[PATCH] USB: remove .owner field from struct usb_driver
[linux-2.6.git] / drivers / usb / net / catc.c
1 /*
2  *  Copyright (c) 2001 Vojtech Pavlik
3  *
4  *  CATC EL1210A NetMate USB Ethernet driver
5  *
6  *  Sponsored by SuSE
7  *
8  *  Based on the work of
9  *              Donald Becker
10  * 
11  *  Old chipset support added by Simon Evans <spse@secret.org.uk> 2002
12  *    - adds support for Belkin F5U011
13  */
14
15 /*
16  * This program is free software; you can redistribute it and/or modify
17  * it under the terms of the GNU General Public License as published by
18  * the Free Software Foundation; either version 2 of the License, or 
19  * (at your option) any later version.
20  * 
21  * This program is distributed in the hope that it will be useful,
22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
24  * GNU General Public License for more details.
25  * 
26  * You should have received a copy of the GNU General Public License
27  * along with this program; if not, write to the Free Software
28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
29  * 
30  * Should you need to contact me, the author, you can do so either by
31  * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
32  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
33  */
34
35 #include <linux/init.h>
36 #include <linux/module.h>
37 #include <linux/kernel.h>
38 #include <linux/string.h>
39 #include <linux/slab.h>
40 #include <linux/netdevice.h>
41 #include <linux/etherdevice.h>
42 #include <linux/skbuff.h>
43 #include <linux/spinlock.h>
44 #include <linux/ethtool.h>
45 #include <linux/crc32.h>
46 #include <linux/bitops.h>
47 #include <asm/uaccess.h>
48
49 #undef DEBUG
50
51 #include <linux/usb.h>
52
53 /*
54  * Version information.
55  */
56
57 #define DRIVER_VERSION "v2.8"
58 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>"
59 #define DRIVER_DESC "CATC EL1210A NetMate USB Ethernet driver"
60 #define SHORT_DRIVER_DESC "EL1210A NetMate USB Ethernet"
61
62 MODULE_AUTHOR(DRIVER_AUTHOR);
63 MODULE_DESCRIPTION(DRIVER_DESC);
64 MODULE_LICENSE("GPL");
65
66 static const char driver_name[] = "catc";
67
68 /*
69  * Some defines.
70  */ 
71
72 #define STATS_UPDATE            (HZ)    /* Time between stats updates */
73 #define TX_TIMEOUT              (5*HZ)  /* Max time the queue can be stopped */
74 #define PKT_SZ                  1536    /* Max Ethernet packet size */
75 #define RX_MAX_BURST            15      /* Max packets per rx buffer (> 0, < 16) */
76 #define TX_MAX_BURST            15      /* Max full sized packets per tx buffer (> 0) */
77 #define CTRL_QUEUE              16      /* Max control requests in flight (power of two) */
78 #define RX_PKT_SZ               1600    /* Max size of receive packet for F5U011 */
79
80 /*
81  * Control requests.
82  */
83
84 enum control_requests {
85         ReadMem =       0xf1,
86         GetMac =        0xf2,
87         Reset =         0xf4,
88         SetMac =        0xf5,
89         SetRxMode =     0xf5,  /* F5U011 only */
90         WriteROM =      0xf8,
91         SetReg =        0xfa,
92         GetReg =        0xfb,
93         WriteMem =      0xfc,
94         ReadROM =       0xfd,
95 };
96
97 /*
98  * Registers.
