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/cistpl.h>
45 #include <pcmcia/cisreg.h>
46 #include <pcmcia/ciscode.h>
47 #include <pcmcia/ds.h>
49 #include <asm/uaccess.h>
51 #include <asm/system.h>
53 /* To minimize the size of the driver source I only define operating
54 constants if they are used several times. You'll need the manual
55 if you want to understand driver details. */
56 /* Offsets from base I/O address. */
58 #define EL3_TIMER 0x0a
60 #define EL3_STATUS 0x0e
62 #define EEPROM_READ 0x0080
63 #define EEPROM_BUSY 0x8000
65 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
67 /* The top five bits written to EL3_CMD are a command, the lower
68 11 bits are the parameter, if applicable. */
83 SetStatusEnb = 15<<11,
85 SetRxThreshold = 17<<11,
86 SetTxThreshold = 18<<11,
89 StatsDisable = 22<<11,
95 AdapterFailure = 0x0002,
105 /* The SetRxFilter command accepts the following classes: */
113 /* Register window 1 offsets, the window used in normal operation. */
116 #define RX_STATUS 0x08
117 #define TX_STATUS 0x0B
118 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
120 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
121 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
122 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
123 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
125 /* Time in jiffies before concluding Tx hung */
126 #define TX_TIMEOUT ((400*HZ)/1000)
129 struct pcmcia_device *p_dev;
130 /* For transceiver monitoring */
131 struct timer_list media;
134 unsigned long last_irq;
138 static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
140 /*====================================================================*/
142 /* Module parameters */
144 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
145 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
146 MODULE_LICENSE("GPL");
148 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
150 /* Special hook for setting if_port when module is loaded */
151 INT_MODULE_PARM(if_port, 0);
154 /*====================================================================*/
156 static int tc589_config(struct pcmcia_device *link);
157 static void tc589_release(struct pcmcia_device *link);
159 static u16 read_eeprom(unsigned int ioaddr, int index);
160 static void tc589_reset(struct net_device *dev);
161 static void media_check(unsigned long arg);
162 static int el3_config(struct net_device *dev, struct ifmap *map);
163 static int el3_open(struct net_device *dev);
164 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
165 struct net_device *dev);
166 static irqreturn_t el3_interrupt(int irq, void *dev_id);
167 static void update_stats(struct net_device *dev);
168 static struct net_device_stats *el3_get_stats(struct net_device *dev);
169 static int el3_rx(struct net_device *dev);
170 static int el3_close(struct net_device *dev);
171 static void el3_tx_timeout(struct net_device *dev);
172 static void set_rx_mode(struct net_device *dev);
173 static void set_multicast_list(struct net_device *dev);
174 static const struct ethtool_ops netdev_ethtool_ops;
176 static void tc589_detach(struct pcmcia_device *p_dev);
178 /*======================================================================
180 tc589_attach() creates an "instance" of the driver, allocating
181 local data structures for one device. The device is registered
184 ======================================================================*/
186 static const struct net_device_ops el3_netdev_ops = {
187 .ndo_open = el3_open,
188 .ndo_stop = el3_close,
189 .ndo_start_xmit = el3_start_xmit,
190 .ndo_tx_timeout = el3_tx_timeout,
191 .ndo_set_config = el3_config,
192 .ndo_get_stats = el3_get_stats,
193 .ndo_set_multicast_list = set_multicast_list,
194 .ndo_change_mtu = eth_change_mtu,
195 .ndo_set_mac_address = eth_mac_addr,
196 .ndo_validate_addr = eth_validate_addr,
199 static int tc589_probe(struct pcmcia_device *link)
201 struct el3_private *lp;
202 struct net_device *dev;
204 dev_dbg(&link->dev, "3c589_attach()\n");
206 /* Create new ethernet device */
207 dev = alloc_etherdev(sizeof(struct el3_private));
210 lp = netdev_priv(dev);
214 spin_lock_init(&lp->lock);
215 link->resource[0]->end = 16;
216 link->resource[0]->flags |= IO_DATA_PATH_WIDTH_16;
218 link->config_flags |= CONF_ENABLE_IRQ;
219 link->config_index = 1;
221 dev->netdev_ops = &el3_netdev_ops;
222 dev->watchdog_timeo = TX_TIMEOUT;
224 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
226 return tc589_config(link);
229 /*======================================================================
231 This deletes a driver "instance". The device is de-registered
232 with Card Services. If it has been released, all local data
233 structures are freed. Otherwise, the structures will be freed
234 when the device is released.
