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net: ppp_generic - use DEFINE_IDR for static initialization
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / usb / catc.c
CommitLineData
1da177e4
LT		 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
62MODULE_AUTHOR(DRIVER_AUTHOR);
63MODULE_DESCRIPTION(DRIVER_DESC);
64MODULE_LICENSE("GPL");
65
66static 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
84enum 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
101enum 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
115enum eth_stats {
116 TxSingleColl = 0x00,
117 TxMultiColl = 0x02,
118 TxExcessColl = 0x04,
119 RxFramErr = 0x06,
120};
121
122enum op_mode_bits {
123 Op3MemWaits = 0x03,
124 OpLenInclude = 0x08,
125 OpRxMerge = 0x10,
126 OpTxMerge = 0x20,
127 OpWin95bugfix = 0x40,
128 OpLoopback = 0x80,
129};
130
131enum 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
140enum led_values {
141 LEDFast = 0x01,
142 LEDSlow = 0x02,
143 LEDFlash = 0x03,
144 LEDPulse = 0x04,
145 LEDLink = 0x08,
146};
147
148enum 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
162struct 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
7d12e780 226static void catc_rx_done(struct urb *urb)
1da177e4
LT		 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
8c7b7faa 258 skb_copy_to_linear_data(skb, pkt_start + pkt_offset, pkt_len);
1da177e4
LT		 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
1da177e4
LT		 274 if (catc->is_f5u011) {
275 if (atomic_read(&catc->recq_sz)) {
276 int status;
277 atomic_dec(&catc->recq_sz);
278 dbg("getting extra packet");
279 urb->dev = catc->usbdev;
280 if ((status = usb_submit_urb(urb, GFP_ATOMIC)) < 0) {
281 dbg("submit(rx_urb) status %d", status);
282 }
283 } else {
284 clear_bit(RX_RUNNING, &catc->flags);
285 }
286 }
287}
288
7d12e780 289static void catc_irq_done(struct urb *urb)
1da177e4
LT		 290{
291 struct catc *catc = urb->context;
292 u8 *data = urb->transfer_buffer;
293 int status;
294 unsigned int hasdata = 0, linksts = LinkNoChange;
295
296 if (!catc->is_f5u011) {
297 hasdata = data[1] & 0x80;
298 if (data[1] & 0x40)
299 linksts = LinkGood;
300 else if (data[1] & 0x20)
301 linksts = LinkBad;
302 } else {
303 hasdata = (unsigned int)(be16_to_cpup((__be16*)data) & 0x0fff);
304 if (data[0] == 0x90)
305 linksts = LinkGood;
306 else if (data[0] == 0xA0)
307 linksts = LinkBad;
308 }
309
310 switch (urb->status) {
311 case 0: /* success */
312 break;
313 case -ECONNRESET: /* unlink */
314 case -ENOENT:
315 case -ESHUTDOWN:
316 return;
317 /* -EPIPE: should clear the halt */
318 default: /* error */
319 dbg("irq_done, status %d, data %02x %02x.", urb->status, data[0], data[1]);
320 goto resubmit;
321 }
322
323 if (linksts == LinkGood) {
324 netif_carrier_on(catc->netdev);
325 dbg("link ok");
326 }
327
328 if (linksts == LinkBad) {
329 netif_carrier_off(catc->netdev);
330 dbg("link bad");
331 }
332
333 if (hasdata) {
334 if (test_and_set_bit(RX_RUNNING, &catc->flags)) {
335 if (catc->is_f5u011)
336 atomic_inc(&catc->recq_sz);
337 } else {
338 catc->rx_urb->dev = catc->usbdev;
339 if ((status = usb_submit_urb(catc->rx_urb, GFP_ATOMIC)) < 0) {
340 err("submit(rx_urb) status %d", status);
341 }
342 }
343 }
344resubmit:
54e6ecb2 345 status = usb_submit_urb (urb, GFP_ATOMIC);
1da177e4
LT		 346 if (status)
347 err ("can't resubmit intr, %s-%s, status %d",
348 catc->usbdev->bus->bus_name,
349 catc->usbdev->devpath, status);
350}
351
352/*
353 * Transmit routines.