99  */
100
101 enum register_offsets {
102         TxBufCount =    0x20,
103         RxBufCount =    0x21,
104         OpModes =       0x22,
105         TxQed =         0x23,
106         RxQed =         0x24,
107         MaxBurst =      0x25,
108         RxUnit =        0x60,
109         EthStatus =     0x61,
110         StationAddr0 =  0x67,
111         EthStats =      0x69,
112         LEDCtrl =       0x81,
113 };
114
115 enum eth_stats {
116         TxSingleColl =  0x00,
117         TxMultiColl =   0x02,
118         TxExcessColl =  0x04,
119         RxFramErr =     0x06,
120 };
121
122 enum op_mode_bits {
123         Op3MemWaits =   0x03,
124         OpLenInclude =  0x08,
125         OpRxMerge =     0x10,
126         OpTxMerge =     0x20,
127         OpWin95bugfix = 0x40,
128         OpLoopback =    0x80,
129 };
130
131 enum rx_filter_bits {
132         RxEnable =      0x01,
133         RxPolarity =    0x02,
134         RxForceOK =     0x04,
135         RxMultiCast =   0x08,
136         RxPromisc =     0x10,
137         AltRxPromisc =  0x20, /* F5U011 uses different bit */
138 };
139
140 enum led_values {
141         LEDFast =       0x01,
142         LEDSlow =       0x02,
143         LEDFlash =      0x03,
144         LEDPulse =      0x04,
145         LEDLink =       0x08,
146 };
147
148 enum link_status {
149         LinkNoChange = 0,
150         LinkGood     = 1,
151         LinkBad      = 2
152 };
153
154 /*
155  * The catc struct.
156  */
157
158 #define CTRL_RUNNING    0
159 #define RX_RUNNING      1
160 #define TX_RUNNING      2
161
162 struct catc {
163         struct net_device *netdev;
164         struct usb_device *usbdev;
165
166         struct net_device_stats stats;
167         unsigned long flags;
168
169         unsigned int tx_ptr, tx_idx;
170         unsigned int ctrl_head, ctrl_tail;
171         spinlock_t tx_lock, ctrl_lock;
172
173         u8 tx_buf[2][TX_MAX_BURST * (PKT_SZ + 2)];
174         u8 rx_buf[RX_MAX_BURST * (PKT_SZ + 2)];
175         u8 irq_buf[2];
176         u8 ctrl_buf[64];
177         struct usb_ctrlrequest ctrl_dr;
178
179         struct timer_list timer;
180         u8 stats_buf[8];
181         u16 stats_vals[4];
182         unsigned long last_stats;
183
184         u8 multicast[64];
185
186         struct ctrl_queue {
187                 u8 dir;
188                 u8 request;
189                 u16 value;
190                 u16 index;
191                 void *buf;
192                 int len;
193                 void (*callback)(struct catc *catc, struct ctrl_queue *q);
194         } ctrl_queue[CTRL_QUEUE];
195
196         struct urb *tx_urb, *rx_urb, *irq_urb, *ctrl_urb;
197
198         u8 is_f5u011;   /* Set if device is an F5U011 */
199         u8 rxmode[2];   /* Used for F5U011 */
200         atomic_t recq_sz; /* Used for F5U011 - counter of waiting rx packets */
201 };
202
203 /*
204  * Useful macros.
205  */
206
207 #define catc_get_mac(catc, mac)                         catc_ctrl_msg(catc, USB_DIR_IN,  GetMac, 0, 0, mac,  6)
208 #define catc_reset(catc)                                catc_ctrl_msg(catc, USB_DIR_OUT, Reset, 0, 0, NULL, 0)
209 #define catc_set_reg(catc, reg, val)                    catc_ctrl_msg(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0)
210 #define catc_get_reg(catc, reg, buf)                    catc_ctrl_msg(catc, USB_DIR_IN,  GetReg, 0, reg, buf, 1)
211 #define catc_write_mem(catc, addr, buf, size)           catc_ctrl_msg(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size)
212 #define catc_read_mem(catc, addr, buf, size)            catc_ctrl_msg(catc, USB_DIR_IN,  ReadMem, 0, addr, buf, size)
213
214 #define f5u011_rxmode(catc, rxmode)                     catc_ctrl_msg(catc, USB_DIR_OUT, SetRxMode, 0, 1, rxmode, 2)
215 #define f5u011_rxmode_async(catc, rxmode)               catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 1, &rxmode, 2, NULL)
216 #define f5u011_mchash_async(catc, hash)                 catc_ctrl_async(catc, USB_DIR_OUT, SetRxMode, 0, 2, &hash, 8, NULL)
217
218 #define catc_set_reg_async(catc, reg, val)              catc_ctrl_async(catc, USB_DIR_OUT, SetReg, val, reg, NULL, 0, NULL)
219 #define catc_get_reg_async(catc, reg, cb)               catc_ctrl_async(catc, USB_DIR_IN, GetReg, 0, reg, NULL, 1, cb)
220 #define catc_write_mem_async(catc, addr, buf, size)     catc_ctrl_async(catc, USB_DIR_OUT, WriteMem, 0, addr, buf, size, NULL)
221
222 /*
223  * Receive routines.
