1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
23
24#define DRV_NAME "3c589_cs"
25#define DRV_VERSION "1.162-ac"
26
27#include <linux/module.h>
28#include <linux/init.h>
29#include <linux/kernel.h>
30#include <linux/ptrace.h>
31#include <linux/slab.h>
32#include <linux/string.h>
33#include <linux/timer.h>
34#include <linux/interrupt.h>
35#include <linux/in.h>
36#include <linux/delay.h>
37#include <linux/ethtool.h>
38#include <linux/netdevice.h>
39#include <linux/etherdevice.h>
40#include <linux/skbuff.h>
41#include <linux/if_arp.h>
42#include <linux/ioport.h>
43#include <linux/bitops.h>
44#include <linux/jiffies.h>
45
46#include <pcmcia/cistpl.h>
47#include <pcmcia/cisreg.h>
48#include <pcmcia/ciscode.h>
49#include <pcmcia/ds.h>
50
51#include <asm/uaccess.h>
52#include <asm/io.h>
53
54
55
56
57
58#define EL3_DATA 0x00
59#define EL3_TIMER 0x0a
60#define EL3_CMD 0x0e
61#define EL3_STATUS 0x0e
62
63#define EEPROM_READ 0x0080
64#define EEPROM_BUSY 0x8000
65
66#define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
67
68
69
70enum c509cmd {
71 TotalReset = 0<<11,
72 SelectWindow = 1<<11,
73 StartCoax = 2<<11,
74 RxDisable = 3<<11,
75 RxEnable = 4<<11,
76 RxReset = 5<<11,
77 RxDiscard = 8<<11,
78 TxEnable = 9<<11,
79 TxDisable = 10<<11,
80 TxReset = 11<<11,
81 FakeIntr = 12<<11,
82 AckIntr = 13<<11,
83 SetIntrEnb = 14<<11,
84 SetStatusEnb = 15<<11,
85 SetRxFilter = 16<<11,
86 SetRxThreshold = 17<<11,
87 SetTxThreshold = 18<<11,
88 SetTxStart = 19<<11,
89 StatsEnable = 21<<11,
90 StatsDisable = 22<<11,
91 StopCoax = 23<<11
92};
93
94enum c509status {
95 IntLatch = 0x0001,
96 AdapterFailure = 0x0002,
97 TxComplete = 0x0004,
98 TxAvailable = 0x0008,
99 RxComplete = 0x0010,
100 RxEarly = 0x0020,
101 IntReq = 0x0040,
102 StatsFull = 0x0080,
103 CmdBusy = 0x1000
104};
105
106
107enum RxFilter {
108 RxStation = 1,
109 RxMulticast = 2,
110 RxBroadcast = 4,
111 RxProm = 8
112};
113
114
115#define TX_FIFO 0x00
116#define RX_FIFO 0x00
117#define RX_STATUS 0x08
118#define TX_STATUS 0x0B
119#define TX_FREE 0x0C
120
121#define WN0_IRQ 0x08
122#define WN4_MEDIA 0x0A
123#define MEDIA_TP 0x00C0
124#define MEDIA_LED 0x0001
125
126
127#define TX_TIMEOUT ((400*HZ)/1000)
128
129struct el3_private {
130 struct pcmcia_device *p_dev;
131
132 struct timer_list media;
133 u16 media_status;
134 u16 fast_poll;
135 unsigned long last_irq;
136 spinlock_t lock;
137};
138
139static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
140
141
142
143
144
145MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
146MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
147MODULE_LICENSE("GPL");
148
149#define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
150
151
152INT_MODULE_PARM(if_port, 0);
153
154
155
156
157static int tc589_config(struct pcmcia_device *link);
158static void tc589_release(struct pcmcia_device *link);
159
160static u16 read_eeprom(unsigned int ioaddr, int index);
161static void tc589_reset(struct net_device *dev);
162static void media_check(unsigned long arg);
163static int el3_config(struct net_device *dev, struct ifmap *map);
164static int el3_open(struct net_device *dev);
165static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
166 struct net_device *dev);
167static irqreturn_t el3_interrupt(int irq, void *dev_id);
