock(&dev->phy_mutex);

	ret = dm_write(dev, DM_SHARED_DATA, 2, &value);
	if (ret < 0)
		goto out;

	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1a : 0x12);

	for (i = 0; i < DM_TIMEOUT; i++) {
		u8 tmp = 0;

		udelay(1);
		ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
		if (ret < 0)
			goto out;

		/* ready */
		if ((tmp & 1) == 0)
			break;
	}

	if (i == DM_TIMEOUT) {
		netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom");
		ret = -EIO;
		goto out;
	}

	dm_write_reg(dev, DM_SHARED_CTRL, 0x0);

out:
	mutex_unlock(&dev->phy_mutex);
	return ret;
}

static int dm_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
{
	return dm_read_shared_word(dev, 0, offset, value);
}


static int dm9601_get_eeprom_len(struct net_device *dev)
{
	return DM_EEPROM_LEN;
}

static int dm9601_get_eeprom(struct net_device *net,
			     struct ethtool_eeprom *eeprom, u8 * data)
{
	struct usbnet *dev = netdev_priv(net);
	__le16 *ebuf = (__le16 *) data;
	int i;

	/* access is 16bit */
	if ((eeprom->offset % 2) || (eeprom->len % 2))
		return -EINVAL;

	for (i = 0; i < eeprom->len / 2; i++) {
		if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i,
					&ebuf[i]) < 0)
			return -EINVAL;
	}
	return 0;
}

static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc)
{
	struct usbnet *dev = netdev_priv(netdev);

	__le16 res;

	if (phy_id) {
		netdev_dbg(dev->net, "Only internal phy supported\n");
		return 0;
	}

	dm_read_shared_word(dev, 1, loc, &res);

	netdev_dbg(dev->net,
		   "dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
		   phy_id, loc, le16_to_cpu(res));

	return le16_to_cpu(res);
}

static void dm9601_mdio_write(struct net_device *netdev, int phy_id, int loc,
			      int val)
{
	struct usbnet *dev = netdev_priv(netdev);
	__le16 res = cpu_to_le16(val);

	if (phy_id) {
		netdev_dbg(dev->net, "Only internal phy supported\n");
		return;
	}

	netdev_dbg(dev->net, "dm9601_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
		   phy_id, loc, val);

	dm_write_shared_word(dev, 1, loc, res);
}

static void dm9601_get_drvinfo(struct net_device *net,
			       struct ethtool_drvinfo *info)
{
	/* Inherit standard device info */
	usbnet_get_drvinfo(net, info);
}

static u32 dm9601_get_link(struct net_device *net)
{
	struct usbnet *dev = netdev_priv(net);

	return mii_link_ok(&dev->mii);
}

static int dm9601_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 dm9601_ethtool_ops = {
	.get_drvinfo	= dm9601_get_drvinfo,
	.get_link	= dm9601_get_link,
	.get_msglevel	= usbnet_get_msglevel,
	.set_msglevel	= usbnet_set_msglevel,
	.get_eeprom_len	= dm9601_get_eeprom_len,
	.get_eeprom	= dm9601_get_eeprom,
	.nway_reset	= usbnet_nway_reset,
	.get_link_ksettings	= usbnet_get_link_ksettings,
	.set_link_ksettings	= usbnet_set_link_ksettings,
};

static void dm9601_set_multicast(struct net_device *net)
{
	struct usbnet *dev = netdev_priv(net);
	/* We use the 20 byte dev->data for our 8 byte filter buffer
	 * to avoid allocating memory that is tricky to free later */
	u8 *hashes = (u8 *) & dev->data;
	u8 rx_ctl = 0x31;

	memset(hashes, 0x00, DM_MCAST_SIZE);
	hashes[DM_MCAST_SIZE - 1] |= 0x80;	/* broadcast address */

	if (net->flags & IFF_PROMISC) {
		rx_ctl |= 0x02;
	} else if (net->flags & IFF_ALLMULTI ||
		   netdev_mc_count(net) > DM_MAX_MCAST) {
		rx_ctl |= 0x08;
	} else if (!netdev_mc_empty(net)) {
		struct netdev_hw_addr *ha;

		netdev_for_each_mc_addr(ha, net) {
			u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26;
			hashes[crc >> 3] |= 1 << (crc & 0x7);
		}
	}

	dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes);
	dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
}

static void __dm9601_set_mac_address(struct usbnet *dev)
{
	dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
}

static int dm9601_set_mac_address(struct net_device *net, void *p)
{
	struct sockaddr *addr = p;
	struct usbnet *dev = netdev_priv(net);

	if (!is_valid_ether_addr(addr->sa_data)) {
		dev_err(&net->dev, "not setting invalid mac address %pM\n",
								addr->sa_data);
		return -EINVAL;
	}

	memcpy(net->dev_addr, addr->sa_data, net->addr_len);
	__dm9601_set_mac_address(dev);

	return 0;
}

static const struct net_device_ops dm9601_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		= usbnet_change_mtu,
	.ndo_get_stats64	= usbnet_get_stats64,
	.ndo_validate_addr	= eth_validate_addr,
	.ndo_do_ioctl 		= dm9601_ioctl,
	.ndo_set_rx_mode	= dm9601_set_multicast,
	.ndo_set_mac_address	= dm9601_set_mac_address,
};

static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
{
	int ret;
	u8 mac[ETH_ALEN], id;

	ret = usbnet_get_endpoints(dev, intf);
	if (ret)
		goto out;

	dev->net->netdev_ops = &dm9601_netdev_ops;
	dev->net->ethtool_ops = &dm9601_ethtool_ops;
	dev->net->hard_header_len += DM_TX_OVERHEAD;
	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;

