Automatic merge of rsync://rsync.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2...
[linux-2.6] / 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->transfer_flags &= ~URB_ASYNC_UNLINK;
387                 urb->status = 0;
388                 catc->netdev->trans_start = jiffies;
389                 catc->stats.tx_errors++;
390                 clear_bit(TX_RUNNING, &catc->flags);
391                 netif_wake_queue(catc->netdev);
392                 return;
393         }
394
395         if (urb->status) {
396                 dbg("tx_done, status %d, length %d", urb->status, urb->actual_length);
397                 return;
398         }
399
400         spin_lock_irqsave(&catc->tx_lock, flags);
401
402         if (catc->tx_ptr)
403                 catc_tx_run(catc);
404         else
405                 clear_bit(TX_RUNNING, &catc->flags);
406
407         netif_wake_queue(catc->netdev);
408
409         spin_unlock_irqrestore(&catc->tx_lock, flags);
410 }
411
412 static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
413 {
414         struct catc *catc = netdev_priv(netdev);
415         unsigned long flags;
416         char *tx_buf;
417
418         spin_lock_irqsave(&catc->tx_lock, flags);
419
420         catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
421         tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
422         *((u16*)tx_buf) = (catc->is_f5u011) ? cpu_to_be16((u16)skb->len) : cpu_to_le16((u16)skb->len);
423         memcpy(tx_buf + 2, skb->data, skb->len);
424         catc->tx_ptr += skb->len + 2;
425
426         if (!test_and_set_bit(TX_RUNNING, &catc->flags))
427                 catc_tx_run(catc);
428
429         if ((catc->is_f5u011 && catc->tx_ptr)
430              || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
431                 netif_stop_queue(netdev);
432
433         spin_unlock_irqrestore(&catc->tx_lock, flags);
434
435         catc->stats.tx_bytes += skb->len;
436         catc->stats.tx_packets++;
437
438         dev_kfree_skb(skb);
439
440         return 0;
441 }
442
443 static void catc_tx_timeout(struct net_device *netdev)
444 {
445         struct catc *catc = netdev_priv(netdev);
446
447         warn("Transmit timed out.");
448         catc->tx_urb->transfer_flags |= URB_ASYNC_UNLINK;
449         usb_unlink_urb(catc->tx_urb);
450 }
451
452 /*
453  * Control messages.
454  */
455
456 static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
457 {
458         int retval = usb_control_msg(catc->usbdev,
459                 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
460                  request, 0x40 | dir, value, index, buf, len, 1000);
461         return retval < 0 ? retval : 0;
462 }
463
464 static void catc_ctrl_run(struct catc *catc)
465 {
466         struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
467         struct usb_device *usbdev = catc->usbdev;
468         struct urb *urb = catc->ctrl_urb;
469         struct usb_ctrlrequest *dr = &catc->ctrl_dr;
470         int status;
471
472         dr->bRequest = q->request;
473         dr->bRequestType = 0x40 | q->dir;
474         dr->wValue = cpu_to_le16(q->value);
475         dr->wIndex = cpu_to_le16(q->index);
476         dr->wLength = cpu_to_le16(q->len);
477
478         urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
479         urb->transfer_buffer_length = q->len;
480         urb->transfer_buffer = catc->ctrl_buf;
481         urb->setup_packet = (void *) dr;
482         urb->dev = usbdev;
483
484         if (!q->dir && q->buf && q->len)
485                 memcpy(catc->ctrl_buf, q->buf, q->len);
486
487         if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL)))
488                 err("submit(ctrl_urb) status %d", status);
489 }
490
491 static void catc_ctrl_done(struct urb *urb, struct pt_regs *regs)
492 {
493         struct catc *catc = urb->context;
494         struct ctrl_queue *q;
495         unsigned long flags;
496
497         if (urb->status)
498                 dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length);
499
500         spin_lock_irqsave(&catc->ctrl_lock, flags);
501
502         q = catc->ctrl_queue + catc->ctrl_tail;
503
504         if (q->dir) {
505                 if (q->buf && q->len)
506                         memcpy(q->buf, catc->ctrl_buf, q->len);
507                 else
508                         q->buf = catc->ctrl_buf;
509         }
510
511         if (q->callback)
512                 q->callback(catc, q);
513
514         catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
515
516         if (catc->ctrl_head != catc->ctrl_tail)
517                 catc_ctrl_run(catc);
518         else
519                 clear_bit(CTRL_RUNNING, &catc->flags);
520
521         spin_unlock_irqrestore(&catc->ctrl_lock, flags);
522 }
523
524 static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
525         u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
526 {
527         struct ctrl_queue *q;
528         int retval = 0;
529         unsigned long flags;
530
531         spin_lock_irqsave(&catc->ctrl_lock, flags);
532         
533         q = catc->ctrl_queue + catc->ctrl_head;
534
535         q->dir = dir;
536         q->request = request;
537         q->value = value;
538         q->index = index;
539         q->buf = buf;
540         q->len = len;
541         q->callback = callback;
542
543         catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
544
545         if (catc->ctrl_head == catc->ctrl_tail) {
546                 err("ctrl queue full");
547                 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
548                 retval = -1;
549         }
550
551         if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
552                 catc_ctrl_run(catc);
553
554         spin_unlock_irqrestore(&catc->ctrl_lock, flags);
555
556         return retval;
557 }
558
559 /*
560  * Statistics.