168static void update_stats(struct net_device *dev);
169static struct net_device_stats *el3_get_stats(struct net_device *dev);
170static int el3_rx(struct net_device *dev);
171static int el3_close(struct net_device *dev);
172static void el3_tx_timeout(struct net_device *dev);
173static void set_rx_mode(struct net_device *dev);
174static void set_multicast_list(struct net_device *dev);
175static const struct ethtool_ops netdev_ethtool_ops;
176
177static void tc589_detach(struct pcmcia_device *p_dev);
178
179static const struct net_device_ops el3_netdev_ops = {
180 .ndo_open = el3_open,
181 .ndo_stop = el3_close,
182 .ndo_start_xmit = el3_start_xmit,
183 .ndo_tx_timeout = el3_tx_timeout,
184 .ndo_set_config = el3_config,
185 .ndo_get_stats = el3_get_stats,
186 .ndo_set_rx_mode = set_multicast_list,
187 .ndo_change_mtu = eth_change_mtu,
188 .ndo_set_mac_address = eth_mac_addr,
189 .ndo_validate_addr = eth_validate_addr,
190};
191
192static int tc589_probe(struct pcmcia_device *link)
193{
194 struct el3_private *lp;
195 struct net_device *dev;
196
197 dev_dbg(&link->dev, "3c589_attach()\n");
198
199
200 dev = alloc_etherdev(sizeof(struct el3_private));
201 if (!dev)
202 return -ENOMEM;
203 lp = netdev_priv(dev);
204 link->priv = dev;
205 lp->p_dev = link;
206
207 spin_lock_init(&lp->lock);
208 link->resource[0]->end = 16;
209 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
210
211 link->config_flags |= CONF_ENABLE_IRQ;
212 link->config_index = 1;
213
214 dev->netdev_ops = &el3_netdev_ops;
215 dev->watchdog_timeo = TX_TIMEOUT;
216
217 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
218
219 return tc589_config(link);
220}
221
222static void tc589_detach(struct pcmcia_device *link)
223{
224 struct net_device *dev = link->priv;
225
226 dev_dbg(&link->dev, "3c589_detach\n");
227
228 unregister_netdev(dev);
229
230 tc589_release(link);
231
232 free_netdev(dev);
233}
234
235static int tc589_config(struct pcmcia_device *link)
236{
237 struct net_device *dev = link->priv;
238 __be16 *phys_addr;
239 int ret, i, j, multi = 0, fifo;
240 unsigned int ioaddr;
241 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
242 u8 *buf;
243 size_t len;
244
245 dev_dbg(&link->dev, "3c589_config\n");
246
247 phys_addr = (__be16 *)dev->dev_addr;
248
249 if (link->manf_id != MANFID_3COM)
250 dev_info(&link->dev, "hmmm, is this really a 3Com card??\n");
251 multi = (link->card_id == PRODID_3COM_3C562);
252
253 link->io_lines = 16;
254
255
256 for (i = j = 0; j < 0x400; j += 0x10) {
257 if (multi && (j & 0x80)) continue;
258 link->resource[0]->start = j ^ 0x300;
259 i = pcmcia_request_io(link);
260 if (i == 0)
261 break;
262 }
263 if (i != 0)
264 goto failed;
265
266 ret = pcmcia_request_irq(link, el3_interrupt);
267 if (ret)
268 goto failed;
269
270 ret = pcmcia_enable_device(link);
271 if (ret)
272 goto failed;
273
274 dev->irq = link->irq;
275 dev->base_addr = link->resource[0]->start;
276 ioaddr = dev->base_addr;
277 EL3WINDOW(0);
278
279
280
281 len = pcmcia_get_tuple(link, 0x88, &buf);
282 if (buf && len >= 6) {
283 for (i = 0; i < 3; i++)
284 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
285 kfree(buf);
286 } else {
287 kfree(buf);
288 for (i = 0; i < 3; i++)
289 phys_addr[i] = htons(read_eeprom(ioaddr, i));
290 if (phys_addr[0] == htons(0x6060)) {