236 ======================================================================*/
238 static void tc589_detach(struct pcmcia_device *link)
240 struct net_device *dev = link->priv;
242 dev_dbg(&link->dev, "3c589_detach\n");
244 unregister_netdev(dev);
251 /*======================================================================
253 tc589_config() is scheduled to run after a CARD_INSERTION event
254 is received, to configure the PCMCIA socket, and to make the
255 ethernet device available to the system.
257 ======================================================================*/
259 static int tc589_config(struct pcmcia_device *link)
261 struct net_device *dev = link->priv;
263 int ret, i, j, multi = 0, fifo;
265 char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
269 dev_dbg(&link->dev, "3c589_config\n");
271 phys_addr = (__be16 *)dev->dev_addr;
272 /* Is this a 3c562? */
273 if (link->manf_id != MANFID_3COM)
274 printk(KERN_INFO "3c589_cs: hmmm, is this really a "
276 multi = (link->card_id == PRODID_3COM_3C562);
280 /* For the 3c562, the base address must be xx00-xx7f */
281 for (i = j = 0; j < 0x400; j += 0x10) {
282 if (multi && (j & 0x80)) continue;
283 link->resource[0]->start = j ^ 0x300;
284 i = pcmcia_request_io(link);
291 ret = pcmcia_request_irq(link, el3_interrupt);
295 ret = pcmcia_enable_device(link);
299 dev->irq = link->irq;
300 dev->base_addr = link->resource[0]->start;
301 ioaddr = dev->base_addr;
304 /* The 3c589 has an extra EEPROM for configuration info, including
305 the hardware address. The 3c562 puts the address in the CIS. */
306 len = pcmcia_get_tuple(link, 0x88, &buf);
307 if (buf && len >= 6) {
308 for (i = 0; i < 3; i++)
309 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
312 kfree(buf); /* 0 < len < 6 */
313 for (i = 0; i < 3; i++)
314 phys_addr[i] = htons(read_eeprom(ioaddr, i));
315 if (phys_addr[0] == htons(0x6060)) {
316 printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
317 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
322 /* The address and resource configuration register aren't loaded from
323 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
324 outw(0x3f00, ioaddr + 8);
327 /* The if_port symbol can be set when the module is loaded */
328 if ((if_port >= 0) && (if_port <= 3))
329 dev->if_port = if_port;
331 printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
333 SET_NETDEV_DEV(dev, &link->dev);
335 if (register_netdev(dev) != 0) {
336 printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
340 netdev_info(dev, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
341 (multi ? "562" : "589"), dev->base_addr, dev->irq,
343 netdev_info(dev, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
344 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
345 if_names[dev->if_port]);
353 /*======================================================================
355 After a card is removed, tc589_release() will unregister the net
356 device, and release the PCMCIA configuration. If the device is
357 still open, this will be postponed until it is closed.
