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 DRV_NAME "3c589_cs"
23 #define DRV_VERSION "1.162-ac"
25 #include <linux/module.h>
26 #include <linux/init.h>
27 #include <linux/kernel.h>
28 #include <linux/ptrace.h>
29 #include <linux/slab.h>
30 #include <linux/string.h>
31 #include <linux/timer.h>
32 #include <linux/interrupt.h>
34 #include <linux/delay.h>
35 #include <linux/ethtool.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/skbuff.h>
39 #include <linux/if_arp.h>
40 #include <linux/ioport.h>
41 #include <linux/bitops.h>
42 #include <linux/jiffies.h>
44 #include <pcmcia/cs_types.h>
45 #include <pcmcia/cs.h>
46 #include <pcmcia/cistpl.h>
47 #include <pcmcia/cisreg.h>
48 #include <pcmcia/ciscode.h>
49 #include <pcmcia/ds.h>
51 #include <asm/uaccess.h>
53 #include <asm/system.h>
55 /* To minimize the size of the driver source I only define operating
56 constants if they are used several times. You'll need the manual
57 if you want to understand driver details. */
58 /* Offsets from base I/O address. */
60 #define EL3_TIMER 0x0a
62 #define EL3_STATUS 0x0e
64 #define EEPROM_READ 0x0080
65 #define EEPROM_BUSY 0x8000
67 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
69 /* The top five bits written to EL3_CMD are a command, the lower
70 11 bits are the parameter, if applicable. */
85 SetStatusEnb = 15<<11,
87 SetRxThreshold = 17<<11,
88 SetTxThreshold = 18<<11,
91 StatsDisable = 22<<11,
97 AdapterFailure = 0x0002,
107 /* The SetRxFilter command accepts the following classes: */
115 /* Register window 1 offsets, the window used in normal operation. */
118 #define RX_STATUS 0x08
119 #define TX_STATUS 0x0B
120 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
122 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
123 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
124 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
125 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
127 /* Time in jiffies before concluding Tx hung */
128 #define TX_TIMEOUT ((400*HZ)/1000)
131 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->io.NumPorts1 = 16;
219 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
220 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
221 link->irq.Handler = &el3_interrupt;
222 link->conf.Attributes = CONF_ENABLE_IRQ;
223 link->conf.IntType = INT_MEMORY_AND_IO;
224 link->conf.ConfigIndex = 1;
226 dev->netdev_ops = &el3_netdev_ops;
227 dev->watchdog_timeo = TX_TIMEOUT;
229 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
231 return tc589_config(link);
234 /*======================================================================
236 This deletes a driver "instance". The device is de-registered
237 with Card Services. If it has been released, all local data
238 structures are freed. Otherwise, the structures will be freed
239 when the device is released.
241 ======================================================================*/
243 static void tc589_detach(struct pcmcia_device *link)
245 struct net_device *dev = link->priv;
247 dev_dbg(&link->dev, "3c589_detach\n");
250 unregister_netdev(dev);
257 /*======================================================================
259 tc589_config() is scheduled to run after a CARD_INSERTION event
260 is received, to configure the PCMCIA socket, and to make the
261 ethernet device available to the system.