	/* dm9620/21a require room for 4 byte padding, even in dm9601
	 * mode, so we need +1 to be able to receive full size
	 * ethernet frames.
	 */
	dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD + 1;

	dev->mii.dev = dev->net;
	dev->mii.mdio_read = dm9601_mdio_read;
	dev->mii.mdio_write = dm9601_mdio_write;
	dev->mii.phy_id_mask = 0x1f;
	dev->mii.reg_num_mask = 0x1f;

	/* reset */
	dm_write_reg(dev, DM_NET_CTRL, 1);
	udelay(20);

	/* read MAC */
	if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) {
		printk(KERN_ERR "Error reading MAC address\n");
		ret = -ENODEV;
		goto out;
	}

	/*
	 * Overwrite the auto-generated address only with good ones.
	 */
	if (is_valid_ether_addr(mac))
		memcpy(dev->net->dev_addr, mac, ETH_ALEN);
	else {
		printk(KERN_WARNING
			"dm9601: No valid MAC address in EEPROM, using %pM\n",
			dev->net->dev_addr);
		__dm9601_set_mac_address(dev);
	}

	if (dm_read_reg(dev, DM_CHIP_ID, &id) < 0) {
		netdev_err(dev->net, "Error reading chip ID\n");
		ret = -ENODEV;
		goto out;
	}

	/* put dm9620 devices in dm9601 mode */
	if (id == ID_DM9620) {
		u8 mode;

		if (dm_read_reg(dev, DM_MODE_CTRL, &mode) < 0) {
			netdev_err(dev->net, "Error reading MODE_CTRL\n");
			ret = -ENODEV;
			goto out;
		}
		dm_write_reg(dev, DM_MODE_CTRL, mode & 0x7f);
	}

	/* power up phy */
	dm_write_reg(dev, DM_GPR_CTRL, 1);
	dm_write_reg(dev, DM_GPR_DATA, 0);

	/* receive broadcast packets */
	dm9601_set_multicast(dev->net);

	dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
	dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
			  ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
	mii_nway_restart(&dev->mii);

out:
	return ret;
}

static int dm9601_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
{
	u8 status;
	int len;

	/* format:
	   b1: rx status
	   b2: packet length (incl crc) low
	   b3: packet length (incl crc) high
	   b4..n-4: packet data
	   bn-3..bn: ethernet crc
	 */

	if (unlikely(skb->len < DM_RX_OVERHEAD)) {
		dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
		return 0;
	}

	status = skb->data[0];
	len = (skb->data[1] | (skb->data[2] << 8)) - 4;

	if (unlikely(status & 0xbf)) {
		if (status & 0x01) dev->net->stats.rx_fifo_errors++;
		if (status & 0x02) dev->net->stats.rx_crc_errors++;
		if (status & 0x04) dev->net->stats.rx_frame_errors++;
		if (status & 0x20) dev->net->stats.rx_missed_errors++;
		if (status & 0x90) dev->net->stats.rx_length_errors++;
		return 0;
	}

	skb_pull(skb, 3);
	skb_trim(skb, len);

	return 1;
}

static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
				       gfp_t flags)
{
	int len, pad;

	/* format:
	   b1: packet length low
	   b2: packet length high
	   b3..n: packet data
	*/

	len = skb->len + DM_TX_OVERHEAD;

	/* workaround for dm962x errata with tx fifo getting out of
	 * sync if a USB bulk transfer retry happens right after a
	 * packet with odd / maxpacket length by adding up to 3 bytes
	 * padding.
	 */
	while ((len & 1) || !(len % dev->maxpacket))
		len++;

	len -= DM_TX_OVERHEAD; /* hw header doesn't count as part of length */
	pad = len - skb->len;

	if (skb_headroom(skb) < DM_TX_OVERHEAD || skb_tailroom(skb) < pad) {
		struct sk_buff *skb2;

		skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, pad, flags);
		dev_kfree_skb_any(skb);
		skb = skb2;
		if (!skb)
			return NULL;
	}

	__skb_push(skb, DM_TX_OVERHEAD);

	if (pad) {
		memset(skb->data + skb->len, 0, pad);
		__skb_put(skb, pad);
	}

	skb->data[0] = len;
	skb->data[1] = len >> 8;

	return skb;
}

static void dm9601_status(struct usbnet *dev, struct urb *urb)
{
	int link;
	u8 *buf;