354 */
355
5a9f4e33 356static int catc_tx_run(struct catc *catc)
1da177e4
LT		 357{
358 int status;
359
360 if (catc->is_f5u011)
361 catc->tx_ptr = (catc->tx_ptr + 63) & ~63;
362
363 catc->tx_urb->transfer_buffer_length = catc->tx_ptr;
364 catc->tx_urb->transfer_buffer = catc->tx_buf[catc->tx_idx];
365 catc->tx_urb->dev = catc->usbdev;
366
367 if ((status = usb_submit_urb(catc->tx_urb, GFP_ATOMIC)) < 0)
368 err("submit(tx_urb), status %d", status);
369
370 catc->tx_idx = !catc->tx_idx;
371 catc->tx_ptr = 0;
372
373 catc->netdev->trans_start = jiffies;
5a9f4e33 374 return status;
1da177e4
LT		 375}
376
7d12e780 377static void catc_tx_done(struct urb *urb)
1da177e4
LT		 378{
379 struct catc *catc = urb->context;
380 unsigned long flags;
5a9f4e33 381 int r;
1da177e4
LT		 382
383 if (urb->status == -ECONNRESET) {
384 dbg("Tx Reset.");
1da177e4
LT		 385 urb->status = 0;
386 catc->netdev->trans_start = jiffies;
387 catc->stats.tx_errors++;
388 clear_bit(TX_RUNNING, &catc->flags);
389 netif_wake_queue(catc->netdev);
390 return;
391 }
392
393 if (urb->status) {
394 dbg("tx_done, status %d, length %d", urb->status, urb->actual_length);
395 return;
396 }
397
398 spin_lock_irqsave(&catc->tx_lock, flags);
399
5a9f4e33
ON		 400 if (catc->tx_ptr) {
401 r = catc_tx_run(catc);
402 if (unlikely(r < 0))
403 clear_bit(TX_RUNNING, &catc->flags);
404 } else {
1da177e4 405 clear_bit(TX_RUNNING, &catc->flags);
5a9f4e33 406 }
1da177e4
LT		 407
408 netif_wake_queue(catc->netdev);
409
410 spin_unlock_irqrestore(&catc->tx_lock, flags);
411}
412
413static int catc_hard_start_xmit(struct sk_buff *skb, struct net_device *netdev)
414{
415 struct catc *catc = netdev_priv(netdev);
416 unsigned long flags;
5a9f4e33 417 int r = 0;
1da177e4
LT		 418 char *tx_buf;
419
420 spin_lock_irqsave(&catc->tx_lock, flags);
421
422 catc->tx_ptr = (((catc->tx_ptr - 1) >> 6) + 1) << 6;
423 tx_buf = catc->tx_buf[catc->tx_idx] + catc->tx_ptr;
4ec7ffa2
AV		 424 if (catc->is_f5u011)
425 *(__be16 *)tx_buf = cpu_to_be16(skb->len);
426 else
427 *(__le16 *)tx_buf = cpu_to_le16(skb->len);
d626f62b 428 skb_copy_from_linear_data(skb, tx_buf + 2, skb->len);
1da177e4
LT		 429 catc->tx_ptr += skb->len + 2;
430
5a9f4e33
ON		 431 if (!test_and_set_bit(TX_RUNNING, &catc->flags)) {
432 r = catc_tx_run(catc);
433 if (r < 0)
434 clear_bit(TX_RUNNING, &catc->flags);
435 }
1da177e4
LT		 436
437 if ((catc->is_f5u011 && catc->tx_ptr)
438 || (catc->tx_ptr >= ((TX_MAX_BURST - 1) * (PKT_SZ + 2))))
439 netif_stop_queue(netdev);
440
441 spin_unlock_irqrestore(&catc->tx_lock, flags);
442
5a9f4e33
ON		 443 if (r >= 0) {
444 catc->stats.tx_bytes += skb->len;
445 catc->stats.tx_packets++;
446 }
1da177e4
LT		 447
448 dev_kfree_skb(skb);
449
450 return 0;
451}
452
453static void catc_tx_timeout(struct net_device *netdev)
454{
455 struct catc *catc = netdev_priv(netdev);
456
4dc89948 457 dev_warn(&netdev->dev, "Transmit timed out.\n");
1da177e4
LT		 458 usb_unlink_urb(catc->tx_urb);
459}
460
461/*
462 * Control messages.