263 ======================================================================*/
265 static int tc589_config(struct pcmcia_device *link)
267 struct net_device *dev = link->priv;
268 struct el3_private *lp = netdev_priv(dev);
270 int ret, i, j, multi = 0, fifo;
272 char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
276 dev_dbg(&link->dev, "3c589_config\n");
278 phys_addr = (__be16 *)dev->dev_addr;
279 /* Is this a 3c562? */
280 if (link->manf_id != MANFID_3COM)
281 printk(KERN_INFO "3c589_cs: hmmm, is this really a "
283 multi = (link->card_id == PRODID_3COM_3C562);
285 /* For the 3c562, the base address must be xx00-xx7f */
286 link->io.IOAddrLines = 16;
287 for (i = j = 0; j < 0x400; j += 0x10) {
288 if (multi && (j & 0x80)) continue;
289 link->io.BasePort1 = j ^ 0x300;
290 i = pcmcia_request_io(link, &link->io);
297 ret = pcmcia_request_irq(link, &link->irq);
301 ret = pcmcia_request_configuration(link, &link->conf);
305 dev->irq = link->irq.AssignedIRQ;
306 dev->base_addr = link->io.BasePort1;
307 ioaddr = dev->base_addr;
310 /* The 3c589 has an extra EEPROM for configuration info, including
311 the hardware address. The 3c562 puts the address in the CIS. */
312 len = pcmcia_get_tuple(link, 0x88, &buf);
313 if (buf && len >= 6) {
314 for (i = 0; i < 3; i++)
315 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
318 kfree(buf); /* 0 < len < 6 */
319 for (i = 0; i < 3; i++)
320 phys_addr[i] = htons(read_eeprom(ioaddr, i));
321 if (phys_addr[0] == htons(0x6060)) {
322 printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
323 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
328 /* The address and resource configuration register aren't loaded from
329 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
330 outw(0x3f00, ioaddr + 8);
333 /* The if_port symbol can be set when the module is loaded */
334 if ((if_port >= 0) && (if_port <= 3))
335 dev->if_port = if_port;
337 printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
339 link->dev_node = &lp->node;
340 SET_NETDEV_DEV(dev, &link->dev);
342 if (register_netdev(dev) != 0) {
343 printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
344 link->dev_node = NULL;
348 strcpy(lp->node.dev_name, dev->name);
350 netdev_info(dev, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
351 (multi ? "562" : "589"), dev->base_addr, dev->irq,
353 netdev_info(dev, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
354 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
355 if_names[dev->if_port]);
363 /*======================================================================
365 After a card is removed, tc589_release() will unregister the net
366 device, and release the PCMCIA configuration. If the device is
367 still open, this will be postponed until it is closed.
369 ======================================================================*/
371 static void tc589_release(struct pcmcia_device *link)
373 pcmcia_disable_device(link);
376 static int tc589_suspend(struct pcmcia_device *link)
378 struct net_device *dev = link->priv;
381 netif_device_detach(dev);
386 static int tc589_resume(struct pcmcia_device *link)
388 struct net_device *dev = link->priv;
392 netif_device_attach(dev);
398 /*====================================================================*/
401 Use this for commands that may take time to finish
403 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
406 outw(cmd, dev->base_addr + EL3_CMD);
408 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
410 netdev_warn(dev, "command 0x%04x did not complete!\n", cmd);
414 Read a word from the EEPROM using the regular EEPROM access register.
415 Assume that we are in register window zero.
417 static u16 read_eeprom(unsigned int ioaddr, int index)
420 outw(EEPROM_READ + index, ioaddr + 10);
421 /* Reading the eeprom takes 162 us */
422 for (i = 1620; i >= 0; i--)
423 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
425 return inw(ioaddr + 12);
429 Set transceiver type, perhaps to something other than what the user
430 specified in dev->if_port.
432 static void tc589_set_xcvr(struct net_device *dev, int if_port)
434 struct el3_private *lp = netdev_priv(dev);
435 unsigned int ioaddr = dev->base_addr;
439 case 0: case 1: outw(0, ioaddr + 6); break;
440 case 2: outw(3<<14, ioaddr + 6); break;
441 case 3: outw(1<<14, ioaddr + 6); break;
443 /* On PCMCIA, this just turns on the LED */
444 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
445 /* 10baseT interface, enable link beat and jabber check. */
447 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