291 dev_err(&link->dev, "IO port conflict at 0x%03lx-0x%03lx\n",
292 dev->base_addr, dev->base_addr+15);
293 goto failed;
294 }
295 }
296
297
298
299 outw(0x3f00, ioaddr + 8);
300 fifo = inl(ioaddr);
301
302
303 if ((if_port >= 0) && (if_port <= 3))
304 dev->if_port = if_port;
305 else
306 dev_err(&link->dev, "invalid if_port requested\n");
307
308 SET_NETDEV_DEV(dev, &link->dev);
309
310 if (register_netdev(dev) != 0) {
311 dev_err(&link->dev, "register_netdev() failed\n");
312 goto failed;
313 }
314
315 netdev_info(dev, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
316 (multi ? "562" : "589"), dev->base_addr, dev->irq,
317 dev->dev_addr);
318 netdev_info(dev, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
319 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
320 if_names[dev->if_port]);
321 return 0;
322
323failed:
324 tc589_release(link);
325 return -ENODEV;
326}
327
328static void tc589_release(struct pcmcia_device *link)
329{
330 pcmcia_disable_device(link);
331}
332
333static int tc589_suspend(struct pcmcia_device *link)
334{
335 struct net_device *dev = link->priv;
336
337 if (link->open)
338 netif_device_detach(dev);
339
340 return 0;
341}
342
343static int tc589_resume(struct pcmcia_device *link)
344{
345 struct net_device *dev = link->priv;
346
347 if (link->open) {
348 tc589_reset(dev);
349 netif_device_attach(dev);
350 }
351
352 return 0;
353}
354
355
356
357
358
359
360static void tc589_wait_for_completion(struct net_device *dev, int cmd)
361{
362 int i = 100;
363 outw(cmd, dev->base_addr + EL3_CMD);
364 while (--i > 0)
365 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
366 if (i == 0)
367 netdev_warn(dev, "command 0x%04x did not complete!\n", cmd);
368}
369
370
371
372
373
374static u16 read_eeprom(unsigned int ioaddr, int index)
375{
376 int i;
377 outw(EEPROM_READ + index, ioaddr + 10);
378
379 for (i = 1620; i >= 0; i--)
380 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
381 break;
382 return inw(ioaddr + 12);
383}
384
385
386
387
388
389static void tc589_set_xcvr(struct net_device *dev, int if_port)
390{
391 struct el3_private *lp = netdev_priv(dev);
392 unsigned int ioaddr = dev->base_addr;
393
394 EL3WINDOW(0);
395 switch (if_port) {
396 case 0: case 1: outw(0, ioaddr + 6); break;
397 case 2: outw(3<<14, ioaddr + 6); break;
398 case 3: outw(1<<14, ioaddr + 6); break;
399 }
400
401 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
402
403 EL3WINDOW(4);
404 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
405 EL3WINDOW(1);
406 if (if_port == 2)
407 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
408 else
409 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
410}
411
412static void dump_status(struct net_device *dev)
413{
414 unsigned int ioaddr = dev->base_addr;
415 EL3WINDOW(1);
416 netdev_info(dev, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
417 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS),
418 inb(ioaddr+TX_STATUS), inw(ioaddr+TX_FREE));
419 EL3WINDOW(4);
420 netdev_info(dev, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
421 inw(ioaddr+0x04), inw(ioaddr+0x06), inw(ioaddr+0x08),
422 inw(ioaddr+0x0a));
423 EL3WINDOW(1);
424}
425
426
427static void tc589_reset(struct net_device *dev)
428{
429 unsigned int ioaddr = dev->base_addr;