463 */
464
465static int catc_ctrl_msg(struct catc *catc, u8 dir, u8 request, u16 value, u16 index, void *buf, int len)
466{
467 int retval = usb_control_msg(catc->usbdev,
468 dir ? usb_rcvctrlpipe(catc->usbdev, 0) : usb_sndctrlpipe(catc->usbdev, 0),
469 request, 0x40 | dir, value, index, buf, len, 1000);
470 return retval < 0 ? retval : 0;
471}
472
473static void catc_ctrl_run(struct catc *catc)
474{
475 struct ctrl_queue *q = catc->ctrl_queue + catc->ctrl_tail;
476 struct usb_device *usbdev = catc->usbdev;
477 struct urb *urb = catc->ctrl_urb;
478 struct usb_ctrlrequest *dr = &catc->ctrl_dr;
479 int status;
480
481 dr->bRequest = q->request;
482 dr->bRequestType = 0x40 | q->dir;
483 dr->wValue = cpu_to_le16(q->value);
484 dr->wIndex = cpu_to_le16(q->index);
485 dr->wLength = cpu_to_le16(q->len);
486
487 urb->pipe = q->dir ? usb_rcvctrlpipe(usbdev, 0) : usb_sndctrlpipe(usbdev, 0);
488 urb->transfer_buffer_length = q->len;
489 urb->transfer_buffer = catc->ctrl_buf;
490 urb->setup_packet = (void *) dr;
491 urb->dev = usbdev;
492
493 if (!q->dir && q->buf && q->len)
494 memcpy(catc->ctrl_buf, q->buf, q->len);
495
496 if ((status = usb_submit_urb(catc->ctrl_urb, GFP_KERNEL)))
497 err("submit(ctrl_urb) status %d", status);
498}
499
7d12e780 500static void catc_ctrl_done(struct urb *urb)
1da177e4
LT		 501{
502 struct catc *catc = urb->context;
503 struct ctrl_queue *q;
504 unsigned long flags;
505
506 if (urb->status)
507 dbg("ctrl_done, status %d, len %d.", urb->status, urb->actual_length);
508
509 spin_lock_irqsave(&catc->ctrl_lock, flags);
510
511 q = catc->ctrl_queue + catc->ctrl_tail;
512
513 if (q->dir) {
514 if (q->buf && q->len)
515 memcpy(q->buf, catc->ctrl_buf, q->len);
516 else
517 q->buf = catc->ctrl_buf;
518 }
519
520 if (q->callback)
521 q->callback(catc, q);
522
523 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
524
525 if (catc->ctrl_head != catc->ctrl_tail)
526 catc_ctrl_run(catc);
527 else
528 clear_bit(CTRL_RUNNING, &catc->flags);
529
530 spin_unlock_irqrestore(&catc->ctrl_lock, flags);
531}
532
533static int catc_ctrl_async(struct catc *catc, u8 dir, u8 request, u16 value,
534 u16 index, void *buf, int len, void (*callback)(struct catc *catc, struct ctrl_queue *q))
535{
536 struct ctrl_queue *q;
537 int retval = 0;
538 unsigned long flags;
539
540 spin_lock_irqsave(&catc->ctrl_lock, flags);
541
542 q = catc->ctrl_queue + catc->ctrl_head;
543
544 q->dir = dir;
545 q->request = request;
546 q->value = value;
547 q->index = index;
548 q->buf = buf;
549 q->len = len;
550 q->callback = callback;
551
552 catc->ctrl_head = (catc->ctrl_head + 1) & (CTRL_QUEUE - 1);
553
554 if (catc->ctrl_head == catc->ctrl_tail) {
555 err("ctrl queue full");
556 catc->ctrl_tail = (catc->ctrl_tail + 1) & (CTRL_QUEUE - 1);
557 retval = -1;
558 }
559
560 if (!test_and_set_bit(CTRL_RUNNING, &catc->flags))
561 catc_ctrl_run(catc);
562
563 spin_unlock_irqrestore(&catc->ctrl_lock, flags);
564
565 return retval;
566}
567
568/*
569 * Statistics.
