1 /*======================================================================
3 A PCMCIA ethernet driver for the 3com 3c589 card.
5 Copyright (C) 1999 David A. Hinds -- dahinds@users.sourceforge.net
7 3c589_cs.c 1.162 2001/10/13 00:08:50
9 The network driver code is based on Donald Becker's 3c589 code:
11 Written 1994 by Donald Becker.
12 Copyright 1993 United States Government as represented by the
13 Director, National Security Agency. This software may be used and
14 distributed according to the terms of the GNU General Public License,
15 incorporated herein by reference.
16 Donald Becker may be reached at becker@scyld.com
18 Updated for 2.5.x by Alan Cox <alan@lxorguk.ukuu.org.uk>
20 ======================================================================*/
22 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
24 #define DRV_NAME "3c589_cs"
25 #define DRV_VERSION "1.162-ac"
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>
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>
46 #include <pcmcia/cs.h>
47 #include <pcmcia/cistpl.h>
48 #include <pcmcia/cisreg.h>
49 #include <pcmcia/ciscode.h>
50 #include <pcmcia/ds.h>
52 #include <asm/uaccess.h>
54 #include <asm/system.h>
56 /* To minimize the size of the driver source I only define operating
57 constants if they are used several times. You'll need the manual
58 if you want to understand driver details. */
59 /* Offsets from base I/O address. */
61 #define EL3_TIMER 0x0a
63 #define EL3_STATUS 0x0e
65 #define EEPROM_READ 0x0080
66 #define EEPROM_BUSY 0x8000
68 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
70 /* The top five bits written to EL3_CMD are a command, the lower
71 11 bits are the parameter, if applicable. */
86 SetStatusEnb = 15<<11,
88 SetRxThreshold = 17<<11,
89 SetTxThreshold = 18<<11,
92 StatsDisable = 22<<11,
98 AdapterFailure = 0x0002,
100 TxAvailable = 0x0008,
108 /* The SetRxFilter command accepts the following classes: */
116 /* Register window 1 offsets, the window used in normal operation. */
119 #define RX_STATUS 0x08
120 #define TX_STATUS 0x0B
121 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
123 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
124 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
125 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
126 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
128 /* Time in jiffies before concluding Tx hung */
129 #define TX_TIMEOUT ((400*HZ)/1000)
132 struct pcmcia_device *p_dev;
133 /* For transceiver monitoring */
134 struct timer_list media;
137 unsigned long last_irq;
141 static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
143 /*====================================================================*/
145 /* Module parameters */
147 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
148 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
149 MODULE_LICENSE("GPL");
151 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
153 /* Special hook for setting if_port when module is loaded */
154 INT_MODULE_PARM(if_port, 0);
157 /*====================================================================*/
159 static int tc589_config(struct pcmcia_device *link);
160 static void tc589_release(struct pcmcia_device *link);
162 static u16 read_eeprom(unsigned int ioaddr, int index);
163 static void tc589_reset(struct net_device *dev);
164 static void media_check(unsigned long arg);
165 static int el3_config(struct net_device *dev, struct ifmap *map);
166 static int el3_open(struct net_device *dev);
167 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
168 struct net_device *dev);
169 static irqreturn_t el3_interrupt(int irq, void *dev_id);
170 static void update_stats(struct net_device *dev);
171 static struct net_device_stats *el3_get_stats(struct net_device *dev);
172 static int el3_rx(struct net_device *dev);
173 static int el3_close(struct net_device *dev);
174 static void el3_tx_timeout(struct net_device *dev);
175 static void set_rx_mode(struct net_device *dev);
176 static void set_multicast_list(struct net_device *dev);
177 static const struct ethtool_ops netdev_ethtool_ops;
179 static void tc589_detach(struct pcmcia_device *p_dev);
181 /*======================================================================
183 tc589_attach() creates an "instance" of the driver, allocating
184 local data structures for one device. The device is registered
187 ======================================================================*/
