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[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / usb / 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)
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_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len);
259 skb_put(skb, pkt_len);
260
261 skb->protocol = eth_type_trans(skb, catc->netdev);
262 netif_rx(skb);
263
264 catc->stats.rx_packets++;
265 catc->stats.rx_bytes += pkt_len;
266
267 /* F5U011 only does one packet per RX */
268 if (catc->is_f5u011)
269 break;
270 pkt_start += (((pkt_len + 1) >> 6) + 1) << 6;
271
272 } while (pkt_start - (u8 *) urb->transfer_buffer < urb->actual_length);
273
274 catc->netdev->last_rx = jiffies;
275
276 if (catc->is_f5u011) {
277 if (atomic_read(&catc->recq_sz)) {
278 int status;
279 atomic_dec(&catc->recq_sz);
280 dbg("getting extra packet");
281 urb->dev = catc->usbdev;
282 if ((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
283 dbg("submit(rx_urb) status %d", status);
284 }
285 } else {
286 clear_bit(RX_RUNNING, &catc->flags);
287 }
288 }
289 }
290
291 static void catc_irq_done(struct urb *urb)
292 {
293 struct catc *catc = urb->context;
294 u8 *data = urb->transfer_buffer;
295 int status;
296 unsigned int hasdata = 0, linksts = LinkNoChange;
297
298 if (!catc->is_f5u011) {
299 hasdata = data[1] & 0x80;
300 if (data[1] & 0x40)
301 linksts = LinkGood;
302 else if (data[1] & 0x20)
303 linksts = LinkBad;
304 } else {
305 hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff);
306 if (data[0] == 0x90)
307 linksts = LinkGood;
308 else if (data[0] == 0xA0)
309 linksts = LinkBad;
310 }
311
312 switch (urb->status) {
313 case 0: /* success */
314 break;
315 case -ECONNRESET: /* unlink */
316 case -ENOENT:
317 case -ESHUTDOWN:
318 return;
319 /* -EPIPE: should clear the halt */
320 default: /* error */
321 dbg("irq_done, status %d, data %02x %02x.", urb->status, data[0], data[1]);
322 goto resubmit;
323 }
324
325 if (linksts == LinkGood) {
326 netif_carrier_on(catc->netdev);
327 dbg("link ok");
328 }
329
330 if (linksts == LinkBad) {
331 netif_carrier_off(catc->netdev);
332 dbg("link bad");
333 }
334
335 if (hasdata) {
336 if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
337 if (catc->is_f5u011)
338 atomic_inc(&catc->recq_sz);
339 } else {
340 catc->rx_urb->dev = catc->usbdev;
341 if ((status = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) {
342 err("submit(rx_urb) status %d", status);
343 }
344 }
345 }
346 resubmit:
347 status = usb_submit_urb (urb, GFP_ATOMIC);
348 if (status)
349 err ("can't resubmit intr, %s-%s, status %d",
350 catc->usbdev->bus->bus_name,
351 catc->usbdev->devpath, status);
352 }
353
354 /*
355 * Transmit routines.