430 int i;
431
432 EL3WINDOW(0);
433 outw(0x0001, ioaddr + 4);
434 outw(0x3f00, ioaddr + 8);
435
436
437 EL3WINDOW(2);
438 for (i = 0; i < 6; i++)
439 outb(dev->dev_addr[i], ioaddr + i);
440
441 tc589_set_xcvr(dev, dev->if_port);
442
443
444 outw(StatsDisable, ioaddr + EL3_CMD);
445 EL3WINDOW(6);
446 for (i = 0; i < 9; i++)
447 inb(ioaddr+i);
448 inw(ioaddr + 10);
449 inw(ioaddr + 12);
450
451
452 EL3WINDOW(1);
453
454 set_rx_mode(dev);
455 outw(StatsEnable, ioaddr + EL3_CMD);
456 outw(RxEnable, ioaddr + EL3_CMD);
457 outw(TxEnable, ioaddr + EL3_CMD);
458
459 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
460
461 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
462 ioaddr + EL3_CMD);
463 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
464 | AdapterFailure, ioaddr + EL3_CMD);
465}
466
467static void netdev_get_drvinfo(struct net_device *dev,
468 struct ethtool_drvinfo *info)
469{
470 strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
471 strlcpy(info->version, DRV_VERSION, sizeof(info->version));
472 snprintf(info->bus_info, sizeof(info->bus_info),
473 "PCMCIA 0x%lx", dev->base_addr);
474}
475
476static const struct ethtool_ops netdev_ethtool_ops = {
477 .get_drvinfo = netdev_get_drvinfo,
478};
479
480static int el3_config(struct net_device *dev, struct ifmap *map)
481{
482 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
483 if (map->port <= 3) {
484 dev->if_port = map->port;
485 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
486 tc589_set_xcvr(dev, dev->if_port);
487 } else
488 return -EINVAL;
489 }
490 return 0;
491}
492
493static int el3_open(struct net_device *dev)
494{
495 struct el3_private *lp = netdev_priv(dev);
496 struct pcmcia_device *link = lp->p_dev;
497
498 if (!pcmcia_dev_present(link))
499 return -ENODEV;
500
501 link->open++;
502 netif_start_queue(dev);
503
504 tc589_reset(dev);
505 init_timer(&lp->media);
506 lp->media.function = media_check;
507 lp->media.data = (unsigned long) dev;
508 lp->media.expires = jiffies + HZ;
509 add_timer(&lp->media);
510
511 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
512 dev->name, inw(dev->base_addr + EL3_STATUS));
513
514 return 0;
515}
516
517static void el3_tx_timeout(struct net_device *dev)
518{
519 unsigned int ioaddr = dev->base_addr;
520
521 netdev_warn(dev, "Transmit timed out!\n");
522 dump_status(dev);
523 dev->stats.tx_errors++;
524 dev->trans_start = jiffies;
525
526 tc589_wait_for_completion(dev, TxReset);
527 outw(TxEnable, ioaddr + EL3_CMD);
528 netif_wake_queue(dev);
529}
530
531static void pop_tx_status(struct net_device *dev)
532{
533 unsigned int ioaddr = dev->base_addr;
534 int i;
535
536
537 for (i = 32; i > 0; i--) {
538 u_char tx_status = inb(ioaddr + TX_STATUS);
539 if (!(tx_status & 0x84)) break;
540
541 if (tx_status & 0x30)
542 tc589_wait_for_completion(dev, TxReset);
543 if (tx_status & 0x38) {
544 netdev_dbg(dev, "transmit error: status 0x%02x\n", tx_status);
545 outw(TxEnable, ioaddr + EL3_CMD);
546 dev->stats.tx_aborted_errors++;
547 }
548 outb(0x00, ioaddr + TX_STATUS);
549 }
550}
551
552static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
553 struct net_device *dev)
554{
555 unsigned int ioaddr = dev->base_addr;
556 struct el3_private *priv = netdev_priv(dev);
557 unsigned long flags;
558