570 */
571
572static void catc_stats_done(struct catc *catc, struct ctrl_queue *q)
573{
574 int index = q->index - EthStats;
575 u16 data, last;
576
577 catc->stats_buf[index] = *((char *)q->buf);
578
579 if (index & 1)
580 return;
581
582 data = ((u16)catc->stats_buf[index] << 8) | catc->stats_buf[index + 1];
583 last = catc->stats_vals[index >> 1];
584
585 switch (index) {
586 case TxSingleColl:
587 case TxMultiColl:
588 catc->stats.collisions += data - last;
589 break;
590 case TxExcessColl:
591 catc->stats.tx_aborted_errors += data - last;
592 catc->stats.tx_errors += data - last;
593 break;
594 case RxFramErr:
595 catc->stats.rx_frame_errors += data - last;
596 catc->stats.rx_errors += data - last;
597 break;
598 }
599
600 catc->stats_vals[index >> 1] = data;
601}
602
603static void catc_stats_timer(unsigned long data)
604{
605 struct catc *catc = (void *) data;
606 int i;
607
608 for (i = 0; i < 8; i++)
609 catc_get_reg_async(catc, EthStats + 7 - i, catc_stats_done);
610
611 mod_timer(&catc->timer, jiffies + STATS_UPDATE);
612}
613
614static struct net_device_stats *catc_get_stats(struct net_device *netdev)
615{
616 struct catc *catc = netdev_priv(netdev);
617 return &catc->stats;
618}
619
620/*
621 * Receive modes. Broadcast, Multicast, Promisc.
622 */
623
624static void catc_multicast(unsigned char *addr, u8 *multicast)
625{
626 u32 crc;
627
628 crc = ether_crc_le(6, addr);
629 multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
630}
631
632static void catc_set_multicast_list(struct net_device *netdev)
633{
634 struct catc *catc = netdev_priv(netdev);
635 struct dev_mc_list *mc;
636 u8 broadcast[6];
637 u8 rx = RxEnable | RxPolarity | RxMultiCast;
638 int i;
639
640 memset(broadcast, 0xff, 6);
641 memset(catc->multicast, 0, 64);
642
643 catc_multicast(broadcast, catc->multicast);
644 catc_multicast(netdev->dev_addr, catc->multicast);
645
646 if (netdev->flags & IFF_PROMISC) {
647 memset(catc->multicast, 0xff, 64);
648 rx |= (!catc->is_f5u011) ? RxPromisc : AltRxPromisc;
649 }
650
651 if (netdev->flags & IFF_ALLMULTI) {
652 memset(catc->multicast, 0xff, 64);
653 } else {
654 for (i = 0, mc = netdev->mc_list; mc && i < netdev->mc_count; i++, mc = mc->next) {
655 u32 crc = ether_crc_le(6, mc->dmi_addr);
656 if (!catc->is_f5u011) {
657 catc->multicast[(crc >> 3) & 0x3f] |= 1 << (crc & 7);
658 } else {