356 */
357
358 static int catc_tx_run(struct catc *catc)
359 {
360 int status;
361
362 if (catc->is_f5u011)
363 catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
364
365 catc->tx_urb->transfer_buffer_length = catc->tx_ptr;
366 catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx];
367 catc->tx_urb->dev = catc->usbdev;
368
369 if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0)
370 err("submit(tx_urb), status %d", status);
371
372 catc->tx_idx = !catc->tx_idx;
373 catc->tx_ptr = 0;
374
375 catc->netdev->trans_start = jiffies;
376 return status;
377 }
378
379 static void catc_tx_done(struct urb *urb)
380 {
381 struct catc *catc = urb->context;
382 unsigned long flags;
383 int r;
384
385 if (urb->status == -ECONNRESET) {
386 dbg("Tx Reset.");
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 r = catc_tx_run(catc);
404 if (unlikely(r < 0))
405 clear_bit(TX_RUNNING, &catc->flags);
406 } else {
407 clear_bit(TX_RUNNING, &catc->flags);
408 }
409
410 netif_wake_queue(catc->netdev);
411
412 spin_unlock_irqrestore(&catc->tx_lock, flags);
413 }
414
415 static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
416 {
417 struct catc *catc = netdev_priv(netdev);
418 unsigned long flags;
419 int r = 0;
420 char *tx_buf;
421
422 spin_lock_irqsave(&catc->tx_lock, flags);
423
424 catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
425 tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
426 if (catc->is_f5u011)
427 *(__be16 *)tx_buf = cpu_to_be16(skb->len);
428 else
429 *(__le16 *)tx_buf = cpu_to_le16(skb->len);
430 skb_copy_from_linear_data(skb, tx_buf + 2, skb->len);
431 catc->tx_ptr += skb->len + 2;
432
433 if (!test_and_set_bit(TX_RUNNING, &catc->flags)) {
434 r = catc_tx_run(catc);
435 if (r < 0)
436 clear_bit(TX_RUNNING, &catc->flags);
437 }
438
439 if ((catc->is_f5u011 && catc->tx_ptr)
440 || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
441 netif_stop_queue(netdev);
442
443 spin_unlock_irqrestore(&catc->tx_lock, flags);
444
445 if (r >= 0) {
446 catc->stats.tx_bytes += skb->len;
447 catc->stats.tx_packets++;
448 }
449
450 dev_kfree_skb(skb);
451
452 return 0;
453 }
454
455 static void catc_tx_timeout(struct net_device *netdev)
456 {
457 struct catc *catc = netdev_priv(netdev);
458
459 dev_warn(&netdev->dev, "Transmit timed out.\n");
460 usb_unlink_urb(catc->tx_urb);
461 }
462
463 /*
464 * Control messages.
465 */
466
467 static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
468 {
469 int retval = usb_control_msg(catc->usbdev,
470 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
471 request, 0x40 | dir, value, index, buf, len, 1000);
472 return retval < 0 ? retval : 0;
473 }
474
475 static void catc_ctrl_run(struct catc *catc)
476 {
477 struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
478 struct usb_device *usbdev = catc->usbdev;
479 struct urb *urb = catc->ctrl_urb;
480 struct usb_ctrlrequest *dr = &catc->ctrl_dr;
481 int status;
482
483 dr->bRequest = q->request;
484 dr->bRequestType = 0x40 | q->dir;
485 dr->wValue = cpu_to_le16(q->value);
486 dr->wIndex = cpu_to_le16(q->index);
487 dr->wLength = cpu_to_le16(q->len);
488
489 urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
490 urb->transfer_buffer_length = q->len;
491 urb->transfer_buffer = catc->ctrl_buf;
492 urb->setup_packet = (void *) dr;
493 urb->dev = usbdev;
494
495 if (!q->dir && q->buf && q->len)
496 memcpy(catc->ctrl_buf, q->buf, q->len);
497
498 if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL)))
499 err("submit(ctrl_urb) status %d", status);
500 }
501
502 static void catc_ctrl_done(struct urb *urb)
503 {
504 struct catc *catc = urb->context;
505 struct ctrl_queue *q;
506 unsigned long flags;
507
508 if (urb->status)
509 dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length);
510
511 spin_lock_irqsave(&catc->ctrl_lock, flags);
512
513 q = catc->ctrl_queue + catc->ctrl_tail;
514
515 if (q->dir) {
516 if (q->buf && q->len)
517 memcpy(q->buf, catc->ctrl_buf, q->len);
518 else
519 q->buf = catc->ctrl_buf;
520 }
521
522 if (q->callback)
523 q->callback(catc, q);
524
525 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
526
527 if (catc->ctrl_head != catc->ctrl_tail)
528 catc_ctrl_run(catc);
529 else
530 clear_bit(CTRL_RUNNING, &catc->flags);
531
532 spin_unlock_irqrestore(&catc->ctrl_lock, flags);
533 }
534
535 static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
536 u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
537 {
538 struct ctrl_queue *q;
539 int retval = 0;
540 unsigned long flags;
541
542 spin_lock_irqsave(&catc->ctrl_lock, flags);
543
544 q = catc->ctrl_queue + catc->ctrl_head;
545
546 q->dir = dir;
547 q->request = request;
548 q->value = value;
549 q->index = index;
550 q->buf = buf;
551 q->len = len;
552 q->callback = callback;
553
554 catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
555
556 if (catc->ctrl_head == catc->ctrl_tail) {
557 err("ctrl queue full");
558 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
559 retval = -1;
560 }
561
562 if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
563 catc_ctrl_run(catc);
564
565 spin_unlock_irqrestore(&catc->ctrl_lock, flags);
566
567 return retval;
568 }
569
570 /*
571 * Statistics.