559 netdev_dbg(dev, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
560 (long)skb->len, inw(ioaddr + EL3_STATUS));
561
562 spin_lock_irqsave(&priv->lock, flags);
563
564 dev->stats.tx_bytes += skb->len;
565
566
567 outw(skb->len, ioaddr + TX_FIFO);
568 outw(0x00, ioaddr + TX_FIFO);
569
570 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
571
572 if (inw(ioaddr + TX_FREE) <= 1536) {
573 netif_stop_queue(dev);
574
575 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
576 }
577
578 pop_tx_status(dev);
579 spin_unlock_irqrestore(&priv->lock, flags);
580 dev_kfree_skb(skb);
581
582 return NETDEV_TX_OK;
583}
584
585
586static irqreturn_t el3_interrupt(int irq, void *dev_id)
587{
588 struct net_device *dev = (struct net_device *) dev_id;
589 struct el3_private *lp = netdev_priv(dev);
590 unsigned int ioaddr;
591 __u16 status;
592 int i = 0, handled = 1;
593
594 if (!netif_device_present(dev))
595 return IRQ_NONE;
596
597 ioaddr = dev->base_addr;
598
599 netdev_dbg(dev, "interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS));
600
601 spin_lock(&lp->lock);
602 while ((status = inw(ioaddr + EL3_STATUS)) &
603 (IntLatch | RxComplete | StatsFull)) {
604 if ((status & 0xe000) != 0x2000) {
605 netdev_dbg(dev, "interrupt from dead card\n");
606 handled = 0;
607 break;
608 }
609 if (status & RxComplete)
610 el3_rx(dev);
611 if (status & TxAvailable) {
612 netdev_dbg(dev, " TX room bit was handled.\n");
613
614 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
615 netif_wake_queue(dev);
616 }
617 if (status & TxComplete)
618 pop_tx_status(dev);
619 if (status & (AdapterFailure | RxEarly | StatsFull)) {
620
621 if (status & StatsFull)
622 update_stats(dev);
623 if (status & RxEarly) {
624 el3_rx(dev);
625 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
626 }
627 if (status & AdapterFailure) {
628 u16 fifo_diag;
629 EL3WINDOW(4);
630 fifo_diag = inw(ioaddr + 4);
631 EL3WINDOW(1);
632 netdev_warn(dev, "adapter failure, FIFO diagnostic register %04x.\n",
633 fifo_diag);
634 if (fifo_diag & 0x0400) {
635
636 tc589_wait_for_completion(dev, TxReset);
637 outw(TxEnable, ioaddr + EL3_CMD);
638 }
639 if (fifo_diag & 0x2000) {
640
641 tc589_wait_for_completion(dev, RxReset);
642 set_rx_mode(dev);
643 outw(RxEnable, ioaddr + EL3_CMD);
644 }
645 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
646 }
647 }
648 if (++i > 10) {
649 netdev_err(dev, "infinite loop in interrupt, status %4.4x.\n",
650 status);
651
652 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
653 break;
654 }
655
656 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
657 }
658 lp->last_irq = jiffies;
659 spin_unlock(&lp->lock);
660 netdev_dbg(dev, "exiting interrupt, status %4.4x.\n",
661 inw(ioaddr + EL3_STATUS));
662 return IRQ_RETVAL(handled);
663}
664
665static void media_check(unsigned long arg)
666{
667 struct net_device *dev = (struct net_device *)(arg);
668 struct el3_private *lp = netdev_priv(dev);
669 unsigned int ioaddr = dev->base_addr;
670 u16 media, errs;
671 unsigned long flags;
672
673 if (!netif_device_present(dev)) goto reschedule;
674
675
676
677 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
678 (inb(ioaddr + EL3_TIMER) == 0xff)) {
679 if (!lp->fast_poll)
680 netdev_warn(dev, "interrupt(s) dropped!\n");
681
682 local_irq_save(flags);