	/* format:
	   b0: net status
	   b1: tx status 1
	   b2: tx status 2
	   b3: rx status
	   b4: rx overflow
	   b5: rx count
	   b6: tx count
	   b7: gpr
	*/

	if (urb->actual_length < 8)
		return;

	buf = urb->transfer_buffer;

	link = !!(buf[0] & 0x40);
	if (netif_carrier_ok(dev->net) != link) {
		usbnet_link_change(dev, link, 1);
		netdev_dbg(dev->net, "Link Status is: %d\n", link);
	}
}

static int dm9601_link_reset(struct usbnet *dev)
{
	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };

	mii_check_media(&dev->mii, 1, 1);
	mii_ethtool_gset(&dev->mii, &ecmd);

	netdev_dbg(dev->net, "link_reset() speed: %u duplex: %d\n",
		   ethtool_cmd_speed(&ecmd), ecmd.duplex);

	return 0;
}

static const struct driver_info dm9601_info = {
	.description	= "Davicom DM96xx USB 10/100 Ethernet",
	.flags		= FLAG_ETHER | FLAG_LINK_INTR,
	.bind		= dm9601_bind,
	.rx_fixup	= dm9601_rx_fixup,
	.tx_fixup	= dm9601_tx_fixup,
	.status		= dm9601_status,
	.link_reset	= dm9601_link_reset,
	.reset		= dm9601_link_reset,
};

static const struct usb_device_id products[] = {
	{
	 USB_DEVICE(0x07aa, 0x9601),	/* Corega FEther USB-TXC */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x9601),	/* Davicom USB-100 */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x6688),	/* ZT6688 USB NIC */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x0268),	/* ShanTou ST268 USB NIC */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x8515),	/* ADMtek ADM8515 USB NIC */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	USB_DEVICE(0x0a47, 0x9601),	/* Hirose USB-100 */
	.driver_info = (unsigned long)&dm9601_info,
	 },
	{
	USB_DEVICE(0x0fe6, 0x8101),	/* DM9601 USB to Fast Ethernet Adapter */
	.driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0fe6, 0x9700),	/* DM9601 USB to Fast Ethernet Adapter */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x9000),	/* DM9000E */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x9620),	/* DM9620 USB to Fast Ethernet Adapter */
	 .driver_info = (unsigned long)&dm9601_info,
	 },
	{
	 USB_DEVICE(0x0a46, 0x9621),	/* DM9621A USB to Fast Ethernet Adapter */
	 .driver_info = (unsigned long)&dm9601_info,
	},
	{
	 USB_DEVICE(0x0a46, 0x9622),	/* DM9622 USB to Fast Ethernet Adapter */
	 .driver_info = (unsigned long)&dm9601_info,
	},
	{
	 USB_DEVICE(0x0a46, 0x0269),	/* DM962OA USB to Fast Ethernet Adapter */
	 .driver_info = (unsigned long)&dm9601_info,
	},
	{
	 USB_DEVICE(0x0a46, 0x1269),	/* DM9621A USB to Fast Ethernet Adapter */
	 .driver_info = (unsigned long)&dm9601_info,
	},
	{},			// END
};

MODULE_DEVICE_TABLE(usb, products);

static struct usb_driver dm9601_driver = {
	.name = "dm9601",
	.id_table = products,
	.probe = usbnet_probe,
	.disconnect = usbnet_disconnect,
	.suspend = usbnet_suspend,
	.resume = usbnet_resume,
	.disable_hub_initiated_lpm = 1,
};

module_usb_driver(dm9601_driver);

MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>");
MODULE_DESCRIPTION("Davicom DM96xx USB 10/100 ethernet devices");
MODULE_LICENSE("GPL");
Commit	Line	Data
d0374f4f	1	/*
cabd0e3a	2	* Davicom DM96xx USB 10/100Mbps ethernet devices
d0374f4f PK	3	*
	4	* Peter Korsgaard <jacmet@sunsite.dk>
	5	*
	6	* This file is licensed under the terms of the GNU General Public License
	7	* version 2. This program is licensed "as is" without any warranty of any
	8	* kind, whether express or implied.
	9	*/
	10
	11	//#define DEBUG
	12
	13	#include <linux/module.h>
	14	#include <linux/sched.h>
686149f4	15	#include <linux/stddef.h>
d0374f4f PK	16	#include <linux/netdevice.h>
	17	#include <linux/etherdevice.h>
	18	#include <linux/ethtool.h>
	19	#include <linux/mii.h>
	20	#include <linux/usb.h>
	21	#include <linux/crc32.h>
3692e94f	22	#include <linux/usb/usbnet.h>
5a0e3ad6	23	#include <linux/slab.h>
d0374f4f PK	24
d0374f4f PK	25	/* datasheet:
98658bc9	26	http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
d0374f4f PK	27	*/
	28
	29	/* control requests */
	30	#define DM_READ_REGS 0x00
	31	#define DM_WRITE_REGS 0x01
	32	#define DM_READ_MEMS 0x02
	33	#define DM_WRITE_REG 0x03
	34	#define DM_WRITE_MEMS 0x05
	35	#define DM_WRITE_MEM 0x07
	36
	37	/* registers */
	38	#define DM_NET_CTRL 0x00
	39	#define DM_RX_CTRL 0x05
	40	#define DM_SHARED_CTRL 0x0b
	41	#define DM_SHARED_ADDR 0x0c
	42	#define DM_SHARED_DATA 0x0d /* low + high */
	43	#define DM_PHY_ADDR 0x10 /* 6 bytes */
	44	#define DM_MCAST_ADDR 0x16 /* 8 bytes */
	45	#define DM_GPR_CTRL 0x1e
	46	#define DM_GPR_DATA 0x1f
6642f91c PK	47	#define DM_CHIP_ID 0x2c
	48	#define DM_MODE_CTRL 0x91 /* only on dm9620 */
	49
	50	/* chip id values */
	51	#define ID_DM9601 0
	52	#define ID_DM9620 1
d0374f4f PK	53
	54	#define DM_MAX_MCAST 64
	55	#define DM_MCAST_SIZE 8
	56	#define DM_EEPROM_LEN 256
	57	#define DM_TX_OVERHEAD 2 /* 2 byte header */
	58	#define DM_RX_OVERHEAD 7 /* 3 byte header + 4 byte crc tail */
	59	#define DM_TIMEOUT 1000
	60
d0374f4f PK	61	static int dm_read(struct usbnet dev, u8 reg, u16 length, void data)
d0374f4f PK	62	{
24b1042c ML	63	int err;
	64	err = usbnet_read_cmd(dev, DM_READ_REGS,
	65	USB_DIR_IN \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	66	0, reg, data, length);
	67	if(err != length && err >= 0)
16d78bc2	68	err = -EINVAL;
16d78bc2	69	return err;
d0374f4f PK	70	}
	71
	72	static int dm_read_reg(struct usbnet dev, u8 reg, u8 value)
	73	{
	74	return dm_read(dev, reg, 1, value);
	75	}
	76
	77	static int dm_write(struct usbnet dev, u8 reg, u16 length, void data)
	78	{
24b1042c ML	79	int err;
	80	err = usbnet_write_cmd(dev, DM_WRITE_REGS,
	81	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	82	0, reg, data, length);
	83
16d78bc2 PK	84	if (err >= 0 && err < length)
16d78bc2 PK	85	err = -EINVAL;
16d78bc2	86	return err;
d0374f4f PK	87	}
	88
	89	static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
	90	{
1b9c3a1b	91	return usbnet_write_cmd(dev, DM_WRITE_REG,
24b1042c ML	92	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
24b1042c ML	93	value, reg, NULL, 0);
d0374f4f PK	94	}
d0374f4f PK	95
1b9c3a1b	96	static void dm_write_async(struct usbnet dev, u8 reg, u16 length, void data)
d0374f4f	97	{
24b1042c ML	98	usbnet_write_cmd_async(dev, DM_WRITE_REGS,
24b1042c ML	99	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
1b9c3a1b	100	0, reg, data, length);
ba734f34 PK	101	}
	102
	103	static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
	104	{
1b9c3a1b TB	105	usbnet_write_cmd_async(dev, DM_WRITE_REG,
	106	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_DEVICE,
	107	value, reg, NULL, 0);
d0374f4f PK	108	}
d0374f4f PK	109
eca1ad82	110	static int dm_read_shared_word(struct usbnet dev, int phy, u8 reg, __le16 value)
d0374f4f PK	111	{
	112	int ret, i;
	113
	114	mutex_lock(&dev->phy_mutex);
	115
	116	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg \| 0x40) : reg);
	117	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);
	118