450 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
452 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
455 static void dump_status(struct net_device *dev)
457 unsigned int ioaddr = dev->base_addr;
459 netdev_info(dev, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
460 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS),
461 inb(ioaddr+TX_STATUS), inw(ioaddr+TX_FREE));
463 netdev_info(dev, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
464 inw(ioaddr+0x04), inw(ioaddr+0x06), inw(ioaddr+0x08),
469 /* Reset and restore all of the 3c589 registers. */
470 static void tc589_reset(struct net_device *dev)
472 unsigned int ioaddr = dev->base_addr;
476 outw(0x0001, ioaddr + 4); /* Activate board. */
477 outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
479 /* Set the station address in window 2. */
481 for (i = 0; i < 6; i++)
482 outb(dev->dev_addr[i], ioaddr + i);
484 tc589_set_xcvr(dev, dev->if_port);
486 /* Switch to the stats window, and clear all stats by reading. */
487 outw(StatsDisable, ioaddr + EL3_CMD);
489 for (i = 0; i < 9; i++)
494 /* Switch to register set 1 for normal use. */
498 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
499 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
500 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
501 /* Allow status bits to be seen. */
502 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
503 /* Ack all pending events, and set active indicator mask. */
504 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
506 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
507 | AdapterFailure, ioaddr + EL3_CMD);
510 static void netdev_get_drvinfo(struct net_device *dev,
511 struct ethtool_drvinfo *info)
513 strcpy(info->driver, DRV_NAME);
514 strcpy(info->version, DRV_VERSION);
515 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
518 static const struct ethtool_ops netdev_ethtool_ops = {
519 .get_drvinfo = netdev_get_drvinfo,
522 static int el3_config(struct net_device *dev, struct ifmap *map)
524 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
525 if (map->port <= 3) {
526 dev->if_port = map->port;
527 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
528 tc589_set_xcvr(dev, dev->if_port);
535 static int el3_open(struct net_device *dev)
537 struct el3_private *lp = netdev_priv(dev);
538 struct pcmcia_device *link = lp->p_dev;
540 if (!pcmcia_dev_present(link))
544 netif_start_queue(dev);
547 init_timer(&lp->media);
548 lp->media.function = &media_check;
549 lp->media.data = (unsigned long) dev;
550 lp->media.expires = jiffies + HZ;
551 add_timer(&lp->media);
553 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
554 dev->name, inw(dev->base_addr + EL3_STATUS));
559 static void el3_tx_timeout(struct net_device *dev)
561 unsigned int ioaddr = dev->base_addr;
563 netdev_warn(dev, "Transmit timed out!\n");
565 dev->stats.tx_errors++;
566 dev->trans_start = jiffies; /* prevent tx timeout */
567 /* Issue TX_RESET and TX_START commands. */
568 tc589_wait_for_completion(dev, TxReset);
569 outw(TxEnable, ioaddr + EL3_CMD);
570 netif_wake_queue(dev);
573 static void pop_tx_status(struct net_device *dev)
575 unsigned int ioaddr = dev->base_addr;
578 /* Clear the Tx status stack. */
579 for (i = 32; i > 0; i--) {
580 u_char tx_status = inb(ioaddr + TX_STATUS);
581 if (!(tx_status & 0x84)) break;
582 /* reset transmitter on jabber error or underrun */
583 if (tx_status & 0x30)
584 tc589_wait_for_completion(dev, TxReset);
585 if (tx_status & 0x38) {
586 netdev_dbg(dev, "transmit error: status 0x%02x\n", tx_status);
587 outw(TxEnable, ioaddr + EL3_CMD);
588 dev->stats.tx_aborted_errors++;
590 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
594 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
595 struct net_device *dev)
597 unsigned int ioaddr = dev->base_addr;
598 struct el3_private *priv = netdev_priv(dev);
601 netdev_dbg(dev, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
602 (long)skb->len, inw(ioaddr + EL3_STATUS));
604 spin_lock_irqsave(&priv->lock, flags);
606 dev->stats.tx_bytes += skb->len;
608 /* Put out the doubleword header... */
609 outw(skb->len, ioaddr + TX_FIFO);
610 outw(0x00, ioaddr + TX_FIFO);
611 /* ... and the packet rounded to a doubleword. */
612 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
614 if (inw(ioaddr + TX_FREE) <= 1536) {
615 netif_stop_queue(dev);
616 /* Interrupt us when the FIFO has room for max-sized packet. */
617 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
621 spin_unlock_irqrestore(&priv->lock, flags);
627 /* The EL3 interrupt handler. */
