c6c922247d0558845bd18d2cf5c66cbf948dcaf7
[linux-2.6.git] / drivers / net / usb / smsc95xx.c
1  /***************************************************************************
2  *
3  * Copyright (C) 2007-2008 SMSC
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License
7  * as published by the Free Software Foundation; either version 2
8  * of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18  *
19  *****************************************************************************/
20
21 #include <linux/module.h>
22 #include <linux/kmod.h>
23 #include <linux/init.h>
24 #include <linux/netdevice.h>
25 #include <linux/etherdevice.h>
26 #include <linux/ethtool.h>
27 #include <linux/mii.h>
28 #include <linux/usb.h>
29 #include <linux/crc32.h>
30 #include <linux/usb/usbnet.h>
31 #include "smsc95xx.h"
32
33 #define SMSC_CHIPNAME                   "smsc95xx"
34 #define SMSC_DRIVER_VERSION             "1.0.4"
35 #define HS_USB_PKT_SIZE                 (512)
36 #define FS_USB_PKT_SIZE                 (64)
37 #define DEFAULT_HS_BURST_CAP_SIZE       (16 * 1024 + 5 * HS_USB_PKT_SIZE)
38 #define DEFAULT_FS_BURST_CAP_SIZE       (6 * 1024 + 33 * FS_USB_PKT_SIZE)
39 #define DEFAULT_BULK_IN_DELAY           (0x00002000)
40 #define MAX_SINGLE_PACKET_SIZE          (2048)
41 #define LAN95XX_EEPROM_MAGIC            (0x9500)
42 #define EEPROM_MAC_OFFSET               (0x01)
43 #define DEFAULT_TX_CSUM_ENABLE          (true)
44 #define DEFAULT_RX_CSUM_ENABLE          (true)
45 #define SMSC95XX_INTERNAL_PHY_ID        (1)
46 #define SMSC95XX_TX_OVERHEAD            (8)
47 #define SMSC95XX_TX_OVERHEAD_CSUM       (12)
48
49 struct smsc95xx_priv {
50         u32 mac_cr;
51         spinlock_t mac_cr_lock;
52         bool use_tx_csum;
53         bool use_rx_csum;
54 };
55
56 struct usb_context {
57         struct usb_ctrlrequest req;
58         struct usbnet *dev;
59 };
60
61 static int turbo_mode = true;
62 module_param(turbo_mode, bool, 0644);
63 MODULE_PARM_DESC(turbo_mode, "Enable multiple frames per Rx transaction");
64
65 static int smsc95xx_read_reg(struct usbnet *dev, u32 index, u32 *data)
66 {
67         u32 *buf = kmalloc(4, GFP_KERNEL);
68         int ret;
69
70         BUG_ON(!dev);
71
72         if (!buf)
73                 return -ENOMEM;
74
75         ret = usb_control_msg(dev->udev, usb_rcvctrlpipe(dev->udev, 0),
76                 USB_VENDOR_REQUEST_READ_REGISTER,
77                 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
78                 00, index, buf, 4, USB_CTRL_GET_TIMEOUT);
79
80         if (unlikely(ret < 0))
81                 devwarn(dev, "Failed to read register index 0x%08x", index);
82
83         le32_to_cpus(buf);
84         *data = *buf;
85         kfree(buf);
86
87         return ret;
88 }
89
90 static int smsc95xx_write_reg(struct usbnet *dev, u32 index, u32 data)
91 {
92         u32 *buf = kmalloc(4, GFP_KERNEL);
93         int ret;
94
95         BUG_ON(!dev);
96
97         if (!buf)
98                 return -ENOMEM;
99
100         *buf = data;
101         cpu_to_le32s(buf);
102
103         ret = usb_control_msg(dev->udev, usb_sndctrlpipe(dev->udev, 0),
104                 USB_VENDOR_REQUEST_WRITE_REGISTER,
105                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
106                 00, index, buf, 4, USB_CTRL_SET_TIMEOUT);
107
108         if (unlikely(ret < 0))
109                 devwarn(dev, "Failed to write register index 0x%08x", index);
110
111         kfree(buf);
112
113         return ret;
114 }
115
116 /* Loop until the read is completed with timeout
117  * called with phy_mutex held */
118 static int smsc95xx_phy_wait_not_busy(struct usbnet *dev)
119 {
120         unsigned long start_time = jiffies;
121         u32 val;
122
123         do {
124                 smsc95xx_read_reg(dev, MII_ADDR, &val);
125                 if (!(val & MII_BUSY_))
126                         return 0;
127         } while (!time_after(jiffies, start_time + HZ));
128
129         return -EIO;
130 }
131
132 static int smsc95xx_mdio_read(struct net_device *netdev, int phy_id, int idx)
133 {
134         struct usbnet *dev = netdev_priv(netdev);
135         u32 val, addr;
136
137         mutex_lock(&dev->phy_mutex);
138
139         /* confirm MII not busy */
140         if (smsc95xx_phy_wait_not_busy(dev)) {
141                 devwarn(dev, "MII is busy in smsc95xx_mdio_read");
142                 mutex_unlock(&dev->phy_mutex);
143                 return -EIO;
144         }
145
146         /* set the address, index & direction (read from PHY) */
147         phy_id &= dev->mii.phy_id_mask;
148         idx &= dev->mii.reg_num_mask;
149         addr = (phy_id << 11) | (idx << 6) | MII_READ_;
150         smsc95xx_write_reg(dev, MII_ADDR, addr);
151
152         if (smsc95xx_phy_wait_not_busy(dev)) {
153                 devwarn(dev, "Timed out reading MII reg %02X", idx);
154                 mutex_unlock(&dev->phy_mutex);
155                 return -EIO;
156         }
157
158         smsc95xx_read_reg(dev, MII_DATA, &val);
159
160         mutex_unlock(&dev->phy_mutex);
161
162         return (u16)(val & 0xFFFF);
163 }
164
165 static void smsc95xx_mdio_write(struct net_device *netdev, int phy_id, int idx,
166                                 int regval)
167 {
168         struct usbnet *dev = netdev_priv(netdev);
169         u32 val, addr;
170
171         mutex_lock(&dev->phy_mutex);
172
173         /* confirm MII not busy */
174         if (smsc95xx_phy_wait_not_busy(dev)) {
175                 devwarn(dev, "MII is busy in smsc95xx_mdio_write");
176                 mutex_unlock(&dev->phy_mutex);
177                 return;
178         }
179
180         val = regval;
181         smsc95xx_write_reg(dev, MII_DATA, val);
182
183         /* set the address, index & direction (write to PHY) */
184         phy_id &= dev->mii.phy_id_mask;
185         idx &= dev->mii.reg_num_mask;
186         addr = (phy_id << 11) | (idx << 6) | MII_WRITE_;
187         smsc95xx_write_reg(dev, MII_ADDR, addr);
188
189         if (smsc95xx_phy_wait_not_busy(dev))
190                 devwarn(dev, "Timed out writing MII reg %02X", idx);
191