224  */
225
226 static void catc_rx_done(struct urb *urb, struct pt_regs *regs)
227 {
228         struct catc *catc = urb->context;
229         u8 *pkt_start = urb->transfer_buffer;
230         struct sk_buff *skb;
231         int pkt_len, pkt_offset = 0;
232
233         if (!catc->is_f5u011) {
234                 clear_bit(RX_RUNNING, &catc->flags);
235                 pkt_offset = 2;
236         }
237
238         if (urb->status) {
239                 dbg("rx_done, status %d, length %d", urb->status, urb->actual_length);
240                 return;
241         }
242
243         do {
244                 if(!catc->is_f5u011) {
245                         pkt_len = le16_to_cpup((__le16*)pkt_start);
246                         if (pkt_len > urb->actual_length) {
247                                 catc->stats.rx_length_errors++;
248                                 catc->stats.rx_errors++;
249                                 break;
250                         }
251                 } else {
252                         pkt_len = urb->actual_length;
253                 }
254
255                 if (!(skb = dev_alloc_skb(pkt_len)))
256                         return;
257
258                 skb->dev = catc->netdev;
259                 eth_copy_and_sum(skb, pkt_start + pkt_offset, pkt_len, 0);
260                 skb_put(skb, pkt_len);
261
262                 skb->protocol = eth_type_trans(skb, catc->netdev);
263                 netif_rx(skb);
264
265                 catc->stats.rx_packets++;
266                 catc->stats.rx_bytes += pkt_len;
267
268                 /* F5U011 only does one packet per RX */
269                 if (catc->is_f5u011)
270                         break;
271                 pkt_start += (((pkt_len + 1) >> 6) + 1) << 6;
272
273         } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length);
274
275         catc->netdev->last_rx = jiffies;
276
277         if (catc->is_f5u011) {
278                 if (atomic_read(&catc->recq_sz)) {
279                         int status;
280                         atomic_dec(&catc->recq_sz);
281                         dbg("getting extra packet");
282                         urb->dev = catc->usbdev;
283                         if ((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
284                                 dbg("submit(rx_urb) status %d", status);
285                         }
286                 } else {
287                         clear_bit(RX_RUNNING, &catc->flags);
288                 }
289         }
290 }
291
292 static void catc_irq_done(struct urb *urb, struct pt_regs *regs)
293 {
294         struct catc *catc = urb->context;
295         u8 *data = urb->transfer_buffer;
296         int status;
297         unsigned int hasdata = 0, linksts = LinkNoChange;
298
299         if (!catc->is_f5u011) {
300                 hasdata = data[1] & 0x80;
301                 if (data[1] & 0x40)
302                         linksts = LinkGood;
303                 else if (data[1] & 0x20)
304                         linksts = LinkBad;
305         } else {
306                 hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff);
307                 if (data[0] == 0x90)
308                         linksts = LinkGood;
309                 else if (data[0] == 0xA0)
310                         linksts = LinkBad;
311         }
312
313         switch (urb->status) {
314         case 0:                 /* success */
315                 break;
316         case -ECONNRESET:       /* unlink */
317         case -ENOENT:
318         case -ESHUTDOWN:
319                 return;
320         /* -EPIPE:  should clear the halt */
321         default:                /* error */
322                 dbg("irq_done, status %d, data %02x %02x.", urb->status, data[0], data[1]);
323                 goto resubmit;
324         }
325
326         if (linksts == LinkGood) {
327                 netif_carrier_on(catc->netdev);
328                 dbg("link ok");
329         }
330
331         if (linksts == LinkBad) {
332                 netif_carrier_off(catc->netdev);
333                 dbg("link bad");
334         }
335
336         if (hasdata) {
337                 if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
338                         if (catc->is_f5u011)
339                                 atomic_inc(&catc->recq_sz);
340                 } else {
341                         catc->rx_urb->dev = catc->usbdev;
342                         if ((status = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) {
343                                 err("submit(rx_urb) status %d", status);
344                         }
345                 } 
346         }
347 resubmit:
348         status = usb_submit_urb (urb, SLAB_ATOMIC);
349         if (status)
350                 err ("can't resubmit intr, %s-%s, status %d",
351                                 catc->usbdev->bus->bus_name,
352                                 catc->usbdev->devpath, status);
353 }
354
355 /*
356  * Transmit routines.
