xref: /openbmc/linux/drivers/net/usb/dm9601.c (revision b6dcefde)
1 /*
2  * Davicom DM9601 USB 1.1 10/100Mbps ethernet devices
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>
15 #include <linux/stddef.h>
16 #include <linux/init.h>
17 #include <linux/netdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/ethtool.h>
20 #include <linux/mii.h>
21 #include <linux/usb.h>
22 #include <linux/crc32.h>
23 #include <linux/usb/usbnet.h>
24 
25 /* datasheet:
26  http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
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
47 
48 #define DM_MAX_MCAST	64
49 #define DM_MCAST_SIZE	8
50 #define DM_EEPROM_LEN	256
51 #define DM_TX_OVERHEAD	2	/* 2 byte header */
52 #define DM_RX_OVERHEAD	7	/* 3 byte header + 4 byte crc tail */
53 #define DM_TIMEOUT	1000
54 
55 
56 static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
57 {
58 	void *buf;
59 	int err = -ENOMEM;
60 
61 	devdbg(dev, "dm_read() reg=0x%02x length=%d", reg, length);
62 
63 	buf = kmalloc(length, GFP_KERNEL);
64 	if (!buf)
65 		goto out;
66 
67 	err = usb_control_msg(dev->udev,
68 			      usb_rcvctrlpipe(dev->udev, 0),
69 			      DM_READ_REGS,
70 			      USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
71 			      0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
72 	if (err == length)
73 		memcpy(data, buf, length);
74 	else if (err >= 0)
75 		err = -EINVAL;
76 	kfree(buf);
77 
78  out:
79 	return err;
80 }
81 
82 static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
83 {
84 	return dm_read(dev, reg, 1, value);
85 }
86 
87 static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
88 {
89 	void *buf = NULL;
90 	int err = -ENOMEM;
91 
92 	devdbg(dev, "dm_write() reg=0x%02x, length=%d", reg, length);
93 
94 	if (data) {
95 		buf = kmalloc(length, GFP_KERNEL);
96 		if (!buf)
97 			goto out;
98 		memcpy(buf, data, length);
99 	}
100 
101 	err = usb_control_msg(dev->udev,
102 			      usb_sndctrlpipe(dev->udev, 0),
103 			      DM_WRITE_REGS,
104 			      USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
105 			      0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
106 	kfree(buf);
107 	if (err >= 0 && err < length)
108 		err = -EINVAL;
109  out:
110 	return err;
111 }
112 
113 static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
114 {
115 	devdbg(dev, "dm_write_reg() reg=0x%02x, value=0x%02x", reg, value);
116 	return usb_control_msg(dev->udev,
117 			       usb_sndctrlpipe(dev->udev, 0),
118 			       DM_WRITE_REG,
119 			       USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
120 			       value, reg, NULL, 0, USB_CTRL_SET_TIMEOUT);
121 }
122 
123 static void dm_write_async_callback(struct urb *urb)
124 {
125 	struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
126 	int status = urb->status;
127 
128 	if (status < 0)
129 		printk(KERN_DEBUG "dm_write_async_callback() failed with %d\n",
130 		       status);
131 
132 	kfree(req);
133 	usb_free_urb(urb);
134 }
135 
136 static void dm_write_async_helper(struct usbnet *dev, u8 reg, u8 value,
137 				  u16 length, void *data)
138 {
139 	struct usb_ctrlrequest *req;
140 	struct urb *urb;
141 	int status;
142 
143 	urb = usb_alloc_urb(0, GFP_ATOMIC);
144 	if (!urb) {
145 		deverr(dev, "Error allocating URB in dm_write_async_helper!");
146 		return;
147 	}
148 
149 	req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
150 	if (!req) {
151 		deverr(dev, "Failed to allocate memory for control request");
152 		usb_free_urb(urb);
153 		return;
154 	}
155 
156 	req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
157 	req->bRequest = length ? DM_WRITE_REGS : DM_WRITE_REG;
158 	req->wValue = cpu_to_le16(value);
159 	req->wIndex = cpu_to_le16(reg);
160 	req->wLength = cpu_to_le16(length);
161 
162 	usb_fill_control_urb(urb, dev->udev,
163 			     usb_sndctrlpipe(dev->udev, 0),
164 			     (void *)req, data, length,
165 			     dm_write_async_callback, req);
166 
167 	status = usb_submit_urb(urb, GFP_ATOMIC);
168 	if (status < 0) {
169 		deverr(dev, "Error submitting the control message: status=%d",