192         mutex_unlock(&dev->phy_mutex);
193 }
194
195 static int smsc95xx_wait_eeprom(struct usbnet *dev)
196 {
197         unsigned long start_time = jiffies;
198         u32 val;
199
200         do {
201                 smsc95xx_read_reg(dev, E2P_CMD, &val);
202                 if (!(val & E2P_CMD_BUSY_) || (val & E2P_CMD_TIMEOUT_))
203                         break;
204                 udelay(40);
205         } while (!time_after(jiffies, start_time + HZ));
206
207         if (val & (E2P_CMD_TIMEOUT_ | E2P_CMD_BUSY_)) {
208                 devwarn(dev, "EEPROM read operation timeout");
209                 return -EIO;
210         }
211
212         return 0;
213 }
214
215 static int smsc95xx_eeprom_confirm_not_busy(struct usbnet *dev)
216 {
217         unsigned long start_time = jiffies;
218         u32 val;
219
220         do {
221                 smsc95xx_read_reg(dev, E2P_CMD, &val);
222
223                 if (!(val & E2P_CMD_BUSY_))
224                         return 0;
225
226                 udelay(40);
227         } while (!time_after(jiffies, start_time + HZ));
228
229         devwarn(dev, "EEPROM is busy");
230         return -EIO;
231 }
232
233 static int smsc95xx_read_eeprom(struct usbnet *dev, u32 offset, u32 length,
234                                 u8 *data)
235 {
236         u32 val;
237         int i, ret;
238
239         BUG_ON(!dev);
240         BUG_ON(!data);
241
242         ret = smsc95xx_eeprom_confirm_not_busy(dev);
243         if (ret)
244                 return ret;
245
246         for (i = 0; i < length; i++) {
247                 val = E2P_CMD_BUSY_ | E2P_CMD_READ_ | (offset & E2P_CMD_ADDR_);
248                 smsc95xx_write_reg(dev, E2P_CMD, val);
249
250                 ret = smsc95xx_wait_eeprom(dev);
251                 if (ret < 0)
252                         return ret;
253
254                 smsc95xx_read_reg(dev, E2P_DATA, &val);
255
256                 data[i] = val & 0xFF;
257                 offset++;
258         }
259
260         return 0;
261 }
262
263 static int smsc95xx_write_eeprom(struct usbnet *dev, u32 offset, u32 length,
264                                  u8 *data)
265 {
266         u32 val;
267         int i, ret;
268
269         BUG_ON(!dev);
270         BUG_ON(!data);
271
272         ret = smsc95xx_eeprom_confirm_not_busy(dev);
273         if (ret)
274                 return ret;
275
276         /* Issue write/erase enable command */
277         val = E2P_CMD_BUSY_ | E2P_CMD_EWEN_;
278         smsc95xx_write_reg(dev, E2P_CMD, val);
279
280         ret = smsc95xx_wait_eeprom(dev);
281         if (ret < 0)
282                 return ret;
283
284         for (i = 0; i < length; i++) {
285
286                 /* Fill data register */
287                 val = data[i];
288                 smsc95xx_write_reg(dev, E2P_DATA, val);
289
290                 /* Send "write" command */
291                 val = E2P_CMD_BUSY_ | E2P_CMD_WRITE_ | (offset & E2P_CMD_ADDR_);
292                 smsc95xx_write_reg(dev, E2P_CMD, val);
293
294                 ret = smsc95xx_wait_eeprom(dev);
295                 if (ret < 0)
296                         return ret;
297
298                 offset++;
299         }
300
301         return 0;
302 }
303
304 static void smsc95xx_async_cmd_callback(struct urb *urb)
305 {
306         struct usb_context *usb_context = urb->context;
307         struct usbnet *dev = usb_context->dev;
308         int status = urb->status;
309
310         if (status < 0)
311                 devwarn(dev, "async callback failed with %d", status);
312
313         kfree(usb_context);
314         usb_free_urb(urb);
315 }
316
317 static int smsc95xx_write_reg_async(struct usbnet *dev, u16 index, u32 *data)
318 {
319         struct usb_context *usb_context;
320         int status;
321         struct urb *urb;
322         const u16 size = 4;
323
324         urb = usb_alloc_urb(0, GFP_ATOMIC);
325         if (!urb) {
326                 devwarn(dev, "Error allocating URB");
327                 return -ENOMEM;
328         }
329
330         usb_context = kmalloc(sizeof(struct usb_context), GFP_ATOMIC);
331         if (usb_context == NULL) {
332                 devwarn(dev, "Error allocating control msg");
333                 usb_free_urb(urb);
334                 return -ENOMEM;
335         }
336
337         usb_context->req.bRequestType =
338                 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
339         usb_context->req.bRequest = USB_VENDOR_REQUEST_WRITE_REGISTER;
340         usb_context->req.wValue = 00;
341         usb_context->req.wIndex = cpu_to_le16(index);
342         usb_context->req.wLength = cpu_to_le16(size);
343
344         usb_fill_control_urb(urb, dev->udev, usb_sndctrlpipe(dev->udev, 0),
345                 (void *)&usb_context->req, data, size,
346                 smsc95xx_async_cmd_callback,
347                 (void *)usb_context);
348
349         status = usb_submit_urb(urb, GFP_ATOMIC);
350         if (status < 0) {
351                 devwarn(dev, "Error submitting control msg, sts=%d", status);
352                 kfree(usb_context);
353                 usb_free_urb(urb);
354         }
355
356         return status;
357 }
358
359 /* returns hash bit number for given MAC address
360  * example:
361  * 01 00 5E 00 00 01 -> returns bit number 31 */
362 static unsigned int smsc95xx_hash(char addr[ETH_ALEN])
363 {
364         return (ether_crc(ETH_ALEN, addr) >> 26) & 0x3f;
365 }
366
367 static void smsc95xx_set_multicast(struct net_device *netdev)
368 {
369         struct usbnet *dev = netdev_priv(netdev);
370         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
371         u32 hash_hi = 0;
372         u32 hash_lo = 0;
373         unsigned long flags;
374
375         spin_lock_irqsave(&pdata->mac_cr_lock, flags);
376
377         if (dev->net->flags & IFF_PROMISC) {
378                 if (netif_msg_drv(dev))
379                         devdbg(dev, "promiscuous mode enabled");
380                 pdata->mac_cr |= MAC_CR_PRMS_;
381                 pdata->mac_cr &= ~(MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