357  */
358
359 static void catc_tx_run(struct catc *catc)
360 {
361         int status;
362
363         if (catc->is_f5u011)
364                 catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
365
366         catc->tx_urb->transfer_buffer_length = catc->tx_ptr;
367         catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx];
368         catc->tx_urb->dev = catc->usbdev;
369
370         if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0)
371                 err("submit(tx_urb), status %d", status);
372
373         catc->tx_idx = !catc->tx_idx;
374         catc->tx_ptr = 0;
375
376         catc->netdev->trans_start = jiffies;
377 }
378
379 static void catc_tx_done(struct urb *urb, struct pt_regs *regs)
380 {
381         struct catc *catc = urb->context;
382         unsigned long flags;
383
384         if (urb->status == -ECONNRESET) {
385                 dbg("Tx Reset.");
386                 urb->status = 0;
387                 catc->netdev->trans_start = jiffies;
388                 catc->stats.tx_errors++;
389                 clear_bit(TX_RUNNING, &catc->flags);
390                 netif_wake_queue(catc->netdev);
391                 return;
392         }
393
394         if (urb->status) {
395                 dbg("tx_done, status %d, length %d", urb->status, urb->actual_length);
396                 return;
397         }
398
399         spin_lock_irqsave(&catc->tx_lock, flags);
400
401         if (catc->tx_ptr)
402                 catc_tx_run(catc);
403         else
404                 clear_bit(TX_RUNNING, &catc->flags);
405
406         netif_wake_queue(catc->netdev);
407
408         spin_unlock_irqrestore(&catc->tx_lock, flags);
409 }
410
411 static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
412 {
413         struct catc *catc = netdev_priv(netdev);
414         unsigned long flags;
415         char *tx_buf;
416
417         spin_lock_irqsave(&catc->tx_lock, flags);
418
419         catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
420         tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
421         *((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len);
422         memcpy(tx_buf + 2, skb->data, skb->len);
423         catc->tx_ptr += skb->len + 2;
424
425         if (!test_and_set_bit(TX_RUNNING, &catc->flags))
426                 catc_tx_run(catc);
427
428         if ((catc->is_f5u011 && catc->tx_ptr)
429              || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
430                 netif_stop_queue(netdev);
431
432         spin_unlock_irqrestore(&catc->tx_lock, flags);
433
434         catc->stats.tx_bytes += skb->len;
435         catc->stats.tx_packets++;
436
437         dev_kfree_skb(skb);
438
439         return 0;
440 }
441
442 static void catc_tx_timeout(struct net_device *netdev)
443 {
444         struct catc *catc = netdev_priv(netdev);
445
446         warn("Transmit timed out.");
447         usb_unlink_urb(catc->tx_urb);
448 }
449
450 /*
451  * Control messages.