170 		       status);
171 		kfree(req);
172 		usb_free_urb(urb);
173 	}
174 }
175 
176 static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
177 {
178 	devdbg(dev, "dm_write_async() reg=0x%02x length=%d", reg, length);
179 
180 	dm_write_async_helper(dev, reg, 0, length, data);
181 }
182 
183 static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
184 {
185 	devdbg(dev, "dm_write_reg_async() reg=0x%02x value=0x%02x",
186 	       reg, value);
187 
188 	dm_write_async_helper(dev, reg, value, 0, NULL);
189 }
190 
191 static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value)
192 {
193 	int ret, i;
194 
195 	mutex_lock(&dev->phy_mutex);
196 
197 	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
198 	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);
199 
200 	for (i = 0; i < DM_TIMEOUT; i++) {
201 		u8 tmp;
202 
203 		udelay(1);
204 		ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
205 		if (ret < 0)
206 			goto out;
207 
208 		/* ready */
209 		if ((tmp & 1) == 0)
210 			break;
211 	}
212 
213 	if (i == DM_TIMEOUT) {
214 		deverr(dev, "%s read timed out!", phy ? "phy" : "eeprom");
215 		ret = -EIO;
216 		goto out;
217 	}
218 
219 	dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
220 	ret = dm_read(dev, DM_SHARED_DATA, 2, value);
221 
222 	devdbg(dev, "read shared %d 0x%02x returned 0x%04x, %d",
223 	       phy, reg, *value, ret);
224 
225  out:
226 	mutex_unlock(&dev->phy_mutex);
227 	return ret;
228 }
229 
230 static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value)
231 {
232 	int ret, i;
233 
234 	mutex_lock(&dev->phy_mutex);
235 
236 	ret = dm_write(dev, DM_SHARED_DATA, 2, &value);
237 	if (ret < 0)
238 		goto out;
239 
240 	dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
241 	dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1c : 0x14);
242 
243 	for (i = 0; i < DM_TIMEOUT; i++) {
244 		u8 tmp;
245 
246 		udelay(1);
247 		ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
248 		if (ret < 0)
249 			goto out;
250 
251 		/* ready */
252 		if ((tmp & 1) == 0)
253 			break;
254 	}
255 
256 	if (i == DM_TIMEOUT) {
257 		deverr(dev, "%s write timed out!", phy ? "phy" : "eeprom");
258 		ret = -EIO;
259 		goto out;
260 	}
261 
262 	dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
263 
264 out:
265 	mutex_unlock(&dev->phy_mutex);
266 	return ret;
267 }
268 
269 static int dm_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
270 {
271 	return dm_read_shared_word(dev, 0, offset, value);
272 }
273 
274 
275 
276 static int dm9601_get_eeprom_len(struct net_device *dev)
277 {
278 	return DM_EEPROM_LEN;
279 }
280 
281 static int dm9601_get_eeprom(struct net_device *net,
282 			     struct ethtool_eeprom *eeprom, u8 * data)
283 {
284 	struct usbnet *dev = netdev_priv(net);
285 	__le16 *ebuf = (__le16 *) data;
286 	int i;
287 
288 	/* access is 16bit */
289 	if ((eeprom->offset % 2) || (eeprom->len % 2))
290 		return -EINVAL;
291 
292 	for (i = 0; i < eeprom->len / 2; i++) {
293 		if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i,
294 					&ebuf[i]) < 0)
295 			return -EINVAL;
296 	}
297 	return 0;
298 }
299 
300 static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc)
301 {
302 	struct usbnet *dev = netdev_priv(netdev);
303 
304 	__le16 res;
305 
306 	if (phy_id) {
307 		devdbg(dev, "Only internal phy supported");
308 		return 0;
309 	}
310 
311 	dm_read_shared_word(dev, 1, loc, &res);
312 
313 	devdbg(dev,
314 	       "dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x",
315 	       phy_id, loc, le16_to_cpu(res));
316 
317 	return le16_to_cpu(res);
318 }
319 
320 static void dm9601_mdio_write(struct net_device *netdev, int phy_id, int loc,
321 			      int val)
322 {
323 	struct usbnet *dev = netdev_priv(netdev);
324 	__le16 res = cpu_to_le16(val);
325 
326 	if (phy_id) {
327 		devdbg(dev, "Only internal phy supported");
328 		return;
329 	}
330 
331 	devdbg(dev,"dm9601_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x",
332 	       phy_id, loc, val);
333 
334 	dm_write_shared_word(dev, 1, loc, res);
335 }
336 