382         } else if (dev->net->flags & IFF_ALLMULTI) {
383                 if (netif_msg_drv(dev))
384                         devdbg(dev, "receive all multicast enabled");
385                 pdata->mac_cr |= MAC_CR_MCPAS_;
386                 pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_HPFILT_);
387         } else if (dev->net->mc_count > 0) {
388                 struct dev_mc_list *mc_list = dev->net->mc_list;
389                 int count = 0;
390
391                 pdata->mac_cr |= MAC_CR_HPFILT_;
392                 pdata->mac_cr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
393
394                 while (mc_list) {
395                         count++;
396                         if (mc_list->dmi_addrlen == ETH_ALEN) {
397                                 u32 bitnum = smsc95xx_hash(mc_list->dmi_addr);
398                                 u32 mask = 0x01 << (bitnum & 0x1F);
399                                 if (bitnum & 0x20)
400                                         hash_hi |= mask;
401                                 else
402                                         hash_lo |= mask;
403                         } else {
404                                 devwarn(dev, "dmi_addrlen != 6");
405                         }
406                         mc_list = mc_list->next;
407                 }
408
409                 if (count != ((u32)dev->net->mc_count))
410                         devwarn(dev, "mc_count != dev->mc_count");
411
412                 if (netif_msg_drv(dev))
413                         devdbg(dev, "HASHH=0x%08X, HASHL=0x%08X", hash_hi,
414                                 hash_lo);
415         } else {
416                 if (netif_msg_drv(dev))
417                         devdbg(dev, "receive own packets only");
418                 pdata->mac_cr &=
419                         ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_ | MAC_CR_HPFILT_);
420         }
421
422         spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
423
424         /* Initiate async writes, as we can't wait for completion here */
425         smsc95xx_write_reg_async(dev, HASHH, &hash_hi);
426         smsc95xx_write_reg_async(dev, HASHL, &hash_lo);
427         smsc95xx_write_reg_async(dev, MAC_CR, &pdata->mac_cr);
428 }
429
430 static void smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
431                                             u16 lcladv, u16 rmtadv)
432 {
433         u32 flow, afc_cfg = 0;
434
435         int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
436         if (ret < 0) {
437                 devwarn(dev, "error reading AFC_CFG");
438                 return;
439         }
440
441         if (duplex == DUPLEX_FULL) {
442                 u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
443
444                 if (cap & FLOW_CTRL_RX)
445                         flow = 0xFFFF0002;
446                 else
447                         flow = 0;
448
449                 if (cap & FLOW_CTRL_TX)
450                         afc_cfg |= 0xF;
451                 else
452                         afc_cfg &= ~0xF;
453
454                 if (netif_msg_link(dev))
455                         devdbg(dev, "rx pause %s, tx pause %s",
456                                 (cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
457                                 (cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
458         } else {
459                 if (netif_msg_link(dev))
460                         devdbg(dev, "half duplex");
461                 flow = 0;
462                 afc_cfg |= 0xF;
463         }
464
465         smsc95xx_write_reg(dev, FLOW, flow);
466         smsc95xx_write_reg(dev, AFC_CFG, afc_cfg);
467 }
468
469 static int smsc95xx_link_reset(struct usbnet *dev)
470 {
471         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
472         struct mii_if_info *mii = &dev->mii;
473         struct ethtool_cmd ecmd;
474         unsigned long flags;
475         u16 lcladv, rmtadv;
476         u32 intdata;
477
478         /* clear interrupt status */
479         smsc95xx_mdio_read(dev->net, mii->phy_id, PHY_INT_SRC);
480         intdata = 0xFFFFFFFF;
481         smsc95xx_write_reg(dev, INT_STS, intdata);
482
483         mii_check_media(mii, 1, 1);
484         mii_ethtool_gset(&dev->mii, &ecmd);
485         lcladv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_ADVERTISE);
486         rmtadv = smsc95xx_mdio_read(dev->net, mii->phy_id, MII_LPA);
487
488         if (netif_msg_link(dev))
489                 devdbg(dev, "speed: %d duplex: %d lcladv: %04x rmtadv: %04x",
490                         ecmd.speed, ecmd.duplex, lcladv, rmtadv);
491
492         spin_lock_irqsave(&pdata->mac_cr_lock, flags);
493         if (ecmd.duplex != DUPLEX_FULL) {
494                 pdata->mac_cr &= ~MAC_CR_FDPX_;
495                 pdata->mac_cr |= MAC_CR_RCVOWN_;
496         } else {
497                 pdata->mac_cr &= ~MAC_CR_RCVOWN_;
498                 pdata->mac_cr |= MAC_CR_FDPX_;
499         }
500         spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
501
502         smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
503
504         smsc95xx_phy_update_flowcontrol(dev, ecmd.duplex, lcladv, rmtadv);
505
506         return 0;
507 }
508
509 static void smsc95xx_status(struct usbnet *dev, struct urb *urb)
510 {
511         u32 intdata;
512
513         if (urb->actual_length != 4) {
514                 devwarn(dev, "unexpected urb length %d", urb->actual_length);
515                 return;
516         }
517
518         memcpy(&intdata, urb->transfer_buffer, 4);
519         le32_to_cpus(&intdata);
520
521         if (netif_msg_link(dev))
522                 devdbg(dev, "intdata: 0x%08X", intdata);
523
524         if (intdata & INT_ENP_PHY_INT_)
525                 usbnet_defer_kevent(dev, EVENT_LINK_RESET);
526         else
527                 devwarn(dev, "unexpected interrupt, intdata=0x%08X", intdata);
528 }
529
530 /* Enable or disable Tx & Rx checksum offload engines */
531 static int smsc95xx_set_csums(struct usbnet *dev)
532 {
533         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