659 catc->multicast[7-(crc >> 29)] |= 1 << ((crc >> 26) & 7);
660 }
661 }
662 }
663 if (!catc->is_f5u011) {
664 catc_set_reg_async(catc, RxUnit, rx);
665 catc_write_mem_async(catc, 0xfa80, catc->multicast, 64);
666 } else {
667 f5u011_mchash_async(catc, catc->multicast);
668 if (catc->rxmode[0] != rx) {
669 catc->rxmode[0] = rx;
670 dbg("Setting RX mode to %2.2X %2.2X", catc->rxmode[0], catc->rxmode[1]);
671 f5u011_rxmode_async(catc, catc->rxmode);
672 }
673 }
674}
675
676static void catc_get_drvinfo(struct net_device *dev,
677 struct ethtool_drvinfo *info)
678{
679 struct catc *catc = netdev_priv(dev);
680 strncpy(info->driver, driver_name, ETHTOOL_BUSINFO_LEN);
681 strncpy(info->version, DRIVER_VERSION, ETHTOOL_BUSINFO_LEN);
682 usb_make_path (catc->usbdev, info->bus_info, sizeof info->bus_info);
683}
684
685static int catc_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
686{
687 struct catc *catc = netdev_priv(dev);
688 if (!catc->is_f5u011)
689 return -EOPNOTSUPP;
690
691 cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_TP;
692 cmd->advertising = ADVERTISED_10baseT_Half | ADVERTISED_TP;
693 cmd->speed = SPEED_10;
694 cmd->duplex = DUPLEX_HALF;
695 cmd->port = PORT_TP;
696 cmd->phy_address = 0;
697 cmd->transceiver = XCVR_INTERNAL;
698 cmd->autoneg = AUTONEG_DISABLE;
699 cmd->maxtxpkt = 1;
700 cmd->maxrxpkt = 1;
701 return 0;
702}
703
704static struct ethtool_ops ops = {
705 .get_drvinfo = catc_get_drvinfo,
706 .get_settings = catc_get_settings,
707 .get_link = ethtool_op_get_link
708};
709
710/*
711 * Open, close.
712 */
713
714static int catc_open(struct net_device *netdev)
715{
716 struct catc *catc = netdev_priv(netdev);
717 int status;
718
719 catc->irq_urb->dev = catc->usbdev;
720 if ((status = usb_submit_urb(catc->irq_urb, GFP_KERNEL)) < 0) {
721 err("submit(irq_urb) status %d", status);
722 return -1;
723 }
724
725 netif_start_queue(netdev);
726
727 if (!catc->is_f5u011)
728 mod_timer(&catc->timer, jiffies + STATS_UPDATE);
729
730 return 0;
731}
732
733static int catc_stop(struct net_device *netdev)
734{
735 struct catc *catc = netdev_priv(netdev);
736
737 netif_stop_queue(netdev);
738
739 if (!catc->is_f5u011)
740 del_timer_sync(&catc->timer);
741
742 usb_kill_urb(catc->rx_urb);
743 usb_kill_urb(catc->tx_urb);
744 usb_kill_urb(catc->irq_urb);
745 usb_kill_urb(catc->ctrl_urb);
746
747 return 0;
748}
749
750/*
751 * USB probe, disconnect.