189 static const struct net_device_ops el3_netdev_ops = {
190 .ndo_open = el3_open,
191 .ndo_stop = el3_close,
192 .ndo_start_xmit = el3_start_xmit,
193 .ndo_tx_timeout = el3_tx_timeout,
194 .ndo_set_config = el3_config,
195 .ndo_get_stats = el3_get_stats,
196 .ndo_set_multicast_list = set_multicast_list,
197 .ndo_change_mtu = eth_change_mtu,
198 .ndo_set_mac_address = eth_mac_addr,
199 .ndo_validate_addr = eth_validate_addr,
202 static int tc589_probe(struct pcmcia_device *link)
204 struct el3_private *lp;
205 struct net_device *dev;
207 dev_dbg(&link->dev, "3c589_attach()\n");
209 /* Create new ethernet device */
210 dev = alloc_etherdev(sizeof(struct el3_private));
213 lp = netdev_priv(dev);
217 spin_lock_init(&lp->lock);
218 link->resource[0]->end = 16;
219 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
221 link->conf.Attributes = CONF_ENABLE_IRQ;
222 link->conf.IntType = INT_MEMORY_AND_IO;
223 link->conf.ConfigIndex = 1;
225 dev->netdev_ops = &el3_netdev_ops;
226 dev->watchdog_timeo = TX_TIMEOUT;
228 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
230 return tc589_config(link);
233 /*======================================================================
235 This deletes a driver "instance". The device is de-registered
236 with Card Services. If it has been released, all local data
237 structures are freed. Otherwise, the structures will be freed
238 when the device is released.
240 ======================================================================*/
242 static void tc589_detach(struct pcmcia_device *link)
244 struct net_device *dev = link->priv;
246 dev_dbg(&link->dev, "3c589_detach\n");
248 unregister_netdev(dev);
255 /*======================================================================
257 tc589_config() is scheduled to run after a CARD_INSERTION event
258 is received, to configure the PCMCIA socket, and to make the
259 ethernet device available to the system.
261 ======================================================================*/
263 static int tc589_config(struct pcmcia_device *link)
265 struct net_device *dev = link->priv;
267 int ret, i, j, multi = 0, fifo;
269 static const char * const ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
273 dev_dbg(&link->dev, "3c589_config\n");
275 phys_addr = (__be16 *)dev->dev_addr;
276 /* Is this a 3c562? */
277 if (link->manf_id != MANFID_3COM)
278 dev_info(&link->dev, "hmmm, is this really a 3Com card??\n");
279 multi = (link->card_id == PRODID_3COM_3C562);
283 /* For the 3c562, the base address must be xx00-xx7f */
284 for (i = j = 0; j < 0x400; j += 0x10) {
285 if (multi && (j & 0x80)) continue;
286 link->resource[0]->start = j ^ 0x300;
287 i = pcmcia_request_io(link);
294 ret = pcmcia_request_irq(link, el3_interrupt);
298 ret = pcmcia_request_configuration(link, &link->conf);
302 dev->irq = link->irq;
303 dev->base_addr = link->resource[0]->start;
304 ioaddr = dev->base_addr;
307 /* The 3c589 has an extra EEPROM for configuration info, including
308 the hardware address. The 3c562 puts the address in the CIS. */
309 len = pcmcia_get_tuple(link, 0x88, &buf);
310 if (buf && len >= 6) {
311 for (i = 0; i < 3; i++)
312 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
315 kfree(buf); /* 0 < len < 6 */
316 for (i = 0; i < 3; i++)
317 phys_addr[i] = htons(read_eeprom(ioaddr, i));
318 if (phys_addr[0] == htons(0x6060)) {
319 dev_err(&link->dev, "IO port conflict at 0x%03lx-0x%03lx\n",
320 dev->base_addr, dev->base_addr+15);
325 /* The address and resource configuration register aren't loaded from
326 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
327 outw(0x3f00, ioaddr + 8);
330 /* The if_port symbol can be set when the module is loaded */
331 if ((if_port >= 0) && (if_port <= 3))
332 dev->if_port = if_port;
334 dev_err(&link->dev, "invalid if_port requested\n");
336 SET_NETDEV_DEV(dev, &link->dev);
338 if (register_netdev(dev) != 0) {
339 dev_err(&link->dev, "register_netdev() failed\n");
343 netdev_info(dev, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
344 (multi ? "562" : "589"), dev->base_addr, dev->irq,
346 netdev_info(dev, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
347 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
348 if_names[dev->if_port]);
356 /*======================================================================
358 After a card is removed, tc589_release() will unregister the net
359 device, and release the PCMCIA configuration. If the device is
360 still open, this will be postponed until it is closed.