534         u32 read_buf;
535         int ret = smsc95xx_read_reg(dev, COE_CR, &read_buf);
536         if (ret < 0) {
537                 devwarn(dev, "Failed to read COE_CR: %d", ret);
538                 return ret;
539         }
540
541         if (pdata->use_tx_csum)
542                 read_buf |= Tx_COE_EN_;
543         else
544                 read_buf &= ~Tx_COE_EN_;
545
546         if (pdata->use_rx_csum)
547                 read_buf |= Rx_COE_EN_;
548         else
549                 read_buf &= ~Rx_COE_EN_;
550
551         ret = smsc95xx_write_reg(dev, COE_CR, read_buf);
552         if (ret < 0) {
553                 devwarn(dev, "Failed to write COE_CR: %d", ret);
554                 return ret;
555         }
556
557         if (netif_msg_hw(dev))
558                 devdbg(dev, "COE_CR = 0x%08x", read_buf);
559         return 0;
560 }
561
562 static int smsc95xx_ethtool_get_eeprom_len(struct net_device *net)
563 {
564         return MAX_EEPROM_SIZE;
565 }
566
567 static int smsc95xx_ethtool_get_eeprom(struct net_device *netdev,
568                                        struct ethtool_eeprom *ee, u8 *data)
569 {
570         struct usbnet *dev = netdev_priv(netdev);
571
572         ee->magic = LAN95XX_EEPROM_MAGIC;
573
574         return smsc95xx_read_eeprom(dev, ee->offset, ee->len, data);
575 }
576
577 static int smsc95xx_ethtool_set_eeprom(struct net_device *netdev,
578                                        struct ethtool_eeprom *ee, u8 *data)
579 {
580         struct usbnet *dev = netdev_priv(netdev);
581
582         if (ee->magic != LAN95XX_EEPROM_MAGIC) {
583                 devwarn(dev, "EEPROM: magic value mismatch, magic = 0x%x",
584                         ee->magic);
585                 return -EINVAL;
586         }
587
588         return smsc95xx_write_eeprom(dev, ee->offset, ee->len, data);
589 }
590
591 static u32 smsc95xx_ethtool_get_rx_csum(struct net_device *netdev)
592 {
593         struct usbnet *dev = netdev_priv(netdev);
594         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
595
596         return pdata->use_rx_csum;
597 }
598
599 static int smsc95xx_ethtool_set_rx_csum(struct net_device *netdev, u32 val)
600 {
601         struct usbnet *dev = netdev_priv(netdev);
602         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
603
604         pdata->use_rx_csum = !!val;
605
606         return smsc95xx_set_csums(dev);
607 }
608
609 static u32 smsc95xx_ethtool_get_tx_csum(struct net_device *netdev)
610 {
611         struct usbnet *dev = netdev_priv(netdev);
612         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
613
614         return pdata->use_tx_csum;
615 }
616
617 static int smsc95xx_ethtool_set_tx_csum(struct net_device *netdev, u32 val)
618 {
619         struct usbnet *dev = netdev_priv(netdev);
620         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
621
622         pdata->use_tx_csum = !!val;
623
624         ethtool_op_set_tx_hw_csum(netdev, pdata->use_tx_csum);
625         return smsc95xx_set_csums(dev);
626 }
627
628 static const struct ethtool_ops smsc95xx_ethtool_ops = {
629         .get_link       = usbnet_get_link,
630         .nway_reset     = usbnet_nway_reset,
631         .get_drvinfo    = usbnet_get_drvinfo,
632         .get_msglevel   = usbnet_get_msglevel,
633         .set_msglevel   = usbnet_set_msglevel,
634         .get_settings   = usbnet_get_settings,
635         .set_settings   = usbnet_set_settings,
636         .get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
637         .get_eeprom     = smsc95xx_ethtool_get_eeprom,
638         .set_eeprom     = smsc95xx_ethtool_set_eeprom,
639         .get_tx_csum    = smsc95xx_ethtool_get_tx_csum,
640         .set_tx_csum    = smsc95xx_ethtool_set_tx_csum,
641         .get_rx_csum    = smsc95xx_ethtool_get_rx_csum,
642         .set_rx_csum    = smsc95xx_ethtool_set_rx_csum,
643 };
644
645 static int smsc95xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
646 {
647         struct usbnet *dev = netdev_priv(netdev);
648
649         if (!netif_running(netdev))
650                 return -EINVAL;
651
652         return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
653 }
654
655 static void smsc95xx_init_mac_address(struct usbnet *dev)
656 {
657         /* try reading mac address from EEPROM */
658         if (smsc95xx_read_eeprom(dev, EEPROM_MAC_OFFSET, ETH_ALEN,
659                         dev->net->dev_addr) == 0) {
660                 if (is_valid_ether_addr(dev->net->dev_addr)) {
661                         /* eeprom values are valid so use them */
662                         if (netif_msg_ifup(dev))
663                                 devdbg(dev, "MAC address read from EEPROM");
664                         return;
665                 }
666         }
667
668         /* no eeprom, or eeprom values are invalid. generate random MAC */
669         random_ether_addr(dev->net->dev_addr);
670         if (netif_msg_ifup(dev))
671                 devdbg(dev, "MAC address set to random_ether_addr");
672 }
673
674 static int smsc95xx_set_mac_address(struct usbnet *dev)
675 {
676         u32 addr_lo = dev->net->dev_addr[0] | dev->net->dev_addr[1] << 8 |
677                 dev->net->dev_addr[2] << 16 | dev->net->dev_addr[3] << 24;
678         u32 addr_hi = dev->net->dev_addr[4] | dev->net->dev_addr[5] << 8;
679         int ret;
680
681         ret = smsc95xx_write_reg(dev, ADDRL, addr_lo);
682         if (ret < 0) {
683                 devwarn(dev, "Failed to write ADDRL: %d", ret);
684                 return ret;
685         }
686
687         ret = smsc95xx_write_reg(dev, ADDRH, addr_hi);
688         if (ret < 0) {
689                 devwarn(dev, "Failed to write ADDRH: %d", ret);
690                 return ret;
691         }
692
693         return 0;
694 }
695
696 /* starts the TX path */
697 static void smsc95xx_start_tx_path(struct usbnet *dev)
698 {
699         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
700         unsigned long flags;
701         u32 reg_val;
702
703         /* Enable Tx at MAC */
704         spin_lock_irqsave(&pdata->mac_cr_lock, flags);