337 static void dm9601_get_drvinfo(struct net_device *net,
338 			       struct ethtool_drvinfo *info)
339 {
340 	/* Inherit standard device info */
341 	usbnet_get_drvinfo(net, info);
342 	info->eedump_len = DM_EEPROM_LEN;
343 }
344 
345 static u32 dm9601_get_link(struct net_device *net)
346 {
347 	struct usbnet *dev = netdev_priv(net);
348 
349 	return mii_link_ok(&dev->mii);
350 }
351 
352 static int dm9601_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
353 {
354 	struct usbnet *dev = netdev_priv(net);
355 
356 	return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
357 }
358 
359 static const struct ethtool_ops dm9601_ethtool_ops = {
360 	.get_drvinfo	= dm9601_get_drvinfo,
361 	.get_link	= dm9601_get_link,
362 	.get_msglevel	= usbnet_get_msglevel,
363 	.set_msglevel	= usbnet_set_msglevel,
364 	.get_eeprom_len	= dm9601_get_eeprom_len,
365 	.get_eeprom	= dm9601_get_eeprom,
366 	.get_settings	= usbnet_get_settings,
367 	.set_settings	= usbnet_set_settings,
368 	.nway_reset	= usbnet_nway_reset,
369 };
370 
371 static void dm9601_set_multicast(struct net_device *net)
372 {
373 	struct usbnet *dev = netdev_priv(net);
374 	/* We use the 20 byte dev->data for our 8 byte filter buffer
375 	 * to avoid allocating memory that is tricky to free later */
376 	u8 *hashes = (u8 *) & dev->data;
377 	u8 rx_ctl = 0x31;
378 
379 	memset(hashes, 0x00, DM_MCAST_SIZE);
380 	hashes[DM_MCAST_SIZE - 1] |= 0x80;	/* broadcast address */
381 
382 	if (net->flags & IFF_PROMISC) {
383 		rx_ctl |= 0x02;
384 	} else if (net->flags & IFF_ALLMULTI || net->mc_count > DM_MAX_MCAST) {
385 		rx_ctl |= 0x04;
386 	} else if (net->mc_count) {
387 		struct dev_mc_list *mc_list = net->mc_list;
388 		int i;
389 
390 		for (i = 0; i < net->mc_count; i++, mc_list = mc_list->next) {
391 			u32 crc = ether_crc(ETH_ALEN, mc_list->dmi_addr) >> 26;
392 			hashes[crc >> 3] |= 1 << (crc & 0x7);
393 		}
394 	}
395 
396 	dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes);
397 	dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
398 }
399 
400 static void __dm9601_set_mac_address(struct usbnet *dev)
401 {
402 	dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
403 }
404 
405 static int dm9601_set_mac_address(struct net_device *net, void *p)
406 {
407 	struct sockaddr *addr = p;
408 	struct usbnet *dev = netdev_priv(net);
409 
410 	if (!is_valid_ether_addr(addr->sa_data)) {
411 		dev_err(&net->dev, "not setting invalid mac address %pM\n",
412 								addr->sa_data);
413 		return -EINVAL;
414 	}
415 
416 	memcpy(net->dev_addr, addr->sa_data, net->addr_len);
417 	__dm9601_set_mac_address(dev);
418 
419 	return 0;
420 }
421 
422 static const struct net_device_ops dm9601_netdev_ops = {
423 	.ndo_open		= usbnet_open,
424 	.ndo_stop		= usbnet_stop,
425 	.ndo_start_xmit		= usbnet_start_xmit,
426 	.ndo_tx_timeout		= usbnet_tx_timeout,
427 	.ndo_change_mtu		= usbnet_change_mtu,
428 	.ndo_validate_addr	= eth_validate_addr,
429 	.ndo_do_ioctl 		= dm9601_ioctl,
430 	.ndo_set_multicast_list = dm9601_set_multicast,
431 	.ndo_set_mac_address	= dm9601_set_mac_address,
432 };
433 
434 static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
435 {
436 	int ret;
437 	u8 mac[ETH_ALEN];
438 
439 	ret = usbnet_get_endpoints(dev, intf);
440 	if (ret)
441 		goto out;
442 
443 	dev->net->netdev_ops = &dm9601_netdev_ops;
444 	dev->net->ethtool_ops = &dm9601_ethtool_ops;
445 	dev->net->hard_header_len += DM_TX_OVERHEAD;
446 	dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
447 	dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD;
448 
449 	dev->mii.dev = dev->net;
450 	dev->mii.mdio_read = dm9601_mdio_read;
451 	dev->mii.mdio_write = dm9601_mdio_write;
452 	dev->mii.phy_id_mask = 0x1f;
453 	dev->mii.reg_num_mask = 0x1f;
454 
455 	/* reset */
456 	dm_write_reg(dev, DM_NET_CTRL, 1);
457 	udelay(20);
458 
459 	/* read MAC */
460 	if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) {
461 		printk(KERN_ERR "Error reading MAC address\n");
462 		ret = -ENODEV;
463 		goto out;
464 	}
465 
466 	/*
467 	 * Overwrite the auto-generated address only with good ones.