	119	for (i = 0; i < DM_TIMEOUT; i++) {
15c8bb12	120	u8 tmp = 0;
d0374f4f PK	121
	122	udelay(1);
	123	ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
	124	if (ret < 0)
	125	goto out;
	126
	127	/* ready */
	128	if ((tmp & 1) == 0)
	129	break;
	130	}
	131
	132	if (i == DM_TIMEOUT) {
60b86755	133	netdev_err(dev->net, "%s read timed out!\n", phy ? "phy" : "eeprom");
d0374f4f PK	134	ret = -EIO;
	135	goto out;
	136	}
	137
	138	dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
	139	ret = dm_read(dev, DM_SHARED_DATA, 2, value);
	140
60b86755 JP	141	netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n",
60b86755 JP	142	phy, reg, *value, ret);
d0374f4f PK	143
	144	out:
	145	mutex_unlock(&dev->phy_mutex);
	146	return ret;
	147	}
	148
eca1ad82	149	static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value)
d0374f4f PK	150	{
	151	int ret, i;
	152
	153	mutex_lock(&dev->phy_mutex);
	154
	155	ret = dm_write(dev, DM_SHARED_DATA, 2, &value);
	156	if (ret < 0)
	157	goto out;
	158
	159	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg \| 0x40) : reg);
e9162ab1	160	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1a : 0x12);
d0374f4f PK	161
d0374f4f PK	162	for (i = 0; i < DM_TIMEOUT; i++) {
15c8bb12	163	u8 tmp = 0;
d0374f4f PK	164
	165	udelay(1);
	166	ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
	167	if (ret < 0)
	168	goto out;
	169
	170	/* ready */
	171	if ((tmp & 1) == 0)
	172	break;
	173	}
	174
	175	if (i == DM_TIMEOUT) {
60b86755	176	netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom");
d0374f4f PK	177	ret = -EIO;
	178	goto out;
	179	}
	180
	181	dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
	182
	183	out:
	184	mutex_unlock(&dev->phy_mutex);
	185	return ret;
	186	}
	187
	188	static int dm_read_eeprom_word(struct usbnet dev, u8 offset, void value)
	189	{
	190	return dm_read_shared_word(dev, 0, offset, value);
	191	}
	192
	193
	194
	195	static int dm9601_get_eeprom_len(struct net_device *dev)
	196	{
	197	return DM_EEPROM_LEN;
	198	}
	199
	200	static int dm9601_get_eeprom(struct net_device *net,
	201	struct ethtool_eeprom eeprom, u8 data)
	202	{
	203	struct usbnet *dev = netdev_priv(net);
eca1ad82	204	__le16 ebuf = (__le16 ) data;
d0374f4f PK	205	int i;
	206
	207	/* access is 16bit */
	208	if ((eeprom->offset % 2) \|\| (eeprom->len % 2))
	209	return -EINVAL;
	210
	211	for (i = 0; i < eeprom->len / 2; i++) {
	212	if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i,
	213	&ebuf[i]) < 0)
	214	return -EINVAL;
	215	}
	216	return 0;
	217	}
	218
	219	static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc)
	220	{
	221	struct usbnet *dev = netdev_priv(netdev);
	222
eca1ad82	223	__le16 res;
d0374f4f PK	224
d0374f4f PK	225	if (phy_id) {
60b86755	226	netdev_dbg(dev->net, "Only internal phy supported\n");
d0374f4f PK	227	return 0;
	228	}
	229
	230	dm_read_shared_word(dev, 1, loc, &res);
	231
60b86755 JP	232	netdev_dbg(dev->net,
	233	"dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
	234	phy_id, loc, le16_to_cpu(res));
d0374f4f PK	235
	236	return le16_to_cpu(res);
	237	}
	238
	239	static void dm9601_mdio_write(struct net_device *netdev, int phy_id, int loc,
	240	int val)
	241	{
	242	struct usbnet *dev = netdev_priv(netdev);
eca1ad82	243	__le16 res = cpu_to_le16(val);
d0374f4f PK	244
d0374f4f PK	245	if (phy_id) {
60b86755	246	netdev_dbg(dev->net, "Only internal phy supported\n");
d0374f4f PK	247	return;
	248	}
	249
60b86755 JP	250	netdev_dbg(dev->net, "dm9601_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
60b86755 JP	251	phy_id, loc, val);
d0374f4f PK	252
	253	dm_write_shared_word(dev, 1, loc, res);
	254	}
	255
	256	static void dm9601_get_drvinfo(struct net_device *net,
	257	struct ethtool_drvinfo *info)
	258	{
	259	/* Inherit standard device info */
	260	usbnet_get_drvinfo(net, info);
d0374f4f PK	261	}
	262
	263	static u32 dm9601_get_link(struct net_device *net)
	264	{
	265	struct usbnet *dev = netdev_priv(net);
	266
	267	return mii_link_ok(&dev->mii);
	268	}
	269