705         pdata->mac_cr |= MAC_CR_TXEN_;
706         spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
707
708         smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
709
710         /* Enable Tx at SCSRs */
711         reg_val = TX_CFG_ON_;
712         smsc95xx_write_reg(dev, TX_CFG, reg_val);
713 }
714
715 /* Starts the Receive path */
716 static void smsc95xx_start_rx_path(struct usbnet *dev)
717 {
718         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
719         unsigned long flags;
720
721         spin_lock_irqsave(&pdata->mac_cr_lock, flags);
722         pdata->mac_cr |= MAC_CR_RXEN_;
723         spin_unlock_irqrestore(&pdata->mac_cr_lock, flags);
724
725         smsc95xx_write_reg(dev, MAC_CR, pdata->mac_cr);
726 }
727
728 static int smsc95xx_phy_initialize(struct usbnet *dev)
729 {
730         /* Initialize MII structure */
731         dev->mii.dev = dev->net;
732         dev->mii.mdio_read = smsc95xx_mdio_read;
733         dev->mii.mdio_write = smsc95xx_mdio_write;
734         dev->mii.phy_id_mask = 0x1f;
735         dev->mii.reg_num_mask = 0x1f;
736         dev->mii.phy_id = SMSC95XX_INTERNAL_PHY_ID;
737
738         smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
739         smsc95xx_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
740                 ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP |
741                 ADVERTISE_PAUSE_ASYM);
742
743         /* read to clear */
744         smsc95xx_mdio_read(dev->net, dev->mii.phy_id, PHY_INT_SRC);
745
746         smsc95xx_mdio_write(dev->net, dev->mii.phy_id, PHY_INT_MASK,
747                 PHY_INT_MASK_DEFAULT_);
748         mii_nway_restart(&dev->mii);
749
750         if (netif_msg_ifup(dev))
751                 devdbg(dev, "phy initialised succesfully");
752         return 0;
753 }
754
755 static int smsc95xx_reset(struct usbnet *dev)
756 {
757         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
758         struct net_device *netdev = dev->net;
759         u32 read_buf, write_buf, burst_cap;
760         int ret = 0, timeout;
761
762         if (netif_msg_ifup(dev))
763                 devdbg(dev, "entering smsc95xx_reset");
764
765         write_buf = HW_CFG_LRST_;
766         ret = smsc95xx_write_reg(dev, HW_CFG, write_buf);
767         if (ret < 0) {
768                 devwarn(dev, "Failed to write HW_CFG_LRST_ bit in HW_CFG "
769                         "register, ret = %d", ret);
770                 return ret;
771         }
772
773         timeout = 0;
774         do {
775                 ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
776                 if (ret < 0) {
777                         devwarn(dev, "Failed to read HW_CFG: %d", ret);
778                         return ret;
779                 }
780                 msleep(10);
781                 timeout++;
782         } while ((read_buf & HW_CFG_LRST_) && (timeout < 100));
783
784         if (timeout >= 100) {
785                 devwarn(dev, "timeout waiting for completion of Lite Reset");
786                 return ret;
787         }
788
789         write_buf = PM_CTL_PHY_RST_;
790         ret = smsc95xx_write_reg(dev, PM_CTRL, write_buf);
791         if (ret < 0) {
792                 devwarn(dev, "Failed to write PM_CTRL: %d", ret);
793                 return ret;
794         }
795
796         timeout = 0;
797         do {
798                 ret = smsc95xx_read_reg(dev, PM_CTRL, &read_buf);
799                 if (ret < 0) {
800                         devwarn(dev, "Failed to read PM_CTRL: %d", ret);
801                         return ret;
802                 }
803                 msleep(10);
804                 timeout++;
805         } while ((read_buf & PM_CTL_PHY_RST_) && (timeout < 100));
806
807         if (timeout >= 100) {
808                 devwarn(dev, "timeout waiting for PHY Reset");
809                 return ret;
810         }
811
812         smsc95xx_init_mac_address(dev);
813
814         ret = smsc95xx_set_mac_address(dev);
815         if (ret < 0)
816                 return ret;
817
818         if (netif_msg_ifup(dev))
819                 devdbg(dev, "MAC Address: %pM", dev->net->dev_addr);
820
821         ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
822         if (ret < 0) {
823                 devwarn(dev, "Failed to read HW_CFG: %d", ret);
824                 return ret;
825         }
826
827         if (netif_msg_ifup(dev))
828                 devdbg(dev, "Read Value from HW_CFG : 0x%08x", read_buf);
829
830         read_buf |= HW_CFG_BIR_;
831
832         ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
833         if (ret < 0) {
834                 devwarn(dev, "Failed to write HW_CFG_BIR_ bit in HW_CFG "
835                         "register, ret = %d", ret);
836                 return ret;
837         }
838
839         ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
840         if (ret < 0) {
841                 devwarn(dev, "Failed to read HW_CFG: %d", ret);
842                 return ret;
843         }
844         if (netif_msg_ifup(dev))
845                 devdbg(dev, "Read Value from HW_CFG after writing "
846                         "HW_CFG_BIR_: 0x%08x", read_buf);
847
848         if (!turbo_mode) {
849                 burst_cap = 0;
850                 dev->rx_urb_size = MAX_SINGLE_PACKET_SIZE;
851         } else if (dev->udev->speed == USB_SPEED_HIGH) {
852                 burst_cap = DEFAULT_HS_BURST_CAP_SIZE / HS_USB_PKT_SIZE;
853                 dev->rx_urb_size = DEFAULT_HS_BURST_CAP_SIZE;
854         } else {
855                 burst_cap = DEFAULT_FS_BURST_CAP_SIZE / FS_USB_PKT_SIZE;
856                 dev->rx_urb_size = DEFAULT_FS_BURST_CAP_SIZE;
857         }
858
859         if (netif_msg_ifup(dev))
860                 devdbg(dev, "rx_urb_size=%ld", (ulong)dev->rx_urb_size);
861
862         ret = smsc95xx_write_reg(dev, BURST_CAP, burst_cap);
863         if (ret < 0) {
864                 devwarn(dev, "Failed to write BURST_CAP: %d", ret);
865                 return ret;
866         }
867
868         ret = smsc95xx_read_reg(dev, BURST_CAP, &read_buf);
869         if (ret < 0) {