362 ======================================================================*/
364 static void tc589_release(struct pcmcia_device *link)
366 pcmcia_disable_device(link);
369 static int tc589_suspend(struct pcmcia_device *link)
371 struct net_device *dev = link->priv;
374 netif_device_detach(dev);
379 static int tc589_resume(struct pcmcia_device *link)
381 struct net_device *dev = link->priv;
385 netif_device_attach(dev);
391 /*====================================================================*/
394 Use this for commands that may take time to finish
396 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
399 outw(cmd, dev->base_addr + EL3_CMD);
401 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
403 netdev_warn(dev, "command 0x%04x did not complete!\n", cmd);
407 Read a word from the EEPROM using the regular EEPROM access register.
408 Assume that we are in register window zero.
410 static u16 read_eeprom(unsigned int ioaddr, int index)
413 outw(EEPROM_READ + index, ioaddr + 10);
414 /* Reading the eeprom takes 162 us */
415 for (i = 1620; i >= 0; i--)
416 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
418 return inw(ioaddr + 12);
422 Set transceiver type, perhaps to something other than what the user
423 specified in dev->if_port.
425 static void tc589_set_xcvr(struct net_device *dev, int if_port)
427 struct el3_private *lp = netdev_priv(dev);
428 unsigned int ioaddr = dev->base_addr;
432 case 0: case 1: outw(0, ioaddr + 6); break;
433 case 2: outw(3<<14, ioaddr + 6); break;
434 case 3: outw(1<<14, ioaddr + 6); break;
436 /* On PCMCIA, this just turns on the LED */
437 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
438 /* 10baseT interface, enable link beat and jabber check. */
440 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
443 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
445 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
448 static void dump_status(struct net_device *dev)
450 unsigned int ioaddr = dev->base_addr;
452 netdev_info(dev, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
453 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS),
454 inb(ioaddr+TX_STATUS), inw(ioaddr+TX_FREE));
456 netdev_info(dev, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
457 inw(ioaddr+0x04), inw(ioaddr+0x06), inw(ioaddr+0x08),
462 /* Reset and restore all of the 3c589 registers. */
463 static void tc589_reset(struct net_device *dev)
465 unsigned int ioaddr = dev->base_addr;
469 outw(0x0001, ioaddr + 4); /* Activate board. */
470 outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
472 /* Set the station address in window 2. */
474 for (i = 0; i < 6; i++)
475 outb(dev->dev_addr[i], ioaddr + i);
477 tc589_set_xcvr(dev, dev->if_port);
479 /* Switch to the stats window, and clear all stats by reading. */
480 outw(StatsDisable, ioaddr + EL3_CMD);
482 for (i = 0; i < 9; i++)
487 /* Switch to register set 1 for normal use. */
491 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
492 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
493 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
494 /* Allow status bits to be seen. */
495 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
496 /* Ack all pending events, and set active indicator mask. */
497 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
499 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
500 | AdapterFailure, ioaddr + EL3_CMD);
503 static void netdev_get_drvinfo(struct net_device *dev,
504 struct ethtool_drvinfo *info)
506 strcpy(info->driver, DRV_NAME);
507 strcpy(info->version, DRV_VERSION);
508 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