359 ======================================================================*/
361 static void tc589_release(struct pcmcia_device *link)
363 pcmcia_disable_device(link);
366 static int tc589_suspend(struct pcmcia_device *link)
368 struct net_device *dev = link->priv;
371 netif_device_detach(dev);
376 static int tc589_resume(struct pcmcia_device *link)
378 struct net_device *dev = link->priv;
382 netif_device_attach(dev);
388 /*====================================================================*/
391 Use this for commands that may take time to finish
393 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
396 outw(cmd, dev->base_addr + EL3_CMD);
398 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
400 netdev_warn(dev, "command 0x%04x did not complete!\n", cmd);
404 Read a word from the EEPROM using the regular EEPROM access register.
405 Assume that we are in register window zero.
407 static u16 read_eeprom(unsigned int ioaddr, int index)
410 outw(EEPROM_READ + index, ioaddr + 10);
411 /* Reading the eeprom takes 162 us */
412 for (i = 1620; i >= 0; i--)
413 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
415 return inw(ioaddr + 12);
419 Set transceiver type, perhaps to something other than what the user
420 specified in dev->if_port.
422 static void tc589_set_xcvr(struct net_device *dev, int if_port)
424 struct el3_private *lp = netdev_priv(dev);
425 unsigned int ioaddr = dev->base_addr;
429 case 0: case 1: outw(0, ioaddr + 6); break;
430 case 2: outw(3<<14, ioaddr + 6); break;
431 case 3: outw(1<<14, ioaddr + 6); break;
433 /* On PCMCIA, this just turns on the LED */
434 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
435 /* 10baseT interface, enable link beat and jabber check. */
437 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
440 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
442 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
445 static void dump_status(struct net_device *dev)
447 unsigned int ioaddr = dev->base_addr;
449 netdev_info(dev, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
450 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS),
451 inb(ioaddr+TX_STATUS), inw(ioaddr+TX_FREE));
453 netdev_info(dev, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
454 inw(ioaddr+0x04), inw(ioaddr+0x06), inw(ioaddr+0x08),
459 /* Reset and restore all of the 3c589 registers. */
460 static void tc589_reset(struct net_device *dev)
462 unsigned int ioaddr = dev->base_addr;
466 outw(0x0001, ioaddr + 4); /* Activate board. */
467 outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
469 /* Set the station address in window 2. */
471 for (i = 0; i < 6; i++)
472 outb(dev->dev_addr[i], ioaddr + i);
474 tc589_set_xcvr(dev, dev->if_port);
476 /* Switch to the stats window, and clear all stats by reading. */
477 outw(StatsDisable, ioaddr + EL3_CMD);
479 for (i = 0; i < 9; i++)
484 /* Switch to register set 1 for normal use. */
488 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
489 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
490 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
491 /* Allow status bits to be seen. */
492 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
493 /* Ack all pending events, and set active indicator mask. */
494 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
496 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
497 | AdapterFailure, ioaddr + EL3_CMD);
500 static void netdev_get_drvinfo(struct net_device *dev,
501 struct ethtool_drvinfo *info)
503 strcpy(info->driver, DRV_NAME);
504 strcpy(info->version, DRV_VERSION);
505 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
