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[PATCH] cpuset procfs warning fix
[linux-2.6/verdex.git] / drivers / usb / net / catc.c
blob4852012735f66c207030abb7676136ff43a0f3cd
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)
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)
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, GFP_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)
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)
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 usb_free_urb(catc->ctrl_urb);
790 usb_free_urb(catc->tx_urb);
791 usb_free_urb(catc->rx_urb);
792 usb_free_urb(catc->irq_urb);
793 free_netdev(netdev);
794 return -ENOMEM;
795 }
796
797 /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
798 if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 &&
799 le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
800 le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
801 dbg("Testing for f5u011");
802 catc->is_f5u011 = 1;
803 atomic_set(&catc->recq_sz, 0);
804 pktsz = RX_PKT_SZ;
805 } else {
806 pktsz = RX_MAX_BURST * (PKT_SZ + 2);
807 }
808
809 usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
810 NULL, NULL, 0, catc_ctrl_done, catc);
811
812 usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
813 NULL, 0, catc_tx_done, catc);
814
815 usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
816 catc->rx_buf, pktsz, catc_rx_done, catc);
817
818 usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
819 catc->irq_buf, 2, catc_irq_done, catc, 1);
820
821 if (!catc->is_f5u011) {
822 dbg("Checking memory size\n");
823
824 i = 0x12345678;
825 catc_write_mem(catc, 0x7a80, &i, 4);
826 i = 0x87654321;
827 catc_write_mem(catc, 0xfa80, &i, 4);
828 catc_read_mem(catc, 0x7a80, &i, 4);
829
830 switch (i) {
831 case 0x12345678:
832 catc_set_reg(catc, TxBufCount, 8);
833 catc_set_reg(catc, RxBufCount, 32);
834 dbg("64k Memory\n");
835 break;
836 default:
837 warn("Couldn't detect memory size, assuming 32k");
838 case 0x87654321:
839 catc_set_reg(catc, TxBufCount, 4);
840 catc_set_reg(catc, RxBufCount, 16);
841 dbg("32k Memory\n");
842 break;
843 }
844
845 dbg("Getting MAC from SEEROM.");
846
847 catc_get_mac(catc, netdev->dev_addr);
848
849 dbg("Setting MAC into registers.");
850
851 for (i = 0; i < 6; i++)
852 catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
853
854 dbg("Filling the multicast list.");
855
856 memset(broadcast, 0xff, 6);
857 catc_multicast(broadcast, catc->multicast);
858 catc_multicast(netdev->dev_addr, catc->multicast);
859 catc_write_mem(catc, 0xfa80, catc->multicast, 64);
860
861 dbg("Clearing error counters.");
862
863 for (i = 0; i < 8; i++)
864 catc_set_reg(catc, EthStats + i, 0);
865 catc->last_stats = jiffies;
866
867 dbg("Enabling.");
868
869 catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
870 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
871 catc_set_reg(catc, LEDCtrl, LEDLink);
872 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
873 } else {
874 dbg("Performing reset\n");
875 catc_reset(catc);
876 catc_get_mac(catc, netdev->dev_addr);
877
878 dbg("Setting RX Mode");
879 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
880 catc->rxmode[1] = 0;
881 f5u011_rxmode(catc, catc->rxmode);
882 }
883 dbg("Init done.");
884 printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ",
885 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
886 usbdev->bus->bus_name, usbdev->devpath);
887 for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
888 printk("%2.2x.\n", netdev->dev_addr[i]);
889 usb_set_intfdata(intf, catc);
890
891 SET_NETDEV_DEV(netdev, &intf->dev);
892 if (register_netdev(netdev) != 0) {
893 usb_set_intfdata(intf, NULL);
894 usb_free_urb(catc->ctrl_urb);
895 usb_free_urb(catc->tx_urb);
896 usb_free_urb(catc->rx_urb);
897 usb_free_urb(catc->irq_urb);
898 free_netdev(netdev);
899 return -EIO;
900 }
901 return 0;
902 }
903
904 static void catc_disconnect(struct usb_interface *intf)
905 {
906 struct catc *catc = usb_get_intfdata(intf);
907
908 usb_set_intfdata(intf, NULL);
909 if (catc) {
910 unregister_netdev(catc->netdev);
911 usb_free_urb(catc->ctrl_urb);
912 usb_free_urb(catc->tx_urb);
913 usb_free_urb(catc->rx_urb);
914 usb_free_urb(catc->irq_urb);
915 free_netdev(catc->netdev);
916 }
917 }
918
919 /*
920 * Module functions and tables.
921 */
922
923 static struct usb_device_id catc_id_table [] = {
924 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */
925 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */
926 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */
927 { }
928 };
929
930 MODULE_DEVICE_TABLE(usb, catc_id_table);
931
932 static struct usb_driver catc_driver = {
933 .name = driver_name,
934 .probe = catc_probe,
935 .disconnect = catc_disconnect,
936 .id_table = catc_id_table,
937 };
938
939 static int __init catc_init(void)
940 {
941 int result = usb_register(&catc_driver);
942 if (result == 0)
943 info(DRIVER_VERSION " " DRIVER_DESC);
944 return result;
945 }
946
947 static void __exit catc_exit(void)
948 {
949 usb_deregister(&catc_driver);
950 }
951
952 module_init(catc_init);
953 module_exit(catc_exit);
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