511 static const struct ethtool_ops netdev_ethtool_ops = {
512 .get_drvinfo = netdev_get_drvinfo,
515 static int el3_config(struct net_device *dev, struct ifmap *map)
517 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
518 if (map->port <= 3) {
519 dev->if_port = map->port;
520 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
521 tc589_set_xcvr(dev, dev->if_port);
528 static int el3_open(struct net_device *dev)
530 struct el3_private *lp = netdev_priv(dev);
531 struct pcmcia_device *link = lp->p_dev;
533 if (!pcmcia_dev_present(link))
537 netif_start_queue(dev);
540 init_timer(&lp->media);
541 lp->media.function = media_check;
542 lp->media.data = (unsigned long) dev;
543 lp->media.expires = jiffies + HZ;
544 add_timer(&lp->media);
546 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
547 dev->name, inw(dev->base_addr + EL3_STATUS));
552 static void el3_tx_timeout(struct net_device *dev)
554 unsigned int ioaddr = dev->base_addr;
556 netdev_warn(dev, "Transmit timed out!\n");
558 dev->stats.tx_errors++;
559 dev->trans_start = jiffies; /* prevent tx timeout */
560 /* Issue TX_RESET and TX_START commands. */
561 tc589_wait_for_completion(dev, TxReset);
562 outw(TxEnable, ioaddr + EL3_CMD);
563 netif_wake_queue(dev);
566 static void pop_tx_status(struct net_device *dev)
568 unsigned int ioaddr = dev->base_addr;
571 /* Clear the Tx status stack. */
572 for (i = 32; i > 0; i--) {
573 u_char tx_status = inb(ioaddr + TX_STATUS);
574 if (!(tx_status & 0x84)) break;
575 /* reset transmitter on jabber error or underrun */
576 if (tx_status & 0x30)
577 tc589_wait_for_completion(dev, TxReset);
578 if (tx_status & 0x38) {
579 netdev_dbg(dev, "transmit error: status 0x%02x\n", tx_status);
580 outw(TxEnable, ioaddr + EL3_CMD);
581 dev->stats.tx_aborted_errors++;
583 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
587 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
588 struct net_device *dev)
590 unsigned int ioaddr = dev->base_addr;
591 struct el3_private *priv = netdev_priv(dev);
594 netdev_dbg(dev, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
595 (long)skb->len, inw(ioaddr + EL3_STATUS));
597 spin_lock_irqsave(&priv->lock, flags);
599 dev->stats.tx_bytes += skb->len;
601 /* Put out the doubleword header... */
602 outw(skb->len, ioaddr + TX_FIFO);
603 outw(0x00, ioaddr + TX_FIFO);
604 /* ... and the packet rounded to a doubleword. */
605 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
607 if (inw(ioaddr + TX_FREE) <= 1536) {
608 netif_stop_queue(dev);
609 /* Interrupt us when the FIFO has room for max-sized packet. */
610 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
614 spin_unlock_irqrestore(&priv->lock, flags);
620 /* The EL3 interrupt handler. */
621 static irqreturn_t el3_interrupt(int irq, void *dev_id)
623 struct net_device *dev = (struct net_device *) dev_id;
624 struct el3_private *lp = netdev_priv(dev);
627 int i = 0, handled = 1;
629 if (!netif_device_present(dev))
632 ioaddr = dev->base_addr;
634 netdev_dbg(dev, "interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS));
636 spin_lock(&lp->lock);
637 while ((status = inw(ioaddr + EL3_STATUS)) &
638 (IntLatch | RxComplete | StatsFull)) {
639 if ((status & 0xe000) != 0x2000) {
640 netdev_dbg(dev, "interrupt from dead card\n");
644 if (status & RxComplete)
646 if (status & TxAvailable) {
647 netdev_dbg(dev, " TX room bit was handled.\n");
648 /* There's room in the FIFO for a full-sized packet. */
649 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
650 netif_wake_queue(dev);
652 if (status & TxComplete)
654 if (status & (AdapterFailure | RxEarly | StatsFull)) {
655 /* Handle all uncommon interrupts. */