508 static const struct ethtool_ops netdev_ethtool_ops = {
509 .get_drvinfo = netdev_get_drvinfo,
512 static int el3_config(struct net_device *dev, struct ifmap *map)
514 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
515 if (map->port <= 3) {
516 dev->if_port = map->port;
517 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
518 tc589_set_xcvr(dev, dev->if_port);
525 static int el3_open(struct net_device *dev)
527 struct el3_private *lp = netdev_priv(dev);
528 struct pcmcia_device *link = lp->p_dev;
530 if (!pcmcia_dev_present(link))
534 netif_start_queue(dev);
537 init_timer(&lp->media);
538 lp->media.function = &media_check;
539 lp->media.data = (unsigned long) dev;
540 lp->media.expires = jiffies + HZ;
541 add_timer(&lp->media);
543 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
544 dev->name, inw(dev->base_addr + EL3_STATUS));
549 static void el3_tx_timeout(struct net_device *dev)
551 unsigned int ioaddr = dev->base_addr;
553 netdev_warn(dev, "Transmit timed out!\n");
555 dev->stats.tx_errors++;
556 dev->trans_start = jiffies; /* prevent tx timeout */
557 /* Issue TX_RESET and TX_START commands. */
558 tc589_wait_for_completion(dev, TxReset);
559 outw(TxEnable, ioaddr + EL3_CMD);
560 netif_wake_queue(dev);
563 static void pop_tx_status(struct net_device *dev)
565 unsigned int ioaddr = dev->base_addr;
568 /* Clear the Tx status stack. */
569 for (i = 32; i > 0; i--) {
570 u_char tx_status = inb(ioaddr + TX_STATUS);
571 if (!(tx_status & 0x84)) break;
572 /* reset transmitter on jabber error or underrun */
573 if (tx_status & 0x30)
574 tc589_wait_for_completion(dev, TxReset);
575 if (tx_status & 0x38) {
576 netdev_dbg(dev, "transmit error: status 0x%02x\n", tx_status);
577 outw(TxEnable, ioaddr + EL3_CMD);
578 dev->stats.tx_aborted_errors++;
580 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
584 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
585 struct net_device *dev)
587 unsigned int ioaddr = dev->base_addr;
588 struct el3_private *priv = netdev_priv(dev);
591 netdev_dbg(dev, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
592 (long)skb->len, inw(ioaddr + EL3_STATUS));
594 spin_lock_irqsave(&priv->lock, flags);
596 dev->stats.tx_bytes += skb->len;
598 /* Put out the doubleword header... */
599 outw(skb->len, ioaddr + TX_FIFO);
600 outw(0x00, ioaddr + TX_FIFO);
601 /* ... and the packet rounded to a doubleword. */
602 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
604 if (inw(ioaddr + TX_FREE) <= 1536) {
605 netif_stop_queue(dev);
606 /* Interrupt us when the FIFO has room for max-sized packet. */
607 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
611 spin_unlock_irqrestore(&priv->lock, flags);
617 /* The EL3 interrupt handler. */
618 static irqreturn_t el3_interrupt(int irq, void *dev_id)
620 struct net_device *dev = (struct net_device *) dev_id;
621 struct el3_private *lp = netdev_priv(dev);
624 int i = 0, handled = 1;
626 if (!netif_device_present(dev))
629 ioaddr = dev->base_addr;
631 netdev_dbg(dev, "interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS));
633 spin_lock(&lp->lock);
634 while ((status = inw(ioaddr + EL3_STATUS)) &
635 (IntLatch | RxComplete | StatsFull)) {
636 if ((status & 0xe000) != 0x2000) {
637 netdev_dbg(dev, "interrupt from dead card\n");
641 if (status & RxComplete)
643 if (status & TxAvailable) {
644 netdev_dbg(dev, " TX room bit was handled.\n");
645 /* There's room in the FIFO for a full-sized packet. */
646 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
647 netif_wake_queue(dev);
649 if (status & TxComplete)
651 if (status & (AdapterFailure | RxEarly | StatsFull)) {
652 /* Handle all uncommon interrupts. */