628 static irqreturn_t el3_interrupt(int irq, void *dev_id)
630 struct net_device *dev = (struct net_device *) dev_id;
631 struct el3_private *lp = netdev_priv(dev);
634 int i = 0, handled = 1;
636 if (!netif_device_present(dev))
639 ioaddr = dev->base_addr;
641 netdev_dbg(dev, "interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS));
643 spin_lock(&lp->lock);
644 while ((status = inw(ioaddr + EL3_STATUS)) &
645 (IntLatch | RxComplete | StatsFull)) {
646 if ((status & 0xe000) != 0x2000) {
647 netdev_dbg(dev, "interrupt from dead card\n");
651 if (status & RxComplete)
653 if (status & TxAvailable) {
654 netdev_dbg(dev, " TX room bit was handled.\n");
655 /* There's room in the FIFO for a full-sized packet. */
656 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
657 netif_wake_queue(dev);
659 if (status & TxComplete)
661 if (status & (AdapterFailure | RxEarly | StatsFull)) {
662 /* Handle all uncommon interrupts. */
663 if (status & StatsFull) /* Empty statistics. */
665 if (status & RxEarly) { /* Rx early is unused. */
667 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
669 if (status & AdapterFailure) {
672 fifo_diag = inw(ioaddr + 4);
674 netdev_warn(dev, "adapter failure, FIFO diagnostic register %04x.\n",
676 if (fifo_diag & 0x0400) {
678 tc589_wait_for_completion(dev, TxReset);
679 outw(TxEnable, ioaddr + EL3_CMD);
681 if (fifo_diag & 0x2000) {
683 tc589_wait_for_completion(dev, RxReset);
685 outw(RxEnable, ioaddr + EL3_CMD);
687 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
691 netdev_err(dev, "infinite loop in interrupt, status %4.4x.\n",
693 /* Clear all interrupts */
694 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
697 /* Acknowledge the IRQ. */
698 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
700 lp->last_irq = jiffies;
701 spin_unlock(&lp->lock);
702 netdev_dbg(dev, "exiting interrupt, status %4.4x.\n",
703 inw(ioaddr + EL3_STATUS));
704 return IRQ_RETVAL(handled);
707 static void media_check(unsigned long arg)
709 struct net_device *dev = (struct net_device *)(arg);
710 struct el3_private *lp = netdev_priv(dev);
711 unsigned int ioaddr = dev->base_addr;
715 if (!netif_device_present(dev)) goto reschedule;
717 /* Check for pending interrupt with expired latency timer: with
718 this, we can limp along even if the interrupt is blocked */
719 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
720 (inb(ioaddr + EL3_TIMER) == 0xff)) {
722 netdev_warn(dev, "interrupt(s) dropped!\n");
724 local_irq_save(flags);
725 el3_interrupt(dev->irq, dev);
726 local_irq_restore(flags);
732 lp->media.expires = jiffies + HZ/100;
733 add_timer(&lp->media);
737 /* lp->lock guards the EL3 window. Window should always be 1 except
738 when the lock is held */
739 spin_lock_irqsave(&lp->lock, flags);
741 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
743 /* Ignore collisions unless we've had no irq's recently */
744 if (time_before(jiffies, lp->last_irq + HZ)) {
747 /* Try harder to detect carrier errors */
749 outw(StatsDisable, ioaddr + EL3_CMD);
750 errs = inb(ioaddr + 0);
751 outw(StatsEnable, ioaddr + EL3_CMD);
752 dev->stats.tx_carrier_errors += errs;
753 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
756 if (media != lp->media_status) {
757 if ((media & lp->media_status & 0x8000) &&
758 ((lp->media_status ^ media) & 0x0800))
759 netdev_info(dev, "%s link beat\n",
760 (lp->media_status & 0x0800 ? "lost" : "found"));
761 else if ((media & lp->media_status & 0x4000) &&
762 ((lp->media_status ^ media) & 0x0010))
763 netdev_info(dev, "coax cable %s\n",
764 (lp->media_status & 0x0010 ? "ok" : "problem"));
765 if (dev->if_port == 0) {
766 if (media & 0x8000) {
768 netdev_info(dev, "flipped to 10baseT\n");
770 tc589_set_xcvr(dev, 2);
771 } else if (media & 0x4000) {
773 tc589_set_xcvr(dev, 1);
775 netdev_info(dev, "flipped to 10base2\n");
778 lp->media_status = media;
782 spin_unlock_irqrestore(&lp->lock, flags);
785 lp->media.expires = jiffies + HZ;
786 add_timer(&lp->media);
789 static struct net_device_stats *el3_get_stats(struct net_device *dev)
791 struct el3_private *lp = netdev_priv(dev);
793 struct pcmcia_device *link = lp->p_dev;
795 if (pcmcia_dev_present(link)) {
796 spin_lock_irqsave(&lp->lock, flags);
798 spin_unlock_irqrestore(&lp->lock, flags);
804 Update statistics. We change to register window 6, so this should be run
805 single-threaded if the device is active. This is expected to be a rare
806 operation, and it's simpler for the rest of the driver to assume that
807 window 1 is always valid rather than use a special window-state variable.