561  */
562
563 static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
564 {
565         int index = q->index - EthStats;
566         u16 data, last;
567
568         catc->stats_buf[index] = *((char *)q->buf);
569
570         if (index & 1)
571                 return;
572
573         data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
574         last = catc->stats_vals[index >> 1];
575
576         switch (index) {
577                 case TxSingleColl:
578                 case TxMultiColl:
579                         catc->stats.collisions += data - last;
580                         break;
581                 case TxExcessColl:
582                         catc->stats.tx_aborted_errors += data - last;
583                         catc->stats.tx_errors += data - last;
584                         break;
585                 case RxFramErr:
586                         catc->stats.rx_frame_errors += data - last;
587                         catc->stats.rx_errors += data - last;
588                         break;
589         }
590
591         catc->stats_vals[index >> 1] = data;
592 }
593
594 static void catc_stats_timer(unsigned long data)
595 {
596         struct catc *catc = (void *) data;
597         int i;
598
599         for (i = 0; i < 8; i++)
600                 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
601
602         mod_timer(&catc->timer, jiffies + STATS_UPDATE);
603 }
604
605 static struct net_device_stats *catc_get_stats(struct net_device *netdev)
606 {
607         struct catc *catc = netdev_priv(netdev);
608         return &catc->stats;
609 }
610
611 /*
612  * Receive modes. Broadcast, Multicast, Promisc.
613  */
614
615 static void catc_multicast(unsigned char *addr, u8 *multicast)
616 {
617         u32 crc;
618
619         crc = ether_crc_le(6, addr);
620         multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
621 }
622
623 static void catc_set_multicast_list(struct net_device *netdev)
624 {
625         struct catc *catc = netdev_priv(netdev);
626         struct dev_mc_list *mc;
627         u8 broadcast[6];
628         u8 rx = RxEnable | RxPolarity | RxMultiCast;
629         int i;
630
631         memset(broadcast, 0xff, 6);
632         memset(catc->multicast, 0, 64);
633
634         catc_multicast(broadcast, catc->multicast);
635         catc_multicast(netdev->dev_addr, catc->multicast);
636
637         if (netdev->flags & IFF_PROMISC) {
638                 memset(catc->multicast, 0xff, 64);
639                 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
640         } 
641
642         if (netdev->flags & IFF_ALLMULTI) {
643                 memset(catc->multicast, 0xff, 64);
644         } else {
645                 for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) {
646                         u32 crc = ether_crc_le(6, mc->dmi_addr);
647                         if (!catc->is_f5u011) {
648                                 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
649                         } else {
650                                 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
651                         }
652                 }
653         }
654         if (!catc->is_f5u011) {
655                 catc_set_reg_async(catc, RxUnit, rx);
656                 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
657         } else {
658                 f5u011_mchash_async(catc, catc->multicast);
659                 if (catc->rxmode[0] != rx) {
660                         catc->rxmode[0] = rx;
661                         dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]);
662                         f5u011_rxmode_async(catc, catc->rxmode);
663                 }
664         }
665 }
666
667 static void catc_get_drvinfo(struct net_device *dev,
668                              struct ethtool_drvinfo *info)
669 {
670         struct catc *catc = netdev_priv(dev);
671         strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
672         strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
673         usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info);
674 }
675
676 static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
677 {
678         struct catc *catc = netdev_priv(dev);
679         if (!catc->is_f5u011)
680                 return -EOPNOTSUPP;
681
682         cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP;
683         cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP;
684         cmd->speed = SPEED_10;
685         cmd->duplex = DUPLEX_HALF;
686         cmd->port = PORT_TP; 
687         cmd->phy_address = 0;
688         cmd->transceiver = XCVR_INTERNAL;
689         cmd->autoneg = AUTONEG_DISABLE;
690         cmd->maxtxpkt = 1;
691         cmd->maxrxpkt = 1;
692         return 0;
693 }
694
695 static struct ethtool_ops ops = {
696         .get_drvinfo = catc_get_drvinfo,
697         .get_settings = catc_get_settings,
698         .get_link = ethtool_op_get_link
699 };
700
701 /*
702  * Open, close.