452  */
453
454 static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
455 {
456         int retval = usb_control_msg(catc->usbdev,
457                 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
458                  request, 0x40 | dir, value, index, buf, len, 1000);
459         return retval < 0 ? retval : 0;
460 }
461
462 static void catc_ctrl_run(struct catc *catc)
463 {
464         struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
465         struct usb_device *usbdev = catc->usbdev;
466         struct urb *urb = catc->ctrl_urb;
467         struct usb_ctrlrequest *dr = &catc->ctrl_dr;
468         int status;
469
470         dr->bRequest = q->request;
471         dr->bRequestType = 0x40 | q->dir;
472         dr->wValue = cpu_to_le16(q->value);
473         dr->wIndex = cpu_to_le16(q->index);
474         dr->wLength = cpu_to_le16(q->len);
475
476         urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
477         urb->transfer_buffer_length = q->len;
478         urb->transfer_buffer = catc->ctrl_buf;
479         urb->setup_packet = (void *) dr;
480         urb->dev = usbdev;
481
482         if (!q->dir && q->buf && q->len)
483                 memcpy(catc->ctrl_buf, q->buf, q->len);
484
485         if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL)))
486                 err("submit(ctrl_urb) status %d", status);
487 }
488
489 static void catc_ctrl_done(struct urb *urb, struct pt_regs *regs)
490 {
491         struct catc *catc = urb->context;
492         struct ctrl_queue *q;
493         unsigned long flags;
494
495         if (urb->status)
496                 dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length);
497
498         spin_lock_irqsave(&catc->ctrl_lock, flags);
499
500         q = catc->ctrl_queue + catc->ctrl_tail;
501
502         if (q->dir) {
503                 if (q->buf && q->len)
504                         memcpy(q->buf, catc->ctrl_buf, q->len);
505                 else
506                         q->buf = catc->ctrl_buf;
507         }
508
509         if (q->callback)
510                 q->callback(catc, q);
511
512         catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
513
514         if (catc->ctrl_head != catc->ctrl_tail)
515                 catc_ctrl_run(catc);
516         else
517                 clear_bit(CTRL_RUNNING, &catc->flags);
518
519         spin_unlock_irqrestore(&catc->ctrl_lock, flags);
520 }
521
522 static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
523         u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
524 {
525         struct ctrl_queue *q;
526         int retval = 0;
527         unsigned long flags;
528
529         spin_lock_irqsave(&catc->ctrl_lock, flags);
530         
531         q = catc->ctrl_queue + catc->ctrl_head;
532
533         q->dir = dir;
534         q->request = request;
535         q->value = value;
536         q->index = index;
537         q->buf = buf;
538         q->len = len;
539         q->callback = callback;
540
541         catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
542
543         if (catc->ctrl_head == catc->ctrl_tail) {
544                 err("ctrl queue full");
545                 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
546                 retval = -1;
547         }
548
549         if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
550                 catc_ctrl_run(catc);
551
552         spin_unlock_irqrestore(&catc->ctrl_lock, flags);
553
554         return retval;
555 }
556
557 /*
558  * Statistics.
559  */
560
561 static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
562 {
563         int index = q->index - EthStats;
564         u16 data, last;
565
566         catc->stats_buf[index] = *((char *)q->buf);
567
568         if (index & 1)
569                 return;
570
571         data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
572         last = catc->stats_vals[index >> 1];
573
574         switch (index) {
575                 case TxSingleColl:
576                 case TxMultiColl:
577                         catc->stats.collisions += data - last;
578                         break;
579                 case TxExcessColl:
580                         catc->stats.tx_aborted_errors += data - last;
581                         catc->stats.tx_errors += data - last;
582                         break;
583                 case RxFramErr:
584                         catc->stats.rx_frame_errors += data - last;
585                         catc->stats.rx_errors += data - last;
586                         break;
587         }
588
589         catc->stats_vals[index >> 1] = data;
590 }
591
592 static void catc_stats_timer(unsigned long data)
593 {
594         struct catc *catc = (void *) data;
595         int i;
596
597         for (i = 0; i < 8; i++)
598                 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
599
600         mod_timer(&catc->timer, jiffies + STATS_UPDATE);
601 }
602
603 static struct net_device_stats *catc_get_stats(struct net_device *netdev)
604 {
605         struct catc *catc = netdev_priv(netdev);
606         return &catc->stats;
607 }
608
609 /*
610  * Receive modes. Broadcast, Multicast, Promisc.