683 el3_interrupt(dev->irq, dev);
684 local_irq_restore(flags);
685
686 lp->fast_poll = HZ;
687 }
688 if (lp->fast_poll) {
689 lp->fast_poll--;
690 lp->media.expires = jiffies + HZ/100;
691 add_timer(&lp->media);
692 return;
693 }
694
695
696
697 spin_lock_irqsave(&lp->lock, flags);
698 EL3WINDOW(4);
699 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
700
701
702 if (time_before(jiffies, lp->last_irq + HZ)) {
703 media &= ~0x0010;
704 } else {
705
706 EL3WINDOW(6);
707 outw(StatsDisable, ioaddr + EL3_CMD);
708 errs = inb(ioaddr + 0);
709 outw(StatsEnable, ioaddr + EL3_CMD);
710 dev->stats.tx_carrier_errors += errs;
711 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
712 }
713
714 if (media != lp->media_status) {
715 if ((media & lp->media_status & 0x8000) &&
716 ((lp->media_status ^ media) & 0x0800))
717 netdev_info(dev, "%s link beat\n",
718 (lp->media_status & 0x0800 ? "lost" : "found"));
719 else if ((media & lp->media_status & 0x4000) &&
720 ((lp->media_status ^ media) & 0x0010))
721 netdev_info(dev, "coax cable %s\n",
722 (lp->media_status & 0x0010 ? "ok" : "problem"));
723 if (dev->if_port == 0) {
724 if (media & 0x8000) {
725 if (media & 0x0800)
726 netdev_info(dev, "flipped to 10baseT\n");
727 else
728 tc589_set_xcvr(dev, 2);
729 } else if (media & 0x4000) {
730 if (media & 0x0010)
731 tc589_set_xcvr(dev, 1);
732 else
733 netdev_info(dev, "flipped to 10base2\n");
734 }
735 }
736 lp->media_status = media;
737 }
738
739 EL3WINDOW(1);
740 spin_unlock_irqrestore(&lp->lock, flags);
741
742reschedule:
743 lp->media.expires = jiffies + HZ;
744 add_timer(&lp->media);
745}
746
747static struct net_device_stats *el3_get_stats(struct net_device *dev)
748{
749 struct el3_private *lp = netdev_priv(dev);
750 unsigned long flags;
751 struct pcmcia_device *link = lp->p_dev;
752
753 if (pcmcia_dev_present(link)) {
754 spin_lock_irqsave(&lp->lock, flags);
755 update_stats(dev);
756 spin_unlock_irqrestore(&lp->lock, flags);
757 }
758 return &dev->stats;
759}
760
761
762
763
764
765
766
767
768
769static void update_stats(struct net_device *dev)
770{
771 unsigned int ioaddr = dev->base_addr;
772
773 netdev_dbg(dev, "updating the statistics.\n");
774
775 outw(StatsDisable, ioaddr + EL3_CMD);
776
777 EL3WINDOW(6);
778 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
779 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
780 inb(ioaddr + 2);
781 dev->stats.collisions += inb(ioaddr + 3);
782 dev->stats.tx_window_errors += inb(ioaddr + 4);
783 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
784 dev->stats.tx_packets += inb(ioaddr + 6);
785 inb(ioaddr + 7);
786 inb(ioaddr + 8);
787 inw(ioaddr + 10);
788 inw(ioaddr + 12);
789
790
791 EL3WINDOW(1);
792 outw(StatsEnable, ioaddr + EL3_CMD);
793}
794
795static int el3_rx(struct net_device *dev)
796{
797 unsigned int ioaddr = dev->base_addr;
798 int worklimit = 32;
799 short rx_status;
800
801 netdev_dbg(dev, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
802 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
803 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
804 worklimit > 0) {
805 worklimit--;
806 if (rx_status & 0x4000) {
807 short error = rx_status & 0x3800;
808 dev->stats.rx_errors++;
809 switch (error) {
810 case 0x0000: dev->stats.rx_over_errors++; break;