656 if (status & StatsFull) /* Empty statistics. */
658 if (status & RxEarly) { /* Rx early is unused. */
660 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
662 if (status & AdapterFailure) {
665 fifo_diag = inw(ioaddr + 4);
667 netdev_warn(dev, "adapter failure, FIFO diagnostic register %04x.\n",
669 if (fifo_diag & 0x0400) {
671 tc589_wait_for_completion(dev, TxReset);
672 outw(TxEnable, ioaddr + EL3_CMD);
674 if (fifo_diag & 0x2000) {
676 tc589_wait_for_completion(dev, RxReset);
678 outw(RxEnable, ioaddr + EL3_CMD);
680 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
684 netdev_err(dev, "infinite loop in interrupt, status %4.4x.\n",
686 /* Clear all interrupts */
687 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
690 /* Acknowledge the IRQ. */
691 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
693 lp->last_irq = jiffies;
694 spin_unlock(&lp->lock);
695 netdev_dbg(dev, "exiting interrupt, status %4.4x.\n",
696 inw(ioaddr + EL3_STATUS));
697 return IRQ_RETVAL(handled);
700 static void media_check(unsigned long arg)
702 struct net_device *dev = (struct net_device *)(arg);
703 struct el3_private *lp = netdev_priv(dev);
704 unsigned int ioaddr = dev->base_addr;
708 if (!netif_device_present(dev)) goto reschedule;
710 /* Check for pending interrupt with expired latency timer: with
711 this, we can limp along even if the interrupt is blocked */
712 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
713 (inb(ioaddr + EL3_TIMER) == 0xff)) {
715 netdev_warn(dev, "interrupt(s) dropped!\n");
717 local_irq_save(flags);
718 el3_interrupt(dev->irq, dev);
719 local_irq_restore(flags);
725 lp->media.expires = jiffies + HZ/100;
726 add_timer(&lp->media);
730 /* lp->lock guards the EL3 window. Window should always be 1 except
731 when the lock is held */
732 spin_lock_irqsave(&lp->lock, flags);
734 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
736 /* Ignore collisions unless we've had no irq's recently */
737 if (time_before(jiffies, lp->last_irq + HZ)) {
740 /* Try harder to detect carrier errors */
742 outw(StatsDisable, ioaddr + EL3_CMD);
743 errs = inb(ioaddr + 0);
744 outw(StatsEnable, ioaddr + EL3_CMD);
745 dev->stats.tx_carrier_errors += errs;
746 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
749 if (media != lp->media_status) {
750 if ((media & lp->media_status & 0x8000) &&
751 ((lp->media_status ^ media) & 0x0800))
752 netdev_info(dev, "%s link beat\n",
753 (lp->media_status & 0x0800 ? "lost" : "found"));
754 else if ((media & lp->media_status & 0x4000) &&
755 ((lp->media_status ^ media) & 0x0010))
756 netdev_info(dev, "coax cable %s\n",
757 (lp->media_status & 0x0010 ? "ok" : "problem"));
758 if (dev->if_port == 0) {
759 if (media & 0x8000) {
761 netdev_info(dev, "flipped to 10baseT\n");
763 tc589_set_xcvr(dev, 2);
764 } else if (media & 0x4000) {
766 tc589_set_xcvr(dev, 1);
768 netdev_info(dev, "flipped to 10base2\n");
771 lp->media_status = media;
775 spin_unlock_irqrestore(&lp->lock, flags);
778 lp->media.expires = jiffies + HZ;
779 add_timer(&lp->media);
782 static struct net_device_stats *el3_get_stats(struct net_device *dev)
784 struct el3_private *lp = netdev_priv(dev);
786 struct pcmcia_device *link = lp->p_dev;
788 if (pcmcia_dev_present(link)) {
789 spin_lock_irqsave(&lp->lock, flags);
791 spin_unlock_irqrestore(&lp->lock, flags);
797 Update statistics. We change to register window 6, so this should be run
798 single-threaded if the device is active. This is expected to be a rare
799 operation, and it's simpler for the rest of the driver to assume that
800 window 1 is always valid rather than use a special window-state variable.