653 if (status & StatsFull) /* Empty statistics. */
655 if (status & RxEarly) { /* Rx early is unused. */
657 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
659 if (status & AdapterFailure) {
662 fifo_diag = inw(ioaddr + 4);
664 netdev_warn(dev, "adapter failure, FIFO diagnostic register %04x.\n",
666 if (fifo_diag & 0x0400) {
668 tc589_wait_for_completion(dev, TxReset);
669 outw(TxEnable, ioaddr + EL3_CMD);
671 if (fifo_diag & 0x2000) {
673 tc589_wait_for_completion(dev, RxReset);
675 outw(RxEnable, ioaddr + EL3_CMD);
677 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
681 netdev_err(dev, "infinite loop in interrupt, status %4.4x.\n",
683 /* Clear all interrupts */
684 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
687 /* Acknowledge the IRQ. */
688 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
690 lp->last_irq = jiffies;
691 spin_unlock(&lp->lock);
692 netdev_dbg(dev, "exiting interrupt, status %4.4x.\n",
693 inw(ioaddr + EL3_STATUS));
694 return IRQ_RETVAL(handled);
697 static void media_check(unsigned long arg)
699 struct net_device *dev = (struct net_device *)(arg);
700 struct el3_private *lp = netdev_priv(dev);
701 unsigned int ioaddr = dev->base_addr;
705 if (!netif_device_present(dev)) goto reschedule;
707 /* Check for pending interrupt with expired latency timer: with
708 this, we can limp along even if the interrupt is blocked */
709 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
710 (inb(ioaddr + EL3_TIMER) == 0xff)) {
712 netdev_warn(dev, "interrupt(s) dropped!\n");
714 local_irq_save(flags);
715 el3_interrupt(dev->irq, dev);
716 local_irq_restore(flags);
722 lp->media.expires = jiffies + HZ/100;
723 add_timer(&lp->media);
727 /* lp->lock guards the EL3 window. Window should always be 1 except
728 when the lock is held */
729 spin_lock_irqsave(&lp->lock, flags);
731 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
733 /* Ignore collisions unless we've had no irq's recently */
734 if (time_before(jiffies, lp->last_irq + HZ)) {
737 /* Try harder to detect carrier errors */
739 outw(StatsDisable, ioaddr + EL3_CMD);
740 errs = inb(ioaddr + 0);
741 outw(StatsEnable, ioaddr + EL3_CMD);
742 dev->stats.tx_carrier_errors += errs;
743 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
746 if (media != lp->media_status) {
747 if ((media & lp->media_status & 0x8000) &&
748 ((lp->media_status ^ media) & 0x0800))
749 netdev_info(dev, "%s link beat\n",
750 (lp->media_status & 0x0800 ? "lost" : "found"));
751 else if ((media & lp->media_status & 0x4000) &&
752 ((lp->media_status ^ media) & 0x0010))
753 netdev_info(dev, "coax cable %s\n",
754 (lp->media_status & 0x0010 ? "ok" : "problem"));
755 if (dev->if_port == 0) {
756 if (media & 0x8000) {
758 netdev_info(dev, "flipped to 10baseT\n");
760 tc589_set_xcvr(dev, 2);
761 } else if (media & 0x4000) {
763 tc589_set_xcvr(dev, 1);
765 netdev_info(dev, "flipped to 10base2\n");
768 lp->media_status = media;
772 spin_unlock_irqrestore(&lp->lock, flags);
775 lp->media.expires = jiffies + HZ;
776 add_timer(&lp->media);
779 static struct net_device_stats *el3_get_stats(struct net_device *dev)
781 struct el3_private *lp = netdev_priv(dev);
783 struct pcmcia_device *link = lp->p_dev;
785 if (pcmcia_dev_present(link)) {
786 spin_lock_irqsave(&lp->lock, flags);
788 spin_unlock_irqrestore(&lp->lock, flags);
794 Update statistics. We change to register window 6, so this should be run
795 single-threaded if the device is active. This is expected to be a rare
796 operation, and it's simpler for the rest of the driver to assume that
797 window 1 is always valid rather than use a special window-state variable.
799 Caller must hold the lock for this
801 static void update_stats(struct net_device *dev)
803 unsigned int ioaddr = dev->base_addr;
805 netdev_dbg(dev, "updating the statistics.\n");
806 /* Turn off statistics updates while reading. */
807 outw(StatsDisable, ioaddr + EL3_CMD);
808 /* Switch to the stats window, and read everything. */
810 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
811 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
812 /* Multiple collisions. */ inb(ioaddr + 2);
813 dev->stats.collisions += inb(ioaddr + 3);
814 dev->stats.tx_window_errors += inb(ioaddr + 4);
815 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
816 dev->stats.tx_packets += inb(ioaddr + 6);
817 /* Rx packets */ inb(ioaddr + 7);
818 /* Tx deferrals */ inb(ioaddr + 8);
819 /* Rx octets */ inw(ioaddr + 10);
820 /* Tx octets */ inw(ioaddr + 12);
822 /* Back to window 1, and turn statistics back on. */
824 outw(StatsEnable, ioaddr + EL3_CMD);
827 static int el3_rx(struct net_device *dev)
829 unsigned int ioaddr = dev->base_addr;
833 netdev_dbg(dev, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
834 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
835 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
838 if (rx_status & 0x4000) { /* Error, update stats. */
839 short error = rx_status & 0x3800;
840 dev->stats.rx_errors++;
842 case 0x0000: dev->stats.rx_over_errors++; break;
843 case 0x0800: dev->stats.rx_length_errors++; break;
844 case 0x1000: dev->stats.rx_frame_errors++; break;
845 case 0x1800: dev->stats.rx_length_errors++; break;
846 case 0x2000: dev->stats.rx_frame_errors++; break;
847 case 0x2800: dev->stats.rx_crc_errors++; break;
850 short pkt_len = rx_status & 0x7ff;
853 skb = dev_alloc_skb(pkt_len+5);
855 netdev_dbg(dev, " Receiving packet size %d status %4.4x.\n",
859 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
861 skb->protocol = eth_type_trans(skb, dev);
863 dev->stats.rx_packets++;
864 dev->stats.rx_bytes += pkt_len;
866 netdev_dbg(dev, "couldn't allocate a sk_buff of size %d.\n",
868 dev->stats.rx_dropped++;
871 /* Pop the top of the Rx FIFO */
872 tc589_wait_for_completion(dev, RxDiscard);
875 netdev_warn(dev, "too much work in el3_rx!\n");
879 static void set_rx_mode(struct net_device *dev)
881 unsigned int ioaddr = dev->base_addr;
882 u16 opts = SetRxFilter | RxStation | RxBroadcast;
884 if (dev->flags & IFF_PROMISC)
885 opts |= RxMulticast | RxProm;
886 else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
888 outw(opts, ioaddr + EL3_CMD);
891 static void set_multicast_list(struct net_device *dev)
893 struct el3_private *priv = netdev_priv(dev);
896 spin_lock_irqsave(&priv->lock, flags);
898 spin_unlock_irqrestore(&priv->lock, flags);
901 static int el3_close(struct net_device *dev)
903 struct el3_private *lp = netdev_priv(dev);
904 struct pcmcia_device *link = lp->p_dev;
905 unsigned int ioaddr = dev->base_addr;
907 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
909 if (pcmcia_dev_present(link)) {
910 /* Turn off statistics ASAP. We update dev->stats below. */
911 outw(StatsDisable, ioaddr + EL3_CMD);
913 /* Disable the receiver and transmitter. */
914 outw(RxDisable, ioaddr + EL3_CMD);
915 outw(TxDisable, ioaddr + EL3_CMD);
917 if (dev->if_port == 2)
918 /* Turn off thinnet power. Green! */
919 outw(StopCoax, ioaddr + EL3_CMD);
920 else if (dev->if_port == 1) {
921 /* Disable link beat and jabber */
923 outw(0, ioaddr + WN4_MEDIA);
926 /* Switching back to window 0 disables the IRQ. */
928 /* But we explicitly zero the IRQ line select anyway. */
929 outw(0x0f00, ioaddr + WN0_IRQ);
931 /* Check if the card still exists */
932 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
937 netif_stop_queue(dev);
938 del_timer_sync(&lp->media);
943 static struct pcmcia_device_id tc589_ids[] = {
944 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
945 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
946 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
947 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
948 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
949 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
952 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
954 static struct pcmcia_driver tc589_driver = {
955 .owner = THIS_MODULE,
957 .probe = tc589_probe,
958 .remove = tc589_detach,
959 .id_table = tc589_ids,
960 .suspend = tc589_suspend,
961 .resume = tc589_resume,
964 static int __init init_tc589(void)
966 return pcmcia_register_driver(&tc589_driver);
969 static void __exit exit_tc589(void)
971 pcmcia_unregister_driver(&tc589_driver);
974 module_init(init_tc589);
975 module_exit(exit_tc589);