811 case 0x0800: dev->stats.rx_length_errors++; break;
812 case 0x1000: dev->stats.rx_frame_errors++; break;
813 case 0x1800: dev->stats.rx_length_errors++; break;
814 case 0x2000: dev->stats.rx_frame_errors++; break;
815 case 0x2800: dev->stats.rx_crc_errors++; break;
816 }
817 } else {
818 short pkt_len = rx_status & 0x7ff;
819 struct sk_buff *skb;
820
821 skb = netdev_alloc_skb(dev, pkt_len + 5);
822
823 netdev_dbg(dev, " Receiving packet size %d status %4.4x.\n",
824 pkt_len, rx_status);
825 if (skb != NULL) {
826 skb_reserve(skb, 2);
827 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
828 (pkt_len+3)>>2);
829 skb->protocol = eth_type_trans(skb, dev);
830 netif_rx(skb);
831 dev->stats.rx_packets++;
832 dev->stats.rx_bytes += pkt_len;
833 } else {
834 netdev_dbg(dev, "couldn't allocate a sk_buff of size %d.\n",
835 pkt_len);
836 dev->stats.rx_dropped++;
837 }
838 }
839
840 tc589_wait_for_completion(dev, RxDiscard);
841 }
842 if (worklimit == 0)
843 netdev_warn(dev, "too much work in el3_rx!\n");
844 return 0;
845}
846
847static void set_rx_mode(struct net_device *dev)
848{
849 unsigned int ioaddr = dev->base_addr;
850 u16 opts = SetRxFilter | RxStation | RxBroadcast;
851
852 if (dev->flags & IFF_PROMISC)
853 opts |= RxMulticast | RxProm;
854 else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
855 opts |= RxMulticast;
856 outw(opts, ioaddr + EL3_CMD);
857}
858
859static void set_multicast_list(struct net_device *dev)
860{
861 struct el3_private *priv = netdev_priv(dev);
862 unsigned long flags;
863
864 spin_lock_irqsave(&priv->lock, flags);
865 set_rx_mode(dev);
866 spin_unlock_irqrestore(&priv->lock, flags);
867}
868
869static int el3_close(struct net_device *dev)
870{
871 struct el3_private *lp = netdev_priv(dev);
872 struct pcmcia_device *link = lp->p_dev;
873 unsigned int ioaddr = dev->base_addr;
874
875 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
876
877 if (pcmcia_dev_present(link)) {
878
879 outw(StatsDisable, ioaddr + EL3_CMD);
880
881
882 outw(RxDisable, ioaddr + EL3_CMD);
883 outw(TxDisable, ioaddr + EL3_CMD);
884
885 if (dev->if_port == 2)
886
887 outw(StopCoax, ioaddr + EL3_CMD);
888 else if (dev->if_port == 1) {
889
890 EL3WINDOW(4);
891 outw(0, ioaddr + WN4_MEDIA);
892 }
893
894
895 EL3WINDOW(0);
896
897 outw(0x0f00, ioaddr + WN0_IRQ);
898
899
900 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
901 update_stats(dev);
902 }
903
904 link->open--;
905 netif_stop_queue(dev);
906 del_timer_sync(&lp->media);
907
908 return 0;
909}
910
911static const struct pcmcia_device_id tc589_ids[] = {
912 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
913 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
914 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
915 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
916 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
917 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
918 PCMCIA_DEVICE_NULL,
919};
920MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
921
922static struct pcmcia_driver tc589_driver = {
923 .owner = THIS_MODULE,
924 .name = "3c589_cs",
925 .probe = tc589_probe,
926 .remove = tc589_detach,
927 .id_table = tc589_ids,
928 .suspend = tc589_suspend,
929 .resume = tc589_resume,
930};
931module_pcmcia_driver(tc589_driver);
932