802 Caller must hold the lock for this
804 static void update_stats(struct net_device *dev)
806 unsigned int ioaddr = dev->base_addr;
808 netdev_dbg(dev, "updating the statistics.\n");
809 /* Turn off statistics updates while reading. */
810 outw(StatsDisable, ioaddr + EL3_CMD);
811 /* Switch to the stats window, and read everything. */
813 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
814 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
815 /* Multiple collisions. */ inb(ioaddr + 2);
816 dev->stats.collisions += inb(ioaddr + 3);
817 dev->stats.tx_window_errors += inb(ioaddr + 4);
818 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
819 dev->stats.tx_packets += inb(ioaddr + 6);
820 /* Rx packets */ inb(ioaddr + 7);
821 /* Tx deferrals */ inb(ioaddr + 8);
822 /* Rx octets */ inw(ioaddr + 10);
823 /* Tx octets */ inw(ioaddr + 12);
825 /* Back to window 1, and turn statistics back on. */
827 outw(StatsEnable, ioaddr + EL3_CMD);
830 static int el3_rx(struct net_device *dev)
832 unsigned int ioaddr = dev->base_addr;
836 netdev_dbg(dev, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
837 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
838 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
841 if (rx_status & 0x4000) { /* Error, update stats. */
842 short error = rx_status & 0x3800;
843 dev->stats.rx_errors++;
845 case 0x0000: dev->stats.rx_over_errors++; break;
846 case 0x0800: dev->stats.rx_length_errors++; break;
847 case 0x1000: dev->stats.rx_frame_errors++; break;
848 case 0x1800: dev->stats.rx_length_errors++; break;
849 case 0x2000: dev->stats.rx_frame_errors++; break;
850 case 0x2800: dev->stats.rx_crc_errors++; break;
853 short pkt_len = rx_status & 0x7ff;
856 skb = dev_alloc_skb(pkt_len+5);
858 netdev_dbg(dev, " Receiving packet size %d status %4.4x.\n",
862 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
864 skb->protocol = eth_type_trans(skb, dev);
866 dev->stats.rx_packets++;
867 dev->stats.rx_bytes += pkt_len;
869 netdev_dbg(dev, "couldn't allocate a sk_buff of size %d.\n",
871 dev->stats.rx_dropped++;
874 /* Pop the top of the Rx FIFO */
875 tc589_wait_for_completion(dev, RxDiscard);
878 netdev_warn(dev, "too much work in el3_rx!\n");
882 static void set_rx_mode(struct net_device *dev)
884 unsigned int ioaddr = dev->base_addr;
885 u16 opts = SetRxFilter | RxStation | RxBroadcast;
887 if (dev->flags & IFF_PROMISC)
888 opts |= RxMulticast | RxProm;
889 else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
891 outw(opts, ioaddr + EL3_CMD);
894 static void set_multicast_list(struct net_device *dev)
896 struct el3_private *priv = netdev_priv(dev);
899 spin_lock_irqsave(&priv->lock, flags);
901 spin_unlock_irqrestore(&priv->lock, flags);
904 static int el3_close(struct net_device *dev)
906 struct el3_private *lp = netdev_priv(dev);
907 struct pcmcia_device *link = lp->p_dev;
908 unsigned int ioaddr = dev->base_addr;
910 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
912 if (pcmcia_dev_present(link)) {
913 /* Turn off statistics ASAP. We update dev->stats below. */
914 outw(StatsDisable, ioaddr + EL3_CMD);
916 /* Disable the receiver and transmitter. */
917 outw(RxDisable, ioaddr + EL3_CMD);
918 outw(TxDisable, ioaddr + EL3_CMD);
920 if (dev->if_port == 2)
921 /* Turn off thinnet power. Green! */
922 outw(StopCoax, ioaddr + EL3_CMD);
923 else if (dev->if_port == 1) {
924 /* Disable link beat and jabber */
926 outw(0, ioaddr + WN4_MEDIA);
929 /* Switching back to window 0 disables the IRQ. */
931 /* But we explicitly zero the IRQ line select anyway. */
932 outw(0x0f00, ioaddr + WN0_IRQ);
934 /* Check if the card still exists */
935 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
940 netif_stop_queue(dev);
941 del_timer_sync(&lp->media);
946 static struct pcmcia_device_id tc589_ids[] = {
947 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
948 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
949 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
950 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
951 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
952 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
955 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
957 static struct pcmcia_driver tc589_driver = {
958 .owner = THIS_MODULE,
962 .probe = tc589_probe,
963 .remove = tc589_detach,
964 .id_table = tc589_ids,
965 .suspend = tc589_suspend,
966 .resume = tc589_resume,
969 static int __init init_tc589(void)
971 return pcmcia_register_driver(&tc589_driver);
974 static void __exit exit_tc589(void)
976 pcmcia_unregister_driver(&tc589_driver);
979 module_init(init_tc589);
980 module_exit(exit_tc589);