870                 devwarn(dev, "Failed to read BURST_CAP: %d", ret);
871                 return ret;
872         }
873         if (netif_msg_ifup(dev))
874                 devdbg(dev, "Read Value from BURST_CAP after writing: 0x%08x",
875                         read_buf);
876
877         read_buf = DEFAULT_BULK_IN_DELAY;
878         ret = smsc95xx_write_reg(dev, BULK_IN_DLY, read_buf);
879         if (ret < 0) {
880                 devwarn(dev, "ret = %d", ret);
881                 return ret;
882         }
883
884         ret = smsc95xx_read_reg(dev, BULK_IN_DLY, &read_buf);
885         if (ret < 0) {
886                 devwarn(dev, "Failed to read BULK_IN_DLY: %d", ret);
887                 return ret;
888         }
889         if (netif_msg_ifup(dev))
890                 devdbg(dev, "Read Value from BULK_IN_DLY after writing: "
891                         "0x%08x", read_buf);
892
893         ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
894         if (ret < 0) {
895                 devwarn(dev, "Failed to read HW_CFG: %d", ret);
896                 return ret;
897         }
898         if (netif_msg_ifup(dev))
899                 devdbg(dev, "Read Value from HW_CFG: 0x%08x", read_buf);
900
901         if (turbo_mode)
902                 read_buf |= (HW_CFG_MEF_ | HW_CFG_BCE_);
903
904         read_buf &= ~HW_CFG_RXDOFF_;
905
906         /* set Rx data offset=2, Make IP header aligns on word boundary. */
907         read_buf |= NET_IP_ALIGN << 9;
908
909         ret = smsc95xx_write_reg(dev, HW_CFG, read_buf);
910         if (ret < 0) {
911                 devwarn(dev, "Failed to write HW_CFG register, ret=%d", ret);
912                 return ret;
913         }
914
915         ret = smsc95xx_read_reg(dev, HW_CFG, &read_buf);
916         if (ret < 0) {
917                 devwarn(dev, "Failed to read HW_CFG: %d", ret);
918                 return ret;
919         }
920         if (netif_msg_ifup(dev))
921                 devdbg(dev, "Read Value from HW_CFG after writing: 0x%08x",
922                         read_buf);
923
924         write_buf = 0xFFFFFFFF;
925         ret = smsc95xx_write_reg(dev, INT_STS, write_buf);
926         if (ret < 0) {
927                 devwarn(dev, "Failed to write INT_STS register, ret=%d", ret);
928                 return ret;
929         }
930
931         ret = smsc95xx_read_reg(dev, ID_REV, &read_buf);
932         if (ret < 0) {
933                 devwarn(dev, "Failed to read ID_REV: %d", ret);
934                 return ret;
935         }
936         if (netif_msg_ifup(dev))
937                 devdbg(dev, "ID_REV = 0x%08x", read_buf);
938
939         /* Configure GPIO pins as LED outputs */
940         write_buf = LED_GPIO_CFG_SPD_LED | LED_GPIO_CFG_LNK_LED |
941                 LED_GPIO_CFG_FDX_LED;
942         ret = smsc95xx_write_reg(dev, LED_GPIO_CFG, write_buf);
943         if (ret < 0) {
944                 devwarn(dev, "Failed to write LED_GPIO_CFG register, ret=%d",
945                         ret);
946                 return ret;
947         }
948
949         /* Init Tx */
950         write_buf = 0;
951         ret = smsc95xx_write_reg(dev, FLOW, write_buf);
952         if (ret < 0) {
953                 devwarn(dev, "Failed to write FLOW: %d", ret);
954                 return ret;
955         }
956
957         read_buf = AFC_CFG_DEFAULT;
958         ret = smsc95xx_write_reg(dev, AFC_CFG, read_buf);
959         if (ret < 0) {
960                 devwarn(dev, "Failed to write AFC_CFG: %d", ret);
961                 return ret;
962         }
963
964         /* Don't need mac_cr_lock during initialisation */
965         ret = smsc95xx_read_reg(dev, MAC_CR, &pdata->mac_cr);
966         if (ret < 0) {
967                 devwarn(dev, "Failed to read MAC_CR: %d", ret);
968                 return ret;
969         }
970
971         /* Init Rx */
972         /* Set Vlan */
973         write_buf = (u32)ETH_P_8021Q;
974         ret = smsc95xx_write_reg(dev, VLAN1, write_buf);
975         if (ret < 0) {
976                 devwarn(dev, "Failed to write VAN1: %d", ret);
977                 return ret;
978         }
979
980         /* Enable or disable checksum offload engines */
981         ethtool_op_set_tx_hw_csum(netdev, pdata->use_tx_csum);
982         ret = smsc95xx_set_csums(dev);
983         if (ret < 0) {
984                 devwarn(dev, "Failed to set csum offload: %d", ret);
985                 return ret;
986         }
987
988         smsc95xx_set_multicast(dev->net);
989
990         if (smsc95xx_phy_initialize(dev) < 0)
991                 return -EIO;
992
993         ret = smsc95xx_read_reg(dev, INT_EP_CTL, &read_buf);
994         if (ret < 0) {
995                 devwarn(dev, "Failed to read INT_EP_CTL: %d", ret);
996                 return ret;
997         }
998
999         /* enable PHY interrupts */
1000         read_buf |= INT_EP_CTL_PHY_INT_;
1001
1002         ret = smsc95xx_write_reg(dev, INT_EP_CTL, read_buf);
1003         if (ret < 0) {
1004                 devwarn(dev, "Failed to write INT_EP_CTL: %d", ret);
1005                 return ret;
1006         }
1007
1008         smsc95xx_start_tx_path(dev);
1009         smsc95xx_start_rx_path(dev);
1010
1011         if (netif_msg_ifup(dev))
1012                 devdbg(dev, "smsc95xx_reset, return 0");
1013         return 0;
1014 }
1015
1016 static const struct net_device_ops smsc95xx_netdev_ops = {
1017         .ndo_open               = usbnet_open,
1018         .ndo_stop               = usbnet_stop,
1019         .ndo_start_xmit         = usbnet_start_xmit,
1020         .ndo_tx_timeout         = usbnet_tx_timeout,
1021         .ndo_change_mtu         = usbnet_change_mtu,
1022         .ndo_set_mac_address    = eth_mac_addr,
1023         .ndo_validate_addr      = eth_validate_addr,
1024         .ndo_do_ioctl           = smsc95xx_ioctl,
1025         .ndo_set_multicast_list = smsc95xx_set_multicast,
1026 };
1027
1028 static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
1029 {
1030         struct smsc95xx_priv *pdata = NULL;
1031         int ret;
1032
1033         printk(KERN_INFO SMSC_CHIPNAME " v" SMSC_DRIVER_VERSION "\n");