752 */
753
754static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id)
755{
756 struct usb_device *usbdev = interface_to_usbdev(intf);
757 struct net_device *netdev;
758 struct catc *catc;
759 u8 broadcast[6];
760 int i, pktsz;
761
762 if (usb_set_interface(usbdev,
763 intf->altsetting->desc.bInterfaceNumber, 1)) {
764 err("Can't set altsetting 1.");
765 return -EIO;
766 }
767
768 netdev = alloc_etherdev(sizeof(struct catc));
769 if (!netdev)
770 return -ENOMEM;
771
772 catc = netdev_priv(netdev);
773
774 netdev->open = catc_open;
775 netdev->hard_start_xmit = catc_hard_start_xmit;
776 netdev->stop = catc_stop;
777 netdev->get_stats = catc_get_stats;
778 netdev->tx_timeout = catc_tx_timeout;
779 netdev->watchdog_timeo = TX_TIMEOUT;
780 netdev->set_multicast_list = catc_set_multicast_list;
781 SET_ETHTOOL_OPS(netdev, &ops);
782
783 catc->usbdev = usbdev;
784 catc->netdev = netdev;
785
786 spin_lock_init(&catc->tx_lock);
787 spin_lock_init(&catc->ctrl_lock);
788
789 init_timer(&catc->timer);
790 catc->timer.data = (long) catc;
791 catc->timer.function = catc_stats_timer;
792
793 catc->ctrl_urb = usb_alloc_urb(0, GFP_KERNEL);
794 catc->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
795 catc->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
796 catc->irq_urb = usb_alloc_urb(0, GFP_KERNEL);
797 if ((!catc->ctrl_urb) || (!catc->tx_urb) ||
798 (!catc->rx_urb) || (!catc->irq_urb)) {
799 err("No free urbs available.");
c69694b7
MK		 800 usb_free_urb(catc->ctrl_urb);
801 usb_free_urb(catc->tx_urb);
802 usb_free_urb(catc->rx_urb);
803 usb_free_urb(catc->irq_urb);
1da177e4
LT		 804 free_netdev(netdev);
805 return -ENOMEM;
806 }
807
808 /* The F5U011 has the same vendor/product as the netmate but a device version of 0x130 */
809 if (le16_to_cpu(usbdev->descriptor.idVendor) == 0x0423 &&
810 le16_to_cpu(usbdev->descriptor.idProduct) == 0xa &&
811 le16_to_cpu(catc->usbdev->descriptor.bcdDevice) == 0x0130) {
812 dbg("Testing for f5u011");
813 catc->is_f5u011 = 1;
814 atomic_set(&catc->recq_sz, 0);
815 pktsz = RX_PKT_SZ;
816 } else {
817 pktsz = RX_MAX_BURST * (PKT_SZ + 2);
818 }
819
820 usb_fill_control_urb(catc->ctrl_urb, usbdev, usb_sndctrlpipe(usbdev, 0),
821 NULL, NULL, 0, catc_ctrl_done, catc);
822
823 usb_fill_bulk_urb(catc->tx_urb, usbdev, usb_sndbulkpipe(usbdev, 1),
824 NULL, 0, catc_tx_done, catc);
825
826 usb_fill_bulk_urb(catc->rx_urb, usbdev, usb_rcvbulkpipe(usbdev, 1),
827 catc->rx_buf, pktsz, catc_rx_done, catc);
828
829 usb_fill_int_urb(catc->irq_urb, usbdev, usb_rcvintpipe(usbdev, 2),
830 catc->irq_buf, 2, catc_irq_done, catc, 1);
831
832 if (!catc->is_f5u011) {
833 dbg("Checking memory size\n");
834
835 i = 0x12345678;
836 catc_write_mem(catc, 0x7a80, &i, 4);
837 i = 0x87654321;
838 catc_write_mem(catc, 0xfa80, &i, 4);
839 catc_read_mem(catc, 0x7a80, &i, 4);
840
841 switch (i) {
842 case 0x12345678:
843 catc_set_reg(catc, TxBufCount, 8);
844 catc_set_reg(catc, RxBufCount, 32);
845 dbg("64k Memory\n");
846 break;
847 default:
4dc89948
GKH		 848 dev_warn(&intf->dev,
849 "Couldn't detect memory size, assuming 32k\n");
1da177e4
LT		 850 case 0x87654321:
851 catc_set_reg(catc, TxBufCount, 4);
852 catc_set_reg(catc, RxBufCount, 16);
853 dbg("32k Memory\n");