468 	 */
469 	if (is_valid_ether_addr(mac))
470 		memcpy(dev->net->dev_addr, mac, ETH_ALEN);
471 	else {
472 		printk(KERN_WARNING
473 			"dm9601: No valid MAC address in EEPROM, using %pM\n",
474 			dev->net->dev_addr);
475 		__dm9601_set_mac_address(dev);
476 	}
477 
478 	/* power up phy */
479 	dm_write_reg(dev, DM_GPR_CTRL, 1);
480 	dm_write_reg(dev, DM_GPR_DATA, 0);
481 
482 	/* receive broadcast packets */
483 	dm9601_set_multicast(dev->net);
484 
485 	dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
486 	dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
487 			  ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
488 	mii_nway_restart(&dev->mii);
489 
490 out:
491 	return ret;
492 }
493 
494 static int dm9601_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
495 {
496 	u8 status;
497 	int len;
498 
499 	/* format:
500 	   b1: rx status
501 	   b2: packet length (incl crc) low
502 	   b3: packet length (incl crc) high
503 	   b4..n-4: packet data
504 	   bn-3..bn: ethernet crc
505 	 */
506 
507 	if (unlikely(skb->len < DM_RX_OVERHEAD)) {
508 		dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
509 		return 0;
510 	}
511 
512 	status = skb->data[0];
513 	len = (skb->data[1] | (skb->data[2] << 8)) - 4;
514 
515 	if (unlikely(status & 0xbf)) {
516 		if (status & 0x01) dev->net->stats.rx_fifo_errors++;
517 		if (status & 0x02) dev->net->stats.rx_crc_errors++;
518 		if (status & 0x04) dev->net->stats.rx_frame_errors++;
519 		if (status & 0x20) dev->net->stats.rx_missed_errors++;
520 		if (status & 0x90) dev->net->stats.rx_length_errors++;
521 		return 0;
522 	}
523 
524 	skb_pull(skb, 3);
525 	skb_trim(skb, len);
526 
527 	return 1;
528 }
529 
530 static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
531 				       gfp_t flags)
532 {
533 	int len;
534 
535 	/* format:
536 	   b1: packet length low
537 	   b2: packet length high
538 	   b3..n: packet data
539 	*/
540 
541 	len = skb->len;
542 
543 	if (skb_headroom(skb) < DM_TX_OVERHEAD) {
544 		struct sk_buff *skb2;
545 
546 		skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, 0, flags);
547 		dev_kfree_skb_any(skb);
548 		skb = skb2;
549 		if (!skb)
550 			return NULL;
551 	}
552 
553 	__skb_push(skb, DM_TX_OVERHEAD);
554 
555 	/* usbnet adds padding if length is a multiple of packet size
556 	   if so, adjust length value in header */
557 	if ((skb->len % dev->maxpacket) == 0)
558 		len++;
559 
560 	skb->data[0] = len;
561 	skb->data[1] = len >> 8;
562 
563 	return skb;
564 }
565 
566 static void dm9601_status(struct usbnet *dev, struct urb *urb)
567 {
568 	int link;
569 	u8 *buf;
570 
571 	/* format:
572 	   b0: net status
573 	   b1: tx status 1
574 	   b2: tx status 2
575 	   b3: rx status
576 	   b4: rx overflow
577 	   b5: rx count
578 	   b6: tx count
579 	   b7: gpr
580 	*/
581 