809 Caller must hold the lock for this
811 static void update_stats(struct net_device *dev)
813 unsigned int ioaddr = dev->base_addr;
815 netdev_dbg(dev, "updating the statistics.\n");
816 /* Turn off statistics updates while reading. */
817 outw(StatsDisable, ioaddr + EL3_CMD);
818 /* Switch to the stats window, and read everything. */
820 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
821 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
822 /* Multiple collisions. */ inb(ioaddr + 2);
823 dev->stats.collisions += inb(ioaddr + 3);
824 dev->stats.tx_window_errors += inb(ioaddr + 4);
825 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
826 dev->stats.tx_packets += inb(ioaddr + 6);
827 /* Rx packets */ inb(ioaddr + 7);
828 /* Tx deferrals */ inb(ioaddr + 8);
829 /* Rx octets */ inw(ioaddr + 10);
830 /* Tx octets */ inw(ioaddr + 12);
832 /* Back to window 1, and turn statistics back on. */
834 outw(StatsEnable, ioaddr + EL3_CMD);
837 static int el3_rx(struct net_device *dev)
839 unsigned int ioaddr = dev->base_addr;
843 netdev_dbg(dev, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
844 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
845 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
848 if (rx_status & 0x4000) { /* Error, update stats. */
849 short error = rx_status & 0x3800;
850 dev->stats.rx_errors++;
852 case 0x0000: dev->stats.rx_over_errors++; break;
853 case 0x0800: dev->stats.rx_length_errors++; break;
854 case 0x1000: dev->stats.rx_frame_errors++; break;
855 case 0x1800: dev->stats.rx_length_errors++; break;
856 case 0x2000: dev->stats.rx_frame_errors++; break;
857 case 0x2800: dev->stats.rx_crc_errors++; break;
860 short pkt_len = rx_status & 0x7ff;
863 skb = dev_alloc_skb(pkt_len+5);
865 netdev_dbg(dev, " Receiving packet size %d status %4.4x.\n",
869 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
871 skb->protocol = eth_type_trans(skb, dev);
873 dev->stats.rx_packets++;
874 dev->stats.rx_bytes += pkt_len;
876 netdev_dbg(dev, "couldn't allocate a sk_buff of size %d.\n",
878 dev->stats.rx_dropped++;
881 /* Pop the top of the Rx FIFO */
882 tc589_wait_for_completion(dev, RxDiscard);
885 netdev_warn(dev, "too much work in el3_rx!\n");
889 static void set_rx_mode(struct net_device *dev)
891 unsigned int ioaddr = dev->base_addr;
892 u16 opts = SetRxFilter | RxStation | RxBroadcast;
894 if (dev->flags & IFF_PROMISC)
895 opts |= RxMulticast | RxProm;
896 else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
898 outw(opts, ioaddr + EL3_CMD);
901 static void set_multicast_list(struct net_device *dev)
903 struct el3_private *priv = netdev_priv(dev);
906 spin_lock_irqsave(&priv->lock, flags);
908 spin_unlock_irqrestore(&priv->lock, flags);
911 static int el3_close(struct net_device *dev)
913 struct el3_private *lp = netdev_priv(dev);
914 struct pcmcia_device *link = lp->p_dev;
915 unsigned int ioaddr = dev->base_addr;
917 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
919 if (pcmcia_dev_present(link)) {
920 /* Turn off statistics ASAP. We update dev->stats below. */
921 outw(StatsDisable, ioaddr + EL3_CMD);
923 /* Disable the receiver and transmitter. */
924 outw(RxDisable, ioaddr + EL3_CMD);
925 outw(TxDisable, ioaddr + EL3_CMD);
927 if (dev->if_port == 2)
928 /* Turn off thinnet power. Green! */
929 outw(StopCoax, ioaddr + EL3_CMD);
930 else if (dev->if_port == 1) {
931 /* Disable link beat and jabber */
933 outw(0, ioaddr + WN4_MEDIA);
936 /* Switching back to window 0 disables the IRQ. */
938 /* But we explicitly zero the IRQ line select anyway. */
939 outw(0x0f00, ioaddr + WN0_IRQ);
941 /* Check if the card still exists */
942 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
947 netif_stop_queue(dev);
948 del_timer_sync(&lp->media);
953 static struct pcmcia_device_id tc589_ids[] = {
954 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
955 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
956 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
957 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
958 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
959 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
962 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
964 static struct pcmcia_driver tc589_driver = {
965 .owner = THIS_MODULE,
969 .probe = tc589_probe,
970 .remove = tc589_detach,
971 .id_table = tc589_ids,
972 .suspend = tc589_suspend,
973 .resume = tc589_resume,
976 static int __init init_tc589(void)
978 return pcmcia_register_driver(&tc589_driver);
981 static void __exit exit_tc589(void)
983 pcmcia_unregister_driver(&tc589_driver);
986 module_init(init_tc589);
987 module_exit(exit_tc589);