	270	static int dm9601_ioctl(struct net_device net, struct ifreq rq, int cmd)
	271	{
	272	struct usbnet *dev = netdev_priv(net);
	273
	274	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
	275	}
	276
0fc0b732	277	static const struct ethtool_ops dm9601_ethtool_ops = {
d0374f4f PK	278	.get_drvinfo = dm9601_get_drvinfo,
	279	.get_link = dm9601_get_link,
	280	.get_msglevel = usbnet_get_msglevel,
	281	.set_msglevel = usbnet_set_msglevel,
	282	.get_eeprom_len = dm9601_get_eeprom_len,
	283	.get_eeprom = dm9601_get_eeprom,
d0374f4f	284	.nway_reset = usbnet_nway_reset,
bcb58f77 PR	285	.get_link_ksettings = usbnet_get_link_ksettings,
bcb58f77 PR	286	.set_link_ksettings = usbnet_set_link_ksettings,
d0374f4f PK	287	};
	288
	289	static void dm9601_set_multicast(struct net_device *net)
	290	{
	291	struct usbnet *dev = netdev_priv(net);
	292	/* We use the 20 byte dev->data for our 8 byte filter buffer
	293	* to avoid allocating memory that is tricky to free later */
	294	u8 hashes = (u8 ) & dev->data;
33eddedb	295	u8 rx_ctl = 0x31;
d0374f4f PK	296
	297	memset(hashes, 0x00, DM_MCAST_SIZE);
	298	hashes[DM_MCAST_SIZE - 1] \|= 0x80; /* broadcast address */
	299
	300	if (net->flags & IFF_PROMISC) {
	301	rx_ctl \|= 0x02;
2cc04d27 JP	302	} else if (net->flags & IFF_ALLMULTI \|\|
2cc04d27 JP	303	netdev_mc_count(net) > DM_MAX_MCAST) {
bf0ea638	304	rx_ctl \|= 0x08;
2cc04d27	305	} else if (!netdev_mc_empty(net)) {
22bedad3	306	struct netdev_hw_addr *ha;
d0374f4f	307
22bedad3 JP	308	netdev_for_each_mc_addr(ha, net) {
22bedad3 JP	309	u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26;
d0374f4f PK	310	hashes[crc >> 3] \|= 1 << (crc & 0x7);
	311	}
	312	}
	313
	314	dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes);
	315	dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
	316	}
	317
4b9f8ec6 WF	318	static void __dm9601_set_mac_address(struct usbnet *dev)
	319	{
	320	dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
	321	}
	322
753dcfee PK	323	static int dm9601_set_mac_address(struct net_device net, void p)
	324	{
	325	struct sockaddr *addr = p;
	326	struct usbnet *dev = netdev_priv(net);
	327
f52deb0e WF	328	if (!is_valid_ether_addr(addr->sa_data)) {
	329	dev_err(&net->dev, "not setting invalid mac address %pM\n",
	330	addr->sa_data);
753dcfee	331	return -EINVAL;
f52deb0e	332	}
753dcfee PK	333
753dcfee PK	334	memcpy(net->dev_addr, addr->sa_data, net->addr_len);
4b9f8ec6	335	__dm9601_set_mac_address(dev);
753dcfee PK	336
	337	return 0;
	338	}
	339
fe85ff82 SH	340	static const struct net_device_ops dm9601_netdev_ops = {
	341	.ndo_open = usbnet_open,
	342	.ndo_stop = usbnet_stop,
	343	.ndo_start_xmit = usbnet_start_xmit,
	344	.ndo_tx_timeout = usbnet_tx_timeout,
	345	.ndo_change_mtu = usbnet_change_mtu,
c8b5d129	346	.ndo_get_stats64 = usbnet_get_stats64,
fe85ff82 SH	347	.ndo_validate_addr = eth_validate_addr,
fe85ff82 SH	348	.ndo_do_ioctl = dm9601_ioctl,
afc4b13d	349	.ndo_set_rx_mode = dm9601_set_multicast,
fe85ff82 SH	350	.ndo_set_mac_address = dm9601_set_mac_address,
	351	};
	352
d0374f4f PK	353	static int dm9601_bind(struct usbnet dev, struct usb_interface intf)
	354	{
	355	int ret;
6642f91c	356	u8 mac[ETH_ALEN], id;
d0374f4f PK	357
	358	ret = usbnet_get_endpoints(dev, intf);
	359	if (ret)
	360	goto out;
	361
fe85ff82	362	dev->net->netdev_ops = &dm9601_netdev_ops;
d0374f4f PK	363	dev->net->ethtool_ops = &dm9601_ethtool_ops;
	364	dev->net->hard_header_len += DM_TX_OVERHEAD;
	365	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
407900cf PK	366
	367	/* dm9620/21a require room for 4 byte padding, even in dm9601
	368	* mode, so we need +1 to be able to receive full size
	369	* ethernet frames.
	370	*/
	371	dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD + 1;
d0374f4f PK	372
	373	dev->mii.dev = dev->net;
	374	dev->mii.mdio_read = dm9601_mdio_read;
	375	dev->mii.mdio_write = dm9601_mdio_write;
	376	dev->mii.phy_id_mask = 0x1f;
	377	dev->mii.reg_num_mask = 0x1f;
	378
	379	/* reset */
b8f59586	380	dm_write_reg(dev, DM_NET_CTRL, 1);