703  */
704
705 static int catc_open(struct net_device *netdev)
706 {
707         struct catc *catc = netdev_priv(netdev);
708         int status;
709
710         catc->irq_urb->dev = catc->usbdev;
711         if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) {
712                 err("submit(irq_urb) status %d", status);
713                 return -1;
714         }
715
716         netif_start_queue(netdev);
717
718         if (!catc->is_f5u011)
719                 mod_timer(&catc->timer, jiffies + STATS_UPDATE);
720
721         return 0;
722 }
723
724 static int catc_stop(struct net_device *netdev)
725 {
726         struct catc *catc = netdev_priv(netdev);
727
728         netif_stop_queue(netdev);
729
730         if (!catc->is_f5u011)
731                 del_timer_sync(&catc->timer);
732
733         usb_kill_urb(catc->rx_urb);
734         usb_kill_urb(catc->tx_urb);
735         usb_kill_urb(catc->irq_urb);
736         usb_kill_urb(catc->ctrl_urb);
737
738         return 0;
739 }
740
741 /*
742  * USB probe, disconnect.
743  */
744
745 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
746 {
747         struct usb_device *usbdev = interface_to_usbdev(intf);
748         struct net_device *netdev;
749         struct catc *catc;
750         u8 broadcast[6];
751         int i, pktsz;
752
753         if (usb_set_interface(usbdev,
754                         intf->altsetting->desc.bInterfaceNumber, 1)) {
755                 err("Can't set altsetting 1.");
756                 return -EIO;
757         }
758
759         netdev = alloc_etherdev(sizeof(struct catc));
760         if (!netdev)
761                 return -ENOMEM;
762
763         catc = netdev_priv(netdev);
764
765         netdev->open = catc_open;
766         netdev->hard_start_xmit = catc_hard_start_xmit;
767         netdev->stop = catc_stop;
768         netdev->get_stats = catc_get_stats;
769         netdev->tx_timeout = catc_tx_timeout;
770         netdev->watchdog_timeo = TX_TIMEOUT;
771         netdev->set_multicast_list = catc_set_multicast_list;
772         SET_ETHTOOL_OPS(netdev, &ops);
773
774         catc->usbdev = usbdev;
775         catc->netdev = netdev;
776
777         spin_lock_init(&catc->tx_lock);
778         spin_lock_init(&catc->ctrl_lock);
779
780         init_timer(&catc->timer);
781         catc->timer.data = (long) catc;
782         catc->timer.function = catc_stats_timer;
783
784         catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
785         catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
786         catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
787         catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
788         if ((!catc->ctrl_urb) || (!catc->tx_urb) || 
789             (!catc->rx_urb) || (!catc->irq_urb)) {
790                 err("No free urbs available.");
791                 if (catc->ctrl_urb)
792                         usb_free_urb(catc->ctrl_urb);
793                 if (catc->tx_urb)
794                         usb_free_urb(catc->tx_urb);
795                 if (catc->rx_urb)
796                         usb_free_urb(catc->rx_urb);
797                 if (catc->irq_urb)
798                         usb_free_urb(catc->irq_urb);
799                 free_netdev(netdev);
800                 return -ENOMEM;
801         }
802
803         /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
804         if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 && 
805             le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
806             le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
807                 dbg("Testing for f5u011");
808                 catc->is_f5u011 = 1;            
809                 atomic_set(&catc->recq_sz, 0);
810                 pktsz = RX_PKT_SZ;
811         } else {
812                 pktsz = RX_MAX_BURST * (PKT_SZ + 2);
813         }
814         
815         usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
816                 NULL, NULL, 0, catc_ctrl_done, catc);
817
818         usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
819                 NULL, 0, catc_tx_done, catc);
820
821         usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
822                 catc->rx_buf, pktsz, catc_rx_done, catc);
823
824         usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
825                 catc->irq_buf, 2, catc_irq_done, catc, 1);
826
827         if (!catc->is_f5u011) {
828                 dbg("Checking memory size\n");
829
830                 i = 0x12345678;
831                 catc_write_mem(catc, 0x7a80, &i, 4);
832                 i = 0x87654321; 
833                 catc_write_mem(catc, 0xfa80, &i, 4);
834                 catc_read_mem(catc, 0x7a80, &i, 4);
835           
836                 switch (i) {