582 	if (urb->actual_length < 8)
583 		return;
584 
585 	buf = urb->transfer_buffer;
586 
587 	link = !!(buf[0] & 0x40);
588 	if (netif_carrier_ok(dev->net) != link) {
589 		if (link) {
590 			netif_carrier_on(dev->net);
591 			usbnet_defer_kevent (dev, EVENT_LINK_RESET);
592 		}
593 		else
594 			netif_carrier_off(dev->net);
595 		devdbg(dev, "Link Status is: %d", link);
596 	}
597 }
598 
599 static int dm9601_link_reset(struct usbnet *dev)
600 {
601 	struct ethtool_cmd ecmd;
602 
603 	mii_check_media(&dev->mii, 1, 1);
604 	mii_ethtool_gset(&dev->mii, &ecmd);
605 
606 	devdbg(dev, "link_reset() speed: %d duplex: %d",
607 	       ecmd.speed, ecmd.duplex);
608 
609 	return 0;
610 }
611 
612 static const struct driver_info dm9601_info = {
613 	.description	= "Davicom DM9601 USB Ethernet",
614 	.flags		= FLAG_ETHER | FLAG_LINK_INTR,
615 	.bind		= dm9601_bind,
616 	.rx_fixup	= dm9601_rx_fixup,
617 	.tx_fixup	= dm9601_tx_fixup,
618 	.status		= dm9601_status,
619 	.link_reset	= dm9601_link_reset,
620 	.reset		= dm9601_link_reset,
621 };
622 
623 static const struct usb_device_id products[] = {
624 	{
625 	 USB_DEVICE(0x07aa, 0x9601),	/* Corega FEther USB-TXC */
626 	 .driver_info = (unsigned long)&dm9601_info,
627 	 },
628 	{
629 	 USB_DEVICE(0x0a46, 0x9601),	/* Davicom USB-100 */
630 	 .driver_info = (unsigned long)&dm9601_info,
631 	 },
632 	{
633 	 USB_DEVICE(0x0a46, 0x6688),	/* ZT6688 USB NIC */
634 	 .driver_info = (unsigned long)&dm9601_info,
635 	 },
636 	{
637 	 USB_DEVICE(0x0a46, 0x0268),	/* ShanTou ST268 USB NIC */
638 	 .driver_info = (unsigned long)&dm9601_info,
639 	 },
640 	{
641 	 USB_DEVICE(0x0a46, 0x8515),	/* ADMtek ADM8515 USB NIC */
642 	 .driver_info = (unsigned long)&dm9601_info,
643 	 },
644 	{
645 	USB_DEVICE(0x0a47, 0x9601),	/* Hirose USB-100 */
646 	.driver_info = (unsigned long)&dm9601_info,
647 	 },
648 	{
649 	USB_DEVICE(0x0fe6, 0x8101),	/* DM9601 USB to Fast Ethernet Adapter */
650 	.driver_info = (unsigned long)&dm9601_info,
651 	 },
652 	{
653 	 USB_DEVICE(0x0a46, 0x9000),	/* DM9000E */
654 	 .driver_info = (unsigned long)&dm9601_info,
655 	 },
656 	{},			// END
657 };
658 
659 MODULE_DEVICE_TABLE(usb, products);
660 
661 static struct usb_driver dm9601_driver = {
662 	.name = "dm9601",
663 	.id_table = products,
664 	.probe = usbnet_probe,
665 	.disconnect = usbnet_disconnect,
666 	.suspend = usbnet_suspend,
667 	.resume = usbnet_resume,
668 };
669 
670 static int __init dm9601_init(void)
671 {
672 	return usb_register(&dm9601_driver);
673 }
674 
675 static void __exit dm9601_exit(void)
676 {
677 	usb_deregister(&dm9601_driver);
678 }
679 
680 module_init(dm9601_init);
681 module_exit(dm9601_exit);
682 
683 MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>");
684 MODULE_DESCRIPTION("Davicom DM9601 USB 1.1 ethernet devices");
685 MODULE_LICENSE("GPL");
686