572 */
573
574 static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
575 {
576 int index = q->index - EthStats;
577 u16 data, last;
578
579 catc->stats_buf[index] = *((char *)q->buf);
580
581 if (index & 1)
582 return;
583
584 data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
585 last = catc->stats_vals[index >> 1];
586
587 switch (index) {
588 case TxSingleColl:
589 case TxMultiColl:
590 catc->stats.collisions += data - last;
591 break;
592 case TxExcessColl:
593 catc->stats.tx_aborted_errors += data - last;
594 catc->stats.tx_errors += data - last;
595 break;
596 case RxFramErr:
597 catc->stats.rx_frame_errors += data - last;
598 catc->stats.rx_errors += data - last;
599 break;
600 }
601
602 catc->stats_vals[index >> 1] = data;
603 }
604
605 static void catc_stats_timer(unsigned long data)
606 {
607 struct catc *catc = (void *) data;
608 int i;
609
610 for (i = 0; i < 8; i++)
611 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
612
613 mod_timer(&catc->timer, jiffies + STATS_UPDATE);
614 }
615
616 static struct net_device_stats *catc_get_stats(struct net_device *netdev)
617 {
618 struct catc *catc = netdev_priv(netdev);
619 return &catc->stats;
620 }
621
622 /*
623 * Receive modes. Broadcast, Multicast, Promisc.
624 */
625
626 static void catc_multicast(unsigned char *addr, u8 *multicast)
627 {
628 u32 crc;
629
630 crc = ether_crc_le(6, addr);
631 multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
632 }
633
634 static void catc_set_multicast_list(struct net_device *netdev)
635 {
636 struct catc *catc = netdev_priv(netdev);
637 struct dev_mc_list *mc;
638 u8 broadcast[6];
639 u8 rx = RxEnable | RxPolarity | RxMultiCast;
640 int i;
641
642 memset(broadcast, 0xff, 6);
643 memset(catc->multicast, 0, 64);
644
645 catc_multicast(broadcast, catc->multicast);
646 catc_multicast(netdev->dev_addr, catc->multicast);
647
648 if (netdev->flags & IFF_PROMISC) {
649 memset(catc->multicast, 0xff, 64);
650 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
651 }
652
653 if (netdev->flags & IFF_ALLMULTI) {
654 memset(catc->multicast, 0xff, 64);
655 } else {
656 for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) {
657 u32 crc = ether_crc_le(6, mc->dmi_addr);
658 if (!catc->is_f5u011) {
659 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
660 } else {
661 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
662 }
663 }
664 }
665 if (!catc->is_f5u011) {
666 catc_set_reg_async(catc, RxUnit, rx);
667 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
668 } else {
669 f5u011_mchash_async(catc, catc->multicast);
670 if (catc->rxmode[0] != rx) {
671 catc->rxmode[0] = rx;
672 dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]);
673 f5u011_rxmode_async(catc, catc->rxmode);
674 }
675 }
676 }
677
678 static void catc_get_drvinfo(struct net_device *dev,
679 struct ethtool_drvinfo *info)
680 {
681 struct catc *catc = netdev_priv(dev);
682 strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
683 strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
684 usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info);
685 }
686
687 static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
688 {
689 struct catc *catc = netdev_priv(dev);
690 if (!catc->is_f5u011)
691 return -EOPNOTSUPP;
692
693 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP;
694 cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP;
695 cmd->speed = SPEED_10;
696 cmd->duplex = DUPLEX_HALF;
697 cmd->port = PORT_TP;
698 cmd->phy_address = 0;
699 cmd->transceiver = XCVR_INTERNAL;
700 cmd->autoneg = AUTONEG_DISABLE;
701 cmd->maxtxpkt = 1;
702 cmd->maxrxpkt = 1;
703 return 0;
704 }
705
706 static struct ethtool_ops ops = {
707 .get_drvinfo = catc_get_drvinfo,
708 .get_settings = catc_get_settings,
709 .get_link = ethtool_op_get_link
710 };
711
712 /*
713 * Open, close.