837                 case 0x12345678:
838                         catc_set_reg(catc, TxBufCount, 8);
839                         catc_set_reg(catc, RxBufCount, 32);
840                         dbg("64k Memory\n");
841                         break;
842                 default:
843                         warn("Couldn't detect memory size, assuming 32k");
844                 case 0x87654321:
845                         catc_set_reg(catc, TxBufCount, 4);
846                         catc_set_reg(catc, RxBufCount, 16);
847                         dbg("32k Memory\n");
848                         break;
849                 }
850           
851                 dbg("Getting MAC from SEEROM.");
852           
853                 catc_get_mac(catc, netdev->dev_addr);
854                 
855                 dbg("Setting MAC into registers.");
856           
857                 for (i = 0; i < 6; i++)
858                         catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
859                 
860                 dbg("Filling the multicast list.");
861           
862                 memset(broadcast, 0xff, 6);
863                 catc_multicast(broadcast, catc->multicast);
864                 catc_multicast(netdev->dev_addr, catc->multicast);
865                 catc_write_mem(catc, 0xfa80, catc->multicast, 64);
866                 
867                 dbg("Clearing error counters.");
868                 
869                 for (i = 0; i < 8; i++)
870                         catc_set_reg(catc, EthStats + i, 0);
871                 catc->last_stats = jiffies;
872                 
873                 dbg("Enabling.");
874                 
875                 catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
876                 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
877                 catc_set_reg(catc, LEDCtrl, LEDLink);
878                 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
879         } else {
880                 dbg("Performing reset\n");
881                 catc_reset(catc);
882                 catc_get_mac(catc, netdev->dev_addr);
883                 
884                 dbg("Setting RX Mode");
885                 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
886                 catc->rxmode[1] = 0;
887                 f5u011_rxmode(catc, catc->rxmode);
888         }
889         dbg("Init done.");
890         printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ",
891                netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
892                usbdev->bus->bus_name, usbdev->devpath);
893         for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
894         printk("%2.2x.\n", netdev->dev_addr[i]);
895         usb_set_intfdata(intf, catc);
896
897         SET_NETDEV_DEV(netdev, &intf->dev);
898         if (register_netdev(netdev) != 0) {
899                 usb_set_intfdata(intf, NULL);
900                 usb_free_urb(catc->ctrl_urb);
901                 usb_free_urb(catc->tx_urb);
902                 usb_free_urb(catc->rx_urb);
903                 usb_free_urb(catc->irq_urb);
904                 free_netdev(netdev);
905                 return -EIO;
906         }
907         return 0;
908 }
909
910 static void catc_disconnect(struct usb_interface *intf)
911 {
912         struct catc *catc = usb_get_intfdata(intf);
913
914         usb_set_intfdata(intf, NULL);
915         if (catc) {
916                 unregister_netdev(catc->netdev);
917                 usb_free_urb(catc->ctrl_urb);
918                 usb_free_urb(catc->tx_urb);
919                 usb_free_urb(catc->rx_urb);
920                 usb_free_urb(catc->irq_urb);
921                 free_netdev(catc->netdev);
922         }
923 }
924
925 /*
926  * Module functions and tables.
927  */
928
929 static struct usb_device_id catc_id_table [] = {
930         { USB_DEVICE(0x0423, 0xa) },    /* CATC Netmate, Belkin F5U011 */
931         { USB_DEVICE(0x0423, 0xc) },    /* CATC Netmate II, Belkin F5U111 */
932         { USB_DEVICE(0x08d1, 0x1) },    /* smartBridges smartNIC */
933         { }
934 };
935
936 MODULE_DEVICE_TABLE(usb, catc_id_table);
937
938 static struct usb_driver catc_driver = {
939         .owner =        THIS_MODULE,
940         .name =         driver_name,
941         .probe =        catc_probe,
942         .disconnect =   catc_disconnect,
943         .id_table =     catc_id_table,
944 };
945
946 static int __init catc_init(void)
947 {
948         int result = usb_register(&catc_driver);
949         if (result == 0)
950                 info(DRIVER_VERSION " " DRIVER_DESC);
951         return result;
952 }
953
954 static void __exit catc_exit(void)
955 {
956         usb_deregister(&catc_driver);
957 }
958
959 module_init(catc_init);
960 module_exit(catc_exit);