611  */
612
613 static void catc_multicast(unsigned char *addr, u8 *multicast)
614 {
615         u32 crc;
616
617         crc = ether_crc_le(6, addr);
618         multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
619 }
620
621 static void catc_set_multicast_list(struct net_device *netdev)
622 {
623         struct catc *catc = netdev_priv(netdev);
624         struct dev_mc_list *mc;
625         u8 broadcast[6];
626         u8 rx = RxEnable | RxPolarity | RxMultiCast;
627         int i;
628
629         memset(broadcast, 0xff, 6);
630         memset(catc->multicast, 0, 64);
631
632         catc_multicast(broadcast, catc->multicast);
633         catc_multicast(netdev->dev_addr, catc->multicast);
634
635         if (netdev->flags & IFF_PROMISC) {
636                 memset(catc->multicast, 0xff, 64);
637                 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
638         } 
639
640         if (netdev->flags & IFF_ALLMULTI) {
641                 memset(catc->multicast, 0xff, 64);
642         } else {
643                 for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) {
644                         u32 crc = ether_crc_le(6, mc->dmi_addr);
645                         if (!catc->is_f5u011) {
646                                 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
647                         } else {
648                                 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
649                         }
650                 }
651         }
652         if (!catc->is_f5u011) {
653                 catc_set_reg_async(catc, RxUnit, rx);
654                 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
655         } else {
656                 f5u011_mchash_async(catc, catc->multicast);
657                 if (catc->rxmode[0] != rx) {
658                         catc->rxmode[0] = rx;
659                         dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]);
660                         f5u011_rxmode_async(catc, catc->rxmode);
661                 }
662         }
663 }
664
665 static void catc_get_drvinfo(struct net_device *dev,
666                              struct ethtool_drvinfo *info)
667 {
668         struct catc *catc = netdev_priv(dev);
669         strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
670         strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
671         usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info);
672 }
673
674 static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
675 {
676         struct catc *catc = netdev_priv(dev);
677         if (!catc->is_f5u011)
678                 return -EOPNOTSUPP;
679
680         cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP;
681         cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP;
682         cmd->speed = SPEED_10;
683         cmd->duplex = DUPLEX_HALF;
684         cmd->port = PORT_TP; 
685         cmd->phy_address = 0;
686         cmd->transceiver = XCVR_INTERNAL;
687         cmd->autoneg = AUTONEG_DISABLE;
688         cmd->maxtxpkt = 1;
689         cmd->maxrxpkt = 1;
690         return 0;
691 }
692
693 static struct ethtool_ops ops = {
694         .get_drvinfo = catc_get_drvinfo,
695         .get_settings = catc_get_settings,
696         .get_link = ethtool_op_get_link
697 };
698
699 /*
700  * Open, close.
701  */
702
703 static int catc_open(struct net_device *netdev)
704 {
705         struct catc *catc = netdev_priv(netdev);
706         int status;
707
708         catc->irq_urb->dev = catc->usbdev;
709         if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) {
710                 err("submit(irq_urb) status %d", status);
711                 return -1;
712         }
713
714         netif_start_queue(netdev);
715
716         if (!catc->is_f5u011)
717                 mod_timer(&catc->timer, jiffies + STATS_UPDATE);
718
719         return 0;
720 }
721
722 static int catc_stop(struct net_device *netdev)
723 {
724         struct catc *catc = netdev_priv(netdev);
725
726         netif_stop_queue(netdev);
727
728         if (!catc->is_f5u011)
729                 del_timer_sync(&catc->timer);
730
731         usb_kill_urb(catc->rx_urb);
732         usb_kill_urb(catc->tx_urb);
733         usb_kill_urb(catc->irq_urb);
734         usb_kill_urb(catc->ctrl_urb);
735
736         return 0;
737 }
738
739 /*
740  * USB probe, disconnect.