d0374f4f PK	381	udelay(20);
	382
	383	/* read MAC */
20f10aa0	384	if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) {
d0374f4f PK	385	printk(KERN_ERR "Error reading MAC address\n");
	386	ret = -ENODEV;
	387	goto out;
	388	}
	389
20f10aa0 WF	390	/*
	391	* Overwrite the auto-generated address only with good ones.
	392	*/
	393	if (is_valid_ether_addr(mac))
	394	memcpy(dev->net->dev_addr, mac, ETH_ALEN);
f52deb0e WF	395	else {
	396	printk(KERN_WARNING
	397	"dm9601: No valid MAC address in EEPROM, using %pM\n",
	398	dev->net->dev_addr);
4b9f8ec6	399	__dm9601_set_mac_address(dev);
f52deb0e	400	}
20f10aa0	401
6642f91c PK	402	if (dm_read_reg(dev, DM_CHIP_ID, &id) < 0) {
	403	netdev_err(dev->net, "Error reading chip ID\n");
	404	ret = -ENODEV;
	405	goto out;
	406	}
	407
	408	/* put dm9620 devices in dm9601 mode */
	409	if (id == ID_DM9620) {
	410	u8 mode;
	411
	412	if (dm_read_reg(dev, DM_MODE_CTRL, &mode) < 0) {
	413	netdev_err(dev->net, "Error reading MODE_CTRL\n");
	414	ret = -ENODEV;
	415	goto out;
	416	}
	417	dm_write_reg(dev, DM_MODE_CTRL, mode & 0x7f);
	418	}
	419
d0374f4f PK	420	/* power up phy */
	421	dm_write_reg(dev, DM_GPR_CTRL, 1);
	422	dm_write_reg(dev, DM_GPR_DATA, 0);
	423
	424	/* receive broadcast packets */
	425	dm9601_set_multicast(dev->net);
	426
	427	dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
	428	dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
	429	ADVERTISE_ALL \| ADVERTISE_CSMA \| ADVERTISE_PAUSE_CAP);
	430	mii_nway_restart(&dev->mii);
	431
	432	out:
	433	return ret;
	434	}
	435
	436	static int dm9601_rx_fixup(struct usbnet dev, struct sk_buff skb)
	437	{
	438	u8 status;
	439	int len;
	440
	441	/* format:
61189c78 PK	442	b1: rx status
	443	b2: packet length (incl crc) low
	444	b3: packet length (incl crc) high
	445	b4..n-4: packet data
d0374f4f PK	446	bn-3..bn: ethernet crc
	447	*/
	448
	449	if (unlikely(skb->len < DM_RX_OVERHEAD)) {
	450	dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
	451	return 0;
	452	}
	453
	454	status = skb->data[0];
	455	len = (skb->data[1] \| (skb->data[2] << 8)) - 4;
	456
	457	if (unlikely(status & 0xbf)) {
9612101c HX	458	if (status & 0x01) dev->net->stats.rx_fifo_errors++;
	459	if (status & 0x02) dev->net->stats.rx_crc_errors++;
	460	if (status & 0x04) dev->net->stats.rx_frame_errors++;
	461	if (status & 0x20) dev->net->stats.rx_missed_errors++;
	462	if (status & 0x90) dev->net->stats.rx_length_errors++;
d0374f4f PK	463	return 0;
	464	}
	465
	466	skb_pull(skb, 3);
	467	skb_trim(skb, len);
	468
	469	return 1;
	470	}
	471
	472	static struct sk_buff dm9601_tx_fixup(struct usbnet dev, struct sk_buff *skb,
	473	gfp_t flags)
	474	{
4263c86d	475	int len, pad;
d0374f4f PK	476
d0374f4f PK	477	/* format:
61189c78 PK	478	b1: packet length low
61189c78 PK	479	b2: packet length high
d0374f4f PK	480	b3..n: packet data
	481	*/
	482
4263c86d PK	483	len = skb->len + DM_TX_OVERHEAD;
	484
	485	/* workaround for dm962x errata with tx fifo getting out of
	486	* sync if a USB bulk transfer retry happens right after a
	487	* packet with odd / maxpacket length by adding up to 3 bytes
	488	* padding.
	489	*/
	490	while ((len & 1) \|\| !(len % dev->maxpacket))
	491	len++;
23de559b	492
4263c86d PK	493	len -= DM_TX_OVERHEAD; /* hw header doesn't count as part of length */
	494	pad = len - skb->len;
	495
	496	if (skb_headroom(skb) < DM_TX_OVERHEAD \|\| skb_tailroom(skb) < pad) {
d0374f4f PK	497	struct sk_buff *skb2;
d0374f4f PK	498
4263c86d	499	skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, pad, flags);
d0374f4f PK	500	dev_kfree_skb_any(skb);
	501	skb = skb2;
	502	if (!skb)
	503	return NULL;
	504	}
	505
	506	__skb_push(skb, DM_TX_OVERHEAD);
	507
4263c86d PK	508	if (pad) {
	509	memset(skb->data + skb->len, 0, pad);
	510	__skb_put(skb, pad);
	511	}
d0374f4f PK	512
	513	skb->data[0] = len;
	514	skb->data[1] = len >> 8;
	515
	516	return skb;
	517	}
	518
	519	static void dm9601_status(struct usbnet dev, struct urb urb)
	520	{
	521	int link;