1034
1035         ret = usbnet_get_endpoints(dev, intf);
1036         if (ret < 0) {
1037                 devwarn(dev, "usbnet_get_endpoints failed: %d", ret);
1038                 return ret;
1039         }
1040
1041         dev->data[0] = (unsigned long)kzalloc(sizeof(struct smsc95xx_priv),
1042                 GFP_KERNEL);
1043
1044         pdata = (struct smsc95xx_priv *)(dev->data[0]);
1045         if (!pdata) {
1046                 devwarn(dev, "Unable to allocate struct smsc95xx_priv");
1047                 return -ENOMEM;
1048         }
1049
1050         spin_lock_init(&pdata->mac_cr_lock);
1051
1052         pdata->use_tx_csum = DEFAULT_TX_CSUM_ENABLE;
1053         pdata->use_rx_csum = DEFAULT_RX_CSUM_ENABLE;
1054
1055         /* Init all registers */
1056         ret = smsc95xx_reset(dev);
1057
1058         dev->net->netdev_ops = &smsc95xx_netdev_ops;
1059         dev->net->ethtool_ops = &smsc95xx_ethtool_ops;
1060         dev->net->flags |= IFF_MULTICAST;
1061         dev->net->hard_header_len += SMSC95XX_TX_OVERHEAD;
1062         return 0;
1063 }
1064
1065 static void smsc95xx_unbind(struct usbnet *dev, struct usb_interface *intf)
1066 {
1067         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1068         if (pdata) {
1069                 if (netif_msg_ifdown(dev))
1070                         devdbg(dev, "free pdata");
1071                 kfree(pdata);
1072                 pdata = NULL;
1073                 dev->data[0] = 0;
1074         }
1075 }
1076
1077 static void smsc95xx_rx_csum_offload(struct sk_buff *skb)
1078 {
1079         skb->csum = *(u16 *)(skb_tail_pointer(skb) - 2);
1080         skb->ip_summed = CHECKSUM_COMPLETE;
1081         skb_trim(skb, skb->len - 2);
1082 }
1083
1084 static int smsc95xx_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
1085 {
1086         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1087
1088         while (skb->len > 0) {
1089                 u32 header, align_count;
1090                 struct sk_buff *ax_skb;
1091                 unsigned char *packet;
1092                 u16 size;
1093
1094                 memcpy(&header, skb->data, sizeof(header));
1095                 le32_to_cpus(&header);
1096                 skb_pull(skb, 4 + NET_IP_ALIGN);
1097                 packet = skb->data;
1098
1099                 /* get the packet length */
1100                 size = (u16)((header & RX_STS_FL_) >> 16);
1101                 align_count = (4 - ((size + NET_IP_ALIGN) % 4)) % 4;
1102
1103                 if (unlikely(header & RX_STS_ES_)) {
1104                         if (netif_msg_rx_err(dev))
1105                                 devdbg(dev, "Error header=0x%08x", header);
1106                         dev->net->stats.rx_errors++;
1107                         dev->net->stats.rx_dropped++;
1108
1109                         if (header & RX_STS_CRC_) {
1110                                 dev->net->stats.rx_crc_errors++;
1111                         } else {
1112                                 if (header & (RX_STS_TL_ | RX_STS_RF_))
1113                                         dev->net->stats.rx_frame_errors++;
1114
1115                                 if ((header & RX_STS_LE_) &&
1116                                         (!(header & RX_STS_FT_)))
1117                                         dev->net->stats.rx_length_errors++;
1118                         }
1119                 } else {
1120                         /* ETH_FRAME_LEN + 4(CRC) + 2(COE) + 4(Vlan) */
1121                         if (unlikely(size > (ETH_FRAME_LEN + 12))) {
1122                                 if (netif_msg_rx_err(dev))
1123                                         devdbg(dev, "size err header=0x%08x",
1124                                                 header);
1125                                 return 0;
1126                         }
1127
1128                         /* last frame in this batch */
1129                         if (skb->len == size) {
1130                                 if (pdata->use_rx_csum)
1131                                         smsc95xx_rx_csum_offload(skb);
1132                                 skb_trim(skb, skb->len - 4); /* remove fcs */
1133                                 skb->truesize = size + sizeof(struct sk_buff);
1134
1135                                 return 1;
1136                         }
1137
1138                         ax_skb = skb_clone(skb, GFP_ATOMIC);
1139                         if (unlikely(!ax_skb)) {
1140                                 devwarn(dev, "Error allocating skb");
1141                                 return 0;
1142                         }
1143
1144                         ax_skb->len = size;
1145                         ax_skb->data = packet;
1146                         skb_set_tail_pointer(ax_skb, size);
1147
1148                         if (pdata->use_rx_csum)
1149                                 smsc95xx_rx_csum_offload(ax_skb);
1150                         skb_trim(ax_skb, ax_skb->len - 4); /* remove fcs */
1151                         ax_skb->truesize = size + sizeof(struct sk_buff);
1152
1153                         usbnet_skb_return(dev, ax_skb);
1154                 }
1155
1156                 skb_pull(skb, size);
1157
1158                 /* padding bytes before the next frame starts */
1159                 if (skb->len)
1160                         skb_pull(skb, align_count);
1161         }
1162
1163         if (unlikely(skb->len < 0)) {
1164                 devwarn(dev, "invalid rx length<0 %d", skb->len);
1165                 return 0;
1166         }
1167
1168         return 1;
1169 }
1170
1171 static u32 smsc95xx_calc_csum_preamble(struct sk_buff *skb)
1172 {
1173         int len = skb->data - skb->head;
1174         u16 high_16 = (u16)(skb->csum_offset + skb->csum_start - len);
1175         u16 low_16 = (u16)(skb->csum_start - len);
1176         return (high_16 << 16) | low_16;
1177 }
1178
1179 static struct sk_buff *smsc95xx_tx_fixup(struct usbnet *dev,
1180                                          struct sk_buff *skb, gfp_t flags)
1181 {