854 break;
855 }
856
857 dbg("Getting MAC from SEEROM.");
858
859 catc_get_mac(catc, netdev->dev_addr);
860
861 dbg("Setting MAC into registers.");
862
863 for (i = 0; i < 6; i++)
864 catc_set_reg(catc, StationAddr0 - i, netdev->dev_addr[i]);
865
866 dbg("Filling the multicast list.");
867
868 memset(broadcast, 0xff, 6);
869 catc_multicast(broadcast, catc->multicast);
870 catc_multicast(netdev->dev_addr, catc->multicast);
871 catc_write_mem(catc, 0xfa80, catc->multicast, 64);
872
873 dbg("Clearing error counters.");
874
875 for (i = 0; i < 8; i++)
876 catc_set_reg(catc, EthStats + i, 0);
877 catc->last_stats = jiffies;
878
879 dbg("Enabling.");
880
881 catc_set_reg(catc, MaxBurst, RX_MAX_BURST);
882 catc_set_reg(catc, OpModes, OpTxMerge | OpRxMerge | OpLenInclude | Op3MemWaits);
883 catc_set_reg(catc, LEDCtrl, LEDLink);
884 catc_set_reg(catc, RxUnit, RxEnable | RxPolarity | RxMultiCast);
885 } else {
886 dbg("Performing reset\n");
887 catc_reset(catc);
888 catc_get_mac(catc, netdev->dev_addr);
889
890 dbg("Setting RX Mode");
891 catc->rxmode[0] = RxEnable | RxPolarity | RxMultiCast;
892 catc->rxmode[1] = 0;
893 f5u011_rxmode(catc, catc->rxmode);
894 }
895 dbg("Init done.");
896 printk(KERN_INFO "%s: %s USB Ethernet at usb-%s-%s, ",
897 netdev->name, (catc->is_f5u011) ? "Belkin F5U011" : "CATC EL1210A NetMate",
898 usbdev->bus->bus_name, usbdev->devpath);
899 for (i = 0; i < 5; i++) printk("%2.2x:", netdev->dev_addr[i]);
900 printk("%2.2x.\n", netdev->dev_addr[i]);
901 usb_set_intfdata(intf, catc);
902
903 SET_NETDEV_DEV(netdev, &intf->dev);
904 if (register_netdev(netdev) != 0) {
905 usb_set_intfdata(intf, NULL);
906 usb_free_urb(catc->ctrl_urb);
907 usb_free_urb(catc->tx_urb);
908 usb_free_urb(catc->rx_urb);
909 usb_free_urb(catc->irq_urb);
910 free_netdev(netdev);
911 return -EIO;
912 }
913 return 0;
914}
915
916static void catc_disconnect(struct usb_interface *intf)
917{
918 struct catc *catc = usb_get_intfdata(intf);
919
920 usb_set_intfdata(intf, NULL);
921 if (catc) {
922 unregister_netdev(catc->netdev);
923 usb_free_urb(catc->ctrl_urb);
924 usb_free_urb(catc->tx_urb);
925 usb_free_urb(catc->rx_urb);
926 usb_free_urb(catc->irq_urb);
927 free_netdev(catc->netdev);
928 }
929}
930
931/*
932 * Module functions and tables.
933 */
934
935static struct usb_device_id catc_id_table [] = {
936 { USB_DEVICE(0x0423, 0xa) }, /* CATC Netmate, Belkin F5U011 */
937 { USB_DEVICE(0x0423, 0xc) }, /* CATC Netmate II, Belkin F5U111 */
938 { USB_DEVICE(0x08d1, 0x1) }, /* smartBridges smartNIC */
939 { }
940};
941
942MODULE_DEVICE_TABLE(usb, catc_id_table);
943
944static struct usb_driver catc_driver = {
1da177e4
LT		 945 .name = driver_name,
946 .probe = catc_probe,
947 .disconnect = catc_disconnect,
948 .id_table = catc_id_table,
949};
950
951static int __init catc_init(void)
952{
953 int result = usb_register(&catc_driver);
954 if (result == 0)
880c9c66
GKH		 955 printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_VERSION ":"
956 DRIVER_DESC "\n");
1da177e4
LT		 957 return result;
958}
959
960static void __exit catc_exit(void)
961{
962 usb_deregister(&catc_driver);
963}
964
965module_init(catc_init);
966module_exit(catc_exit);
kernel source for telekom puls (alcatel/mediatek)