741  */
742
743 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
744 {
745         struct usb_device *usbdev = interface_to_usbdev(intf);
746         struct net_device *netdev;
747         struct catc *catc;
748         u8 broadcast[6];
749         int i, pktsz;
750
751         if (usb_set_interface(usbdev,
752                         intf->altsetting->desc.bInterfaceNumber, 1)) {
753                 err("Can't set altsetting 1.");
754                 return -EIO;
755         }
756
757         netdev = alloc_etherdev(sizeof(struct catc));
758         if (!netdev)
759                 return -ENOMEM;
760
761         catc = netdev_priv(netdev);
762
763         netdev->open = catc_open;
764         netdev->hard_start_xmit = catc_hard_start_xmit;
765         netdev->stop = catc_stop;
766         netdev->get_stats = catc_get_stats;
767         netdev->tx_timeout = catc_tx_timeout;
768         netdev->watchdog_timeo = TX_TIMEOUT;
769         netdev->set_multicast_list = catc_set_multicast_list;
770         SET_ETHTOOL_OPS(netdev, &ops);
771
772         catc->usbdev = usbdev;
773         catc->netdev = netdev;
774
775         spin_lock_init(&catc->tx_lock);
776         spin_lock_init(&catc->ctrl_lock);
777
778         init_timer(&catc->timer);
779         catc->timer.data = (long) catc;
780         catc->timer.function = catc_stats_timer;
781
782         catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
783         catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
784         catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
785         catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
786         if ((!catc->ctrl_urb) || (!catc->tx_urb) || 
787             (!catc->rx_urb) || (!catc->irq_urb)) {
788                 err("No free urbs available.");
789                 if (catc->ctrl_urb)
790                         usb_free_urb(catc->ctrl_urb);
791                 if (catc->tx_urb)
792                         usb_free_urb(catc->tx_urb);
793                 if (catc->rx_urb)
794                         usb_free_urb(catc->rx_urb);
795                 if (catc->irq_urb)
796                         usb_free_urb(catc->irq_urb);
797                 free_netdev(netdev);
798                 return -ENOMEM;
799         }
800
801         /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
802         if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && 
803             le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
804             le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
805                 dbg("Testing for f5u011");
806                 catc->is_f5u011 = 1;            
807                 atomic_set(&catc->recq_sz, 0);
808                 pktsz = RX_PKT_SZ;
809         } else {
810                 pktsz = RX_MAX_BURST * (PKT_SZ + 2);
811         }
812         
813         usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
814                 NULL, NULL, 0, catc_ctrl_done, catc);
815
816         usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
817                 NULL, 0, catc_tx_done, catc);
818
819         usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
820                 catc->rx_buf, pktsz, catc_rx_done, catc);
821
822         usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
823                 catc->irq_buf, 2, catc_irq_done, catc, 1);
824
825         if (!catc->is_f5u011) {
826                 dbg("Checking memory size\n");
827
828                 i = 0x12345678;
829                 catc_write_mem(catc, 0x7a80, &i, 4);
830                 i = 0x87654321; 
831                 catc_write_mem(catc, 0xfa80, &i, 4);
832                 catc_read_mem(catc, 0x7a80, &i, 4);
833           
834                 switch (i) {
835                 case 0x12345678:
836                         catc_set_reg(catc, TxBufCount, 8);
837                         catc_set_reg(catc, RxBufCount, 32);
838                         dbg("64k Memory\n");
839                         break;
840                 default:
841                         warn("Couldn't detect memory size, assuming 32k");
842                 case 0x87654321:
843                         catc_set_reg(catc, TxBufCount, 4);
844                         catc_set_reg(catc, RxBufCount, 16);