	522	u8 *buf;
	523
	524	/* format:
	525	b0: net status
	526	b1: tx status 1
	527	b2: tx status 2
	528	b3: rx status
	529	b4: rx overflow
	530	b5: rx count
	531	b6: tx count
	532	b7: gpr
	533	*/
	534
	535	if (urb->actual_length < 8)
	536	return;
	537
	538	buf = urb->transfer_buffer;
	539
	540	link = !!(buf[0] & 0x40);
	541	if (netif_carrier_ok(dev->net) != link) {
c10b1710	542	usbnet_link_change(dev, link, 1);
60b86755	543	netdev_dbg(dev->net, "Link Status is: %d\n", link);
d0374f4f PK	544	}
	545	}
	546
	547	static int dm9601_link_reset(struct usbnet *dev)
	548	{
8ae6daca	549	struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
d0374f4f PK	550
	551	mii_check_media(&dev->mii, 1, 1);
	552	mii_ethtool_gset(&dev->mii, &ecmd);
	553
8ae6daca DD	554	netdev_dbg(dev->net, "link_reset() speed: %u duplex: %d\n",
8ae6daca DD	555	ethtool_cmd_speed(&ecmd), ecmd.duplex);
d0374f4f PK	556
	557	return 0;
	558	}
	559
	560	static const struct driver_info dm9601_info = {
cabd0e3a	561	.description = "Davicom DM96xx USB 10/100 Ethernet",
37e8273c	562	.flags = FLAG_ETHER \| FLAG_LINK_INTR,
d0374f4f PK	563	.bind = dm9601_bind,
	564	.rx_fixup = dm9601_rx_fixup,
	565	.tx_fixup = dm9601_tx_fixup,
	566	.status = dm9601_status,
	567	.link_reset = dm9601_link_reset,
	568	.reset = dm9601_link_reset,
	569	};
	570
	571	static const struct usb_device_id products[] = {
6438ac26 YH	572	{
	573	USB_DEVICE(0x07aa, 0x9601), /* Corega FEther USB-TXC */
	574	.driver_info = (unsigned long)&dm9601_info,
	575	},
d0374f4f PK	576	{
	577	USB_DEVICE(0x0a46, 0x9601), /* Davicom USB-100 */
	578	.driver_info = (unsigned long)&dm9601_info,
	579	},
6dc477f3 JD	580	{
	581	USB_DEVICE(0x0a46, 0x6688), /* ZT6688 USB NIC */
	582	.driver_info = (unsigned long)&dm9601_info,
	583	},
	584	{
	585	USB_DEVICE(0x0a46, 0x0268), /* ShanTou ST268 USB NIC */
	586	.driver_info = (unsigned long)&dm9601_info,
	587	},
a06da754 PK	588	{
	589	USB_DEVICE(0x0a46, 0x8515), /* ADMtek ADM8515 USB NIC */
	590	.driver_info = (unsigned long)&dm9601_info,
	591	},
b47b4b22 PK	592	{
b47b4b22 PK	593	USB_DEVICE(0x0a47, 0x9601), /* Hirose USB-100 */
a1a69c8d PK	594	.driver_info = (unsigned long)&dm9601_info,
	595	},
	596	{
	597	USB_DEVICE(0x0fe6, 0x8101), /* DM9601 USB to Fast Ethernet Adapter */
b47b4b22 PK	598	.driver_info = (unsigned long)&dm9601_info,
b47b4b22 PK	599	},
67158ceb SH	600	{
	601	USB_DEVICE(0x0fe6, 0x9700), /* DM9601 USB to Fast Ethernet Adapter */
	602	.driver_info = (unsigned long)&dm9601_info,
	603	},
06b71b65 JK	604	{
	605	USB_DEVICE(0x0a46, 0x9000), /* DM9000E */
	606	.driver_info = (unsigned long)&dm9601_info,
	607	},
6642f91c PK	608	{
	609	USB_DEVICE(0x0a46, 0x9620), /* DM9620 USB to Fast Ethernet Adapter */
	610	.driver_info = (unsigned long)&dm9601_info,
	611	},
3b387892 PK	612	{
	613	USB_DEVICE(0x0a46, 0x9621), /* DM9621A USB to Fast Ethernet Adapter */
	614	.driver_info = (unsigned long)&dm9601_info,
	615	},
7c4b5175 PK	616	{
	617	USB_DEVICE(0x0a46, 0x9622), /* DM9622 USB to Fast Ethernet Adapter */
	618	.driver_info = (unsigned long)&dm9601_info,
	619	},
	620	{
	621	USB_DEVICE(0x0a46, 0x0269), /* DM962OA USB to Fast Ethernet Adapter */
	622	.driver_info = (unsigned long)&dm9601_info,
	623	},
	624	{
	625	USB_DEVICE(0x0a46, 0x1269), /* DM9621A USB to Fast Ethernet Adapter */
	626	.driver_info = (unsigned long)&dm9601_info,
	627	},
d0374f4f PK	628	{}, // END
	629	};
	630
	631	MODULE_DEVICE_TABLE(usb, products);
	632
	633	static struct usb_driver dm9601_driver = {
	634	.name = "dm9601",
	635	.id_table = products,
	636	.probe = usbnet_probe,
	637	.disconnect = usbnet_disconnect,
	638	.suspend = usbnet_suspend,
	639	.resume = usbnet_resume,
e1f12eb6	640	.disable_hub_initiated_lpm = 1,
d0374f4f PK	641	};
d0374f4f PK	642
d632eb1b	643	module_usb_driver(dm9601_driver);
d0374f4f PK	644
d0374f4f PK	645	MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>");
cabd0e3a	646	MODULE_DESCRIPTION("Davicom DM96xx USB 10/100 ethernet devices");
d0374f4f	647	MODULE_LICENSE("GPL");