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.h>
45 #include <pcmcia/cistpl.h>
46 #include <pcmcia/cisreg.h>
47 #include <pcmcia/ciscode.h>
48 #include <pcmcia/ds.h>
50 #include <asm/uaccess.h>
52 #include <asm/system.h>
54 /* To minimize the size of the driver source I only define operating
55 constants if they are used several times. You'll need the manual
56 if you want to understand driver details. */
57 /* Offsets from base I/O address. */
59 #define EL3_TIMER 0x0a
61 #define EL3_STATUS 0x0e
63 #define EEPROM_READ 0x0080
64 #define EEPROM_BUSY 0x8000
66 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
68 /* The top five bits written to EL3_CMD are a command, the lower
69 11 bits are the parameter, if applicable. */
84 SetStatusEnb = 15<<11,
86 SetRxThreshold = 17<<11,
87 SetTxThreshold = 18<<11,
90 StatsDisable = 22<<11,
96 AdapterFailure = 0x0002,
106 /* The SetRxFilter command accepts the following classes: */
114 /* Register window 1 offsets, the window used in normal operation. */
117 #define RX_STATUS 0x08
118 #define TX_STATUS 0x0B
119 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
121 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
122 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
123 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
124 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
126 /* Time in jiffies before concluding Tx hung */
127 #define TX_TIMEOUT ((400*HZ)/1000)
130 struct pcmcia_device *p_dev;
131 /* For transceiver monitoring */
132 struct timer_list media;
135 unsigned long last_irq;
139 static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
141 /*====================================================================*/
143 /* Module parameters */
145 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
146 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
147 MODULE_LICENSE("GPL");
149 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
151 /* Special hook for setting if_port when module is loaded */
152 INT_MODULE_PARM(if_port, 0);
155 /*====================================================================*/
157 static int tc589_config(struct pcmcia_device *link);
158 static void tc589_release(struct pcmcia_device *link);
160 static u16 read_eeprom(unsigned int ioaddr, int index);
161 static void tc589_reset(struct net_device *dev);
162 static void media_check(unsigned long arg);
163 static int el3_config(struct net_device *dev, struct ifmap *map);
164 static int el3_open(struct net_device *dev);
165 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
166 struct net_device *dev);
167 static irqreturn_t el3_interrupt(int irq, void *dev_id);
168 static void update_stats(struct net_device *dev);
169 static struct net_device_stats *el3_get_stats(struct net_device *dev);
170 static int el3_rx(struct net_device *dev);
171 static int el3_close(struct net_device *dev);
172 static void el3_tx_timeout(struct net_device *dev);
173 static void set_rx_mode(struct net_device *dev);
174 static void set_multicast_list(struct net_device *dev);
175 static const struct ethtool_ops netdev_ethtool_ops;
177 static void tc589_detach(struct pcmcia_device *p_dev);
179 /*======================================================================
181 tc589_attach() creates an "instance" of the driver, allocating
182 local data structures for one device. The device is registered
185 ======================================================================*/
187 static const struct net_device_ops el3_netdev_ops = {
188 .ndo_open = el3_open,
189 .ndo_stop = el3_close,
190 .ndo_start_xmit = el3_start_xmit,
191 .ndo_tx_timeout = el3_tx_timeout,
192 .ndo_set_config = el3_config,
193 .ndo_get_stats = el3_get_stats,
194 .ndo_set_multicast_list = set_multicast_list,
195 .ndo_change_mtu = eth_change_mtu,
196 .ndo_set_mac_address = eth_mac_addr,
197 .ndo_validate_addr = eth_validate_addr,
200 static int tc589_probe(struct pcmcia_device *link)
202 struct el3_private *lp;
203 struct net_device *dev;
205 dev_dbg(&link->dev, "3c589_attach()\n");
207 /* Create new ethernet device */
208 dev = alloc_etherdev(sizeof(struct el3_private));
211 lp = netdev_priv(dev);
215 spin_lock_init(&lp->lock);
216 link->io.NumPorts1 = 16;
217 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
219 link->conf.Attributes = CONF_ENABLE_IRQ;
220 link->conf.IntType = INT_MEMORY_AND_IO;
221 link->conf.ConfigIndex = 1;
223 dev->netdev_ops = &el3_netdev_ops;
224 dev->watchdog_timeo = TX_TIMEOUT;
226 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
228 return tc589_config(link);
231 /*======================================================================
233 This deletes a driver "instance". The device is de-registered
234 with Card Services. If it has been released, all local data
235 structures are freed. Otherwise, the structures will be freed
236 when the device is released.
238 ======================================================================*/
240 static void tc589_detach(struct pcmcia_device *link)
242 struct net_device *dev = link->priv;
244 dev_dbg(&link->dev, "3c589_detach\n");
246 unregister_netdev(dev);
253 /*======================================================================
255 tc589_config() is scheduled to run after a CARD_INSERTION event
256 is received, to configure the PCMCIA socket, and to make the
257 ethernet device available to the system.
259 ======================================================================*/
261 static int tc589_config(struct pcmcia_device *link)
263 struct net_device *dev = link->priv;
265 int ret, i, j, multi = 0, fifo;
267 char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
271 dev_dbg(&link->dev, "3c589_config\n");
273 phys_addr = (__be16 *)dev->dev_addr;
274 /* Is this a 3c562? */
275 if (link->manf_id != MANFID_3COM)
276 printk(KERN_INFO "3c589_cs: hmmm, is this really a "
278 multi = (link->card_id == PRODID_3COM_3C562);
280 /* For the 3c562, the base address must be xx00-xx7f */
281 link->io.IOAddrLines = 16;
282 for (i = j = 0; j < 0x400; j += 0x10) {
283 if (multi && (j & 0x80)) continue;
284 link->io.BasePort1 = j ^ 0x300;
285 i = pcmcia_request_io(link, &link->io);
292 ret = pcmcia_request_irq(link, el3_interrupt);
296 ret = pcmcia_request_configuration(link, &link->conf);
300 dev->irq = link->irq;
301 dev->base_addr = link->io.BasePort1;
302 ioaddr = dev->base_addr;
305 /* The 3c589 has an extra EEPROM for configuration info, including
306 the hardware address. The 3c562 puts the address in the CIS. */
307 len = pcmcia_get_tuple(link, 0x88, &buf);
308 if (buf && len >= 6) {
309 for (i = 0; i < 3; i++)
310 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
313 kfree(buf); /* 0 < len < 6 */
314 for (i = 0; i < 3; i++)
315 phys_addr[i] = htons(read_eeprom(ioaddr, i));
316 if (phys_addr[0] == htons(0x6060)) {
317 printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
318 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
323 /* The address and resource configuration register aren't loaded from
324 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
325 outw(0x3f00, ioaddr + 8);
328 /* The if_port symbol can be set when the module is loaded */
329 if ((if_port >= 0) && (if_port <= 3))
330 dev->if_port = if_port;
332 printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
334 SET_NETDEV_DEV(dev, &link->dev);
336 if (register_netdev(dev) != 0) {
337 printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
341 netdev_info(dev, "3Com 3c%s, io %#3lx, irq %d, hw_addr %pM\n",
342 (multi ? "562" : "589"), dev->base_addr, dev->irq,
344 netdev_info(dev, " %dK FIFO split %s Rx:Tx, %s xcvr\n",
345 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
346 if_names[dev->if_port]);
354 /*======================================================================
356 After a card is removed, tc589_release() will unregister the net
357 device, and release the PCMCIA configuration. If the device is
358 still open, this will be postponed until it is closed.
360 ======================================================================*/
362 static void tc589_release(struct pcmcia_device *link)
364 pcmcia_disable_device(link);
367 static int tc589_suspend(struct pcmcia_device *link)
369 struct net_device *dev = link->priv;
372 netif_device_detach(dev);
377 static int tc589_resume(struct pcmcia_device *link)
379 struct net_device *dev = link->priv;
383 netif_device_attach(dev);
389 /*====================================================================*/
392 Use this for commands that may take time to finish
394 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
397 outw(cmd, dev->base_addr + EL3_CMD);
399 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
401 netdev_warn(dev, "command 0x%04x did not complete!\n", cmd);
405 Read a word from the EEPROM using the regular EEPROM access register.
406 Assume that we are in register window zero.
408 static u16 read_eeprom(unsigned int ioaddr, int index)
411 outw(EEPROM_READ + index, ioaddr + 10);
412 /* Reading the eeprom takes 162 us */
413 for (i = 1620; i >= 0; i--)
414 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
416 return inw(ioaddr + 12);
420 Set transceiver type, perhaps to something other than what the user
421 specified in dev->if_port.
423 static void tc589_set_xcvr(struct net_device *dev, int if_port)
425 struct el3_private *lp = netdev_priv(dev);
426 unsigned int ioaddr = dev->base_addr;
430 case 0: case 1: outw(0, ioaddr + 6); break;
431 case 2: outw(3<<14, ioaddr + 6); break;
432 case 3: outw(1<<14, ioaddr + 6); break;
434 /* On PCMCIA, this just turns on the LED */
435 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
436 /* 10baseT interface, enable link beat and jabber check. */
438 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
441 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
443 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
446 static void dump_status(struct net_device *dev)
448 unsigned int ioaddr = dev->base_addr;
450 netdev_info(dev, " irq status %04x, rx status %04x, tx status %02x tx free %04x\n",
451 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS),
452 inb(ioaddr+TX_STATUS), inw(ioaddr+TX_FREE));
454 netdev_info(dev, " diagnostics: fifo %04x net %04x ethernet %04x media %04x\n",
455 inw(ioaddr+0x04), inw(ioaddr+0x06), inw(ioaddr+0x08),
460 /* Reset and restore all of the 3c589 registers. */
461 static void tc589_reset(struct net_device *dev)
463 unsigned int ioaddr = dev->base_addr;
467 outw(0x0001, ioaddr + 4); /* Activate board. */
468 outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
470 /* Set the station address in window 2. */
472 for (i = 0; i < 6; i++)
473 outb(dev->dev_addr[i], ioaddr + i);
475 tc589_set_xcvr(dev, dev->if_port);
477 /* Switch to the stats window, and clear all stats by reading. */
478 outw(StatsDisable, ioaddr + EL3_CMD);
480 for (i = 0; i < 9; i++)
485 /* Switch to register set 1 for normal use. */
489 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
490 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
491 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
492 /* Allow status bits to be seen. */
493 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
494 /* Ack all pending events, and set active indicator mask. */
495 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
497 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
498 | AdapterFailure, ioaddr + EL3_CMD);
501 static void netdev_get_drvinfo(struct net_device *dev,
502 struct ethtool_drvinfo *info)
504 strcpy(info->driver, DRV_NAME);
505 strcpy(info->version, DRV_VERSION);
506 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
509 static const struct ethtool_ops netdev_ethtool_ops = {
510 .get_drvinfo = netdev_get_drvinfo,
513 static int el3_config(struct net_device *dev, struct ifmap *map)
515 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
516 if (map->port <= 3) {
517 dev->if_port = map->port;
518 netdev_info(dev, "switched to %s port\n", if_names[dev->if_port]);
519 tc589_set_xcvr(dev, dev->if_port);
526 static int el3_open(struct net_device *dev)
528 struct el3_private *lp = netdev_priv(dev);
529 struct pcmcia_device *link = lp->p_dev;
531 if (!pcmcia_dev_present(link))
535 netif_start_queue(dev);
538 init_timer(&lp->media);
539 lp->media.function = &media_check;
540 lp->media.data = (unsigned long) dev;
541 lp->media.expires = jiffies + HZ;
542 add_timer(&lp->media);
544 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
545 dev->name, inw(dev->base_addr + EL3_STATUS));
550 static void el3_tx_timeout(struct net_device *dev)
552 unsigned int ioaddr = dev->base_addr;
554 netdev_warn(dev, "Transmit timed out!\n");
556 dev->stats.tx_errors++;
557 dev->trans_start = jiffies; /* prevent tx timeout */
558 /* Issue TX_RESET and TX_START commands. */
559 tc589_wait_for_completion(dev, TxReset);
560 outw(TxEnable, ioaddr + EL3_CMD);
561 netif_wake_queue(dev);
564 static void pop_tx_status(struct net_device *dev)
566 unsigned int ioaddr = dev->base_addr;
569 /* Clear the Tx status stack. */
570 for (i = 32; i > 0; i--) {
571 u_char tx_status = inb(ioaddr + TX_STATUS);
572 if (!(tx_status & 0x84)) break;
573 /* reset transmitter on jabber error or underrun */
574 if (tx_status & 0x30)
575 tc589_wait_for_completion(dev, TxReset);
576 if (tx_status & 0x38) {
577 netdev_dbg(dev, "transmit error: status 0x%02x\n", tx_status);
578 outw(TxEnable, ioaddr + EL3_CMD);
579 dev->stats.tx_aborted_errors++;
581 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
585 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
586 struct net_device *dev)
588 unsigned int ioaddr = dev->base_addr;
589 struct el3_private *priv = netdev_priv(dev);
592 netdev_dbg(dev, "el3_start_xmit(length = %ld) called, status %4.4x.\n",
593 (long)skb->len, inw(ioaddr + EL3_STATUS));
595 spin_lock_irqsave(&priv->lock, flags);
597 dev->stats.tx_bytes += skb->len;
599 /* Put out the doubleword header... */
600 outw(skb->len, ioaddr + TX_FIFO);
601 outw(0x00, ioaddr + TX_FIFO);
602 /* ... and the packet rounded to a doubleword. */
603 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
605 if (inw(ioaddr + TX_FREE) <= 1536) {
606 netif_stop_queue(dev);
607 /* Interrupt us when the FIFO has room for max-sized packet. */
608 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
612 spin_unlock_irqrestore(&priv->lock, flags);
618 /* The EL3 interrupt handler. */
619 static irqreturn_t el3_interrupt