845                         dbg("32k Memory\n");
846                         break;
847                 }
848           
849                 dbg("Getting MAC from SEEROM.");
850           
851                 catc_get_mac(catc, netdev->dev_addr);
852                 
853                 dbg("Setting MAC into registers.");
854           
855                 for (i = 0; i < 6; i++)
856                         catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
857                 
858                 dbg("Filling the multicast list.");
859           
860                 memset(broadcast, 0xff, 6);
861                 catc_multicast(broadcast, catc->multicast);
862                 catc_multicast(netdev->dev_addr, catc->multicast);
863                 catc_write_mem(catc, 0xfa80, catc->multicast, 64);
864                 
865                 dbg("Clearing error counters.");
866                 
867                 for (i = 0; i < 8; i++)
868                         catc_set_reg(catc, EthStats + i, 0);
869                 catc->last_stats = jiffies;
870                 
871                 dbg("Enabling.");
872                 
873                 catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
874                 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
875                 catc_set_reg(catc, LEDCtrl, LEDLink);
876                 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
877         } else {
878                 dbg("Performing reset\n");
879                 catc_reset(catc);
880                 catc_get_mac(catc, netdev->dev_addr);
881                 
882                 dbg("Setting RX Mode");
883                 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
884                 catc->rxmode[1] = 0;
885                 f5u011_rxmode(catc, catc->rxmode);
886         }
887         dbg("Init done.");
888         printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ",
889                netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
890                usbdev->bus->bus_name, usbdev->devpath);
891         for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
892         printk("%2.2x.\n", netdev->dev_addr[i]);
893         usb_set_intfdata(intf, catc);
894
895         SET_NETDEV_DEV(netdev, &intf->dev);
896         if (register_netdev(netdev) != 0) {
897                 usb_set_intfdata(intf, NULL);
898                 usb_free_urb(catc->ctrl_urb);
899                 usb_free_urb(catc->tx_urb);
900                 usb_free_urb(catc->rx_urb);
901                 usb_free_urb(catc->irq_urb);
902                 free_netdev(netdev);
903                 return -EIO;
904         }
905         return 0;
906 }
907
908 static void catc_disconnect(struct usb_interface *intf)
909 {
910         struct catc *catc = usb_get_intfdata(intf);
911
912         usb_set_intfdata(intf, NULL);
913         if (catc) {
914                 unregister_netdev(catc->netdev);
915                 usb_free_urb(catc->ctrl_urb);
916                 usb_free_urb(catc->tx_urb);
917                 usb_free_urb(catc->rx_urb);
918                 usb_free_urb(catc->irq_urb);
919                 free_netdev(catc->netdev);
920         }
921 }
922
923 /*
924  * Module functions and tables.
925  */
926
927 static struct usb_device_id catc_id_table [] = {
928         { USB_DEVICE(0x0423, 0xa) },    /* CATC Netmate, Belkin F5U011 */
929         { USB_DEVICE(0x0423, 0xc) },    /* CATC Netmate II, Belkin F5U111 */
930         { USB_DEVICE(0x08d1, 0x1) },    /* smartBridges smartNIC */
931         { }
932 };
933
934 MODULE_DEVICE_TABLE(usb, catc_id_table);
935
936 static struct usb_driver catc_driver = {
937         .name =         driver_name,
938         .probe =        catc_probe,
939         .disconnect =   catc_disconnect,
940         .id_table =     catc_id_table,
941 };
942
943 static int __init catc_init(void)
944 {
945         int result = usb_register(&catc_driver);
946         if (result == 0)
947                 info(DRIVER_VERSION " " DRIVER_DESC);
948         return result;
949 }
950
951 static void __exit catc_exit(void)
952 {
953         usb_deregister(&catc_driver);
954 }
955
956 module_init(catc_init);
957 module_exit(catc_exit);