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[XFRM]: skb_cow_data() does not set proper owner for new skbs.
[linux-2.6/verdex.git] / drivers / usb / net / catc.c
blobc8be912f24e1a08c6b5f55d97b4201ee3751a3e6
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);
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