1182         struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
1183         bool csum = pdata->use_tx_csum && (skb->ip_summed == CHECKSUM_PARTIAL);
1184         int overhead = csum ? SMSC95XX_TX_OVERHEAD_CSUM : SMSC95XX_TX_OVERHEAD;
1185         u32 tx_cmd_a, tx_cmd_b;
1186
1187         /* We do not advertise SG, so skbs should be already linearized */
1188         BUG_ON(skb_shinfo(skb)->nr_frags);
1189
1190         if (skb_headroom(skb) < overhead) {
1191                 struct sk_buff *skb2 = skb_copy_expand(skb,
1192                         overhead, 0, flags);
1193                 dev_kfree_skb_any(skb);
1194                 skb = skb2;
1195                 if (!skb)
1196                         return NULL;
1197         }
1198
1199         if (csum) {
1200                 u32 csum_preamble = smsc95xx_calc_csum_preamble(skb);
1201                 skb_push(skb, 4);
1202                 memcpy(skb->data, &csum_preamble, 4);
1203         }
1204
1205         skb_push(skb, 4);
1206         tx_cmd_b = (u32)(skb->len - 4);
1207         if (csum)
1208                 tx_cmd_b |= TX_CMD_B_CSUM_ENABLE;
1209         cpu_to_le32s(&tx_cmd_b);
1210         memcpy(skb->data, &tx_cmd_b, 4);
1211
1212         skb_push(skb, 4);
1213         tx_cmd_a = (u32)(skb->len - 8) | TX_CMD_A_FIRST_SEG_ |
1214                 TX_CMD_A_LAST_SEG_;
1215         cpu_to_le32s(&tx_cmd_a);
1216         memcpy(skb->data, &tx_cmd_a, 4);
1217
1218         return skb;
1219 }
1220
1221 static const struct driver_info smsc95xx_info = {
1222         .description    = "smsc95xx USB 2.0 Ethernet",
1223         .bind           = smsc95xx_bind,
1224         .unbind         = smsc95xx_unbind,
1225         .link_reset     = smsc95xx_link_reset,
1226         .reset          = smsc95xx_reset,
1227         .rx_fixup       = smsc95xx_rx_fixup,
1228         .tx_fixup       = smsc95xx_tx_fixup,
1229         .status         = smsc95xx_status,
1230         .flags          = FLAG_ETHER | FLAG_SEND_ZLP,
1231 };
1232
1233 static const struct usb_device_id products[] = {
1234         {
1235                 /* SMSC9500 USB Ethernet Device */
1236                 USB_DEVICE(0x0424, 0x9500),
1237                 .driver_info = (unsigned long) &smsc95xx_info,
1238         },
1239         {
1240                 /* SMSC9505 USB Ethernet Device */
1241                 USB_DEVICE(0x0424, 0x9505),
1242                 .driver_info = (unsigned long) &smsc95xx_info,
1243         },
1244         {
1245                 /* SMSC9500A USB Ethernet Device */
1246                 USB_DEVICE(0x0424, 0x9E00),
1247                 .driver_info = (unsigned long) &smsc95xx_info,
1248         },
1249         {
1250                 /* SMSC9505A USB Ethernet Device */
1251                 USB_DEVICE(0x0424, 0x9E01),
1252                 .driver_info = (unsigned long) &smsc95xx_info,
1253         },
1254         {
1255                 /* SMSC9512/9514 USB Hub & Ethernet Device */
1256                 USB_DEVICE(0x0424, 0xec00),
1257                 .driver_info = (unsigned long) &smsc95xx_info,
1258         },
1259         {
1260                 /* SMSC9500 USB Ethernet Device (SAL10) */
1261                 USB_DEVICE(0x0424, 0x9900),
1262                 .driver_info = (unsigned long) &smsc95xx_info,
1263         },
1264         {
1265                 /* SMSC9505 USB Ethernet Device (SAL10) */
1266                 USB_DEVICE(0x0424, 0x9901),
1267                 .driver_info = (unsigned long) &smsc95xx_info,
1268         },
1269         {
1270                 /* SMSC9500A USB Ethernet Device (SAL10) */
1271                 USB_DEVICE(0x0424, 0x9902),
1272                 .driver_info = (unsigned long) &smsc95xx_info,
1273         },
1274         {
1275                 /* SMSC9505A USB Ethernet Device (SAL10) */
1276                 USB_DEVICE(0x0424, 0x9903),
1277                 .driver_info = (unsigned long) &smsc95xx_info,
1278         },
1279         {
1280                 /* SMSC9512/9514 USB Hub & Ethernet Device (SAL10) */
1281                 USB_DEVICE(0x0424, 0x9904),
1282                 .driver_info = (unsigned long) &smsc95xx_info,
1283         },
1284         {
1285                 /* SMSC9500A USB Ethernet Device (HAL) */
1286                 USB_DEVICE(0x0424, 0x9905),
1287                 .driver_info = (unsigned long) &smsc95xx_info,
1288         },
1289         {
1290                 /* SMSC9505A USB Ethernet Device (HAL) */
1291                 USB_DEVICE(0x0424, 0x9906),
1292                 .driver_info = (unsigned long) &smsc95xx_info,
1293         },
1294         {
1295                 /* SMSC9500 USB Ethernet Device (Alternate ID) */
1296                 USB_DEVICE(0x0424, 0x9907),
1297                 .driver_info = (unsigned long) &smsc95xx_info,
1298         },
1299         {
1300                 /* SMSC9500A USB Ethernet Device (Alternate ID) */
1301                 USB_DEVICE(0x0424, 0x9908),
1302                 .driver_info = (unsigned long) &smsc95xx_info,
1303         },
1304         {
1305                 /* SMSC9512/9514 USB Hub & Ethernet Device (Alternate ID) */
1306                 USB_DEVICE(0x0424, 0x9909),
1307                 .driver_info = (unsigned long) &smsc95xx_info,
1308         },
1309         { },            /* END */
1310 };
1311 MODULE_DEVICE_TABLE(usb, products);
1312
1313 static struct usb_driver smsc95xx_driver = {
1314         .name           = "smsc95xx",
1315         .id_table       = products,
1316         .probe          = usbnet_probe,
1317         .suspend        = usbnet_suspend,
1318         .resume         = usbnet_resume,
1319         .disconnect     = usbnet_disconnect,
1320 };
1321
1322 static int __init smsc95xx_init(void)
1323 {
1324         return usb_register(&smsc95xx_driver);
1325 }
1326 module_init(smsc95xx_init);
1327
1328 static void __exit smsc95xx_exit(void)
1329 {
1330         usb_deregister(&smsc95xx_driver);
1331 }
1332 module_exit(smsc95xx_exit);
1333
1334 MODULE_AUTHOR("Nancy Lin");
1335 MODULE_AUTHOR("Steve Glendinning <steve.glendinning@smsc.com>");
1336 MODULE_DESCRIPTION("SMSC95XX USB 2.0 Ethernet Devices");
1337 MODULE_LICENSE("GPL");