714 */
715
716 static int catc_open(struct net_device *netdev)
717 {
718 struct catc *catc = netdev_priv(netdev);
719 int status;
720
721 catc->irq_urb->dev = catc->usbdev;
722 if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) {
723 err("submit(irq_urb) status %d", status);
724 return -1;
725 }
726
727 netif_start_queue(netdev);
728
729 if (!catc->is_f5u011)
730 mod_timer(&catc->timer, jiffies + STATS_UPDATE);
731
732 return 0;
733 }
734
735 static int catc_stop(struct net_device *netdev)
736 {
737 struct catc *catc = netdev_priv(netdev);
738
739 netif_stop_queue(netdev);
740
741 if (!catc->is_f5u011)
742 del_timer_sync(&catc->timer);
743
744 usb_kill_urb(catc->rx_urb);
745 usb_kill_urb(catc->tx_urb);
746 usb_kill_urb(catc->irq_urb);
747 usb_kill_urb(catc->ctrl_urb);
748
749 return 0;
750 }
751
752 /*
753 * USB probe, disconnect.
754 */
755
756 static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
757 {
758 struct usb_device *usbdev = interface_to_usbdev(intf);
759 struct net_device *netdev;
760 struct catc *catc;
761 u8 broadcast[6];
762 int i, pktsz;
763
764 if (usb_set_interface(usbdev,
765 intf->altsetting->desc.bInterfaceNumber, 1)) {
766 err("Can't set altsetting 1.");
767 return -EIO;
768 }
769
770 netdev = alloc_etherdev(sizeof(struct catc));
771 if (!netdev)
772 return -ENOMEM;
773
774 catc = netdev_priv(netdev);
775
776 netdev->open = catc_open;
777 netdev->hard_start_xmit = catc_hard_start_xmit;
778 netdev->stop = catc_stop;
779 netdev->get_stats = catc_get_stats;
780 netdev->tx_timeout = catc_tx_timeout;
781 netdev->watchdog_timeo = TX_TIMEOUT;
782 netdev->set_multicast_list = catc_set_multicast_list;
783 SET_ETHTOOL_OPS(netdev, &ops);
784
785 catc->usbdev = usbdev;
786 catc->netdev = netdev;
787
788 spin_lock_init(&catc->tx_lock);
789 spin_lock_init(&catc->ctrl_lock);
790
791 init_timer(&catc->timer);
792 catc->timer.data = (long) catc;
793 catc->timer.function = catc_stats_timer;
794
795 catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
796 catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
797 catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
798 catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
799 if ((!catc->ctrl_urb) || (!catc->tx_urb) ||
800 (!catc->rx_urb) || (!catc->irq_urb)) {
801 err("No free urbs available.");
802 usb_free_urb(catc->ctrl_urb);
803 usb_free_urb(catc->tx_urb);
804 usb_free_urb(catc->rx_urb);
805 usb_free_urb(catc->irq_urb);
806 free_netdev(netdev);
807 return -ENOMEM;
808 }
809
810 /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
811 if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 &&
812 le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
813 le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
814 dbg("Testing for f5u011");
815 catc->is_f5u011 = 1;
816 atomic_set(&catc->recq_sz, 0);
817 pktsz = RX_PKT_SZ;
818 } else {
819 pktsz = RX_MAX_BURST * (PKT_SZ + 2);
820 }
821
822 usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
823 NULL, NULL, 0, catc_ctrl_done, catc);
824
825 usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
826 NULL, 0, catc_tx_done, catc);
827
828 usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
829 catc->rx_buf, pktsz, catc_rx_done, catc);
830
831 usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
832 catc->irq_buf, 2, catc_irq_done, catc, 1);
833
834 if (!catc->is_f5u011) {
835 dbg("Checking memory size\n");
836
837 i = 0x12345678;
838 catc_write_mem(catc, 0x7a80, &i, 4);
839 i = 0x87654321;
840 catc_write_mem(catc, 0xfa80, &i, 4);
841 catc_read_mem(catc, 0x7a80, &i, 4);
842
843 switch (i) {
844 case 0x12345678:
845 catc_set_reg(catc, TxBufCount, 8);
846 catc_set_reg(catc, RxBufCount, 32);
847 dbg("64k Memory\n");
848 break;
849 default:
850 dev_warn(&intf->dev,
851 "Couldn't detect memory size, assuming 32k\n");
852 case 0x87654321:
853 catc_set_reg(catc, TxBufCount, 4);
854 catc_set_reg(catc, RxBufCount, 16);
855 dbg("32k Memory\n");
856 break;
857 }
858
859 dbg("Getting MAC from SEEROM.");
860
861 catc_get_mac(catc, netdev->dev_addr);
862
863 dbg("Setting MAC into registers.");
864
865 for (i = 0; i < 6; i++)
866 catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
867
868 dbg("Filling the multicast list.");
869
870 memset(broadcast, 0xff, 6);
871 catc_multicast(broadcast, catc->multicast);
872 catc_multicast(netdev->dev_addr, catc->multicast);
873 catc_write_mem(catc, 0xfa80, catc->multicast, 64);
874
875 dbg("Clearing error counters.");
876
877 for (i = 0; i < 8; i++)
878 catc_set_reg(catc, EthStats + i, 0);
879 catc->last_stats = jiffies;
880
881 dbg("Enabling.");
882
883 catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
884 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
885 catc_set_reg(catc, LEDCtrl, LEDLink);
886 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
887 } else {
888 dbg("Performing reset\n");
889 catc_reset(catc);
890 catc_get_mac(catc, netdev->dev_addr);
891
892 dbg("Setting RX Mode");
893 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
894 catc->rxmode[1] = 0;
895 f5u011_rxmode(catc, catc->rxmode);
896 }
897 dbg("Init done.");
898 printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ",
899 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
900 usbdev->bus->bus_name, usbdev->devpath);
901 for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
902 printk("%2.2x.\n", netdev->dev_addr[i]);
903 usb_set_intfdata(intf, catc);
904
905 SET_NETDEV_DEV(netdev, &intf->dev);
906 if (register_netdev(netdev) != 0) {
907 usb_set_intfdata(intf, NULL);
908 usb_free_urb(catc->ctrl_urb);
909 usb_free_urb(catc->tx_urb);
910 usb_free_urb(catc->rx_urb);
911 usb_free_urb(catc->irq_urb);
912 free_netdev(netdev);
913 return -EIO;
914 }
915 return 0;
916 }
917
918 static void catc_disconnect(struct usb_interface *intf)
919 {
920 struct catc *catc = usb_get_intfdata(intf);
921
922 usb_set_intfdata(intf, NULL);
923 if (catc) {
924 unregister_netdev(catc->netdev);
925 usb_free_urb(catc->ctrl_urb);
926 usb_free_urb(catc->tx_urb);
927 usb_free_urb(catc->rx_urb);
928 usb_free_urb(catc->irq_urb);
929 free_netdev(catc->netdev);
930 }
931 }
932
933 /*
934 * Module functions and tables.
935 */
936
937 static struct usb_device_id catc_id_table [] = {
938 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */
939 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */
940 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */
941 { }
942 };
943
944 MODULE_DEVICE_TABLE(usb, catc_id_table);
945
946 static struct usb_driver catc_driver = {
947 .name = driver_name,
948 .probe = catc_probe,
949 .disconnect = catc_disconnect,
950 .id_table = catc_id_table,
951 };
952
953 static int __init catc_init(void)
954 {
955 int result = usb_register(&catc_driver);
956 if (result == 0)
957 info(DRIVER_VERSION " " DRIVER_DESC);
958 return result;
959 }
960
961 static void __exit catc_exit(void)
962 {
963 usb_deregister(&catc_driver);
964 }
965
966 module_init(catc_init);
967 module_exit(catc_exit);
kernel source for telekom puls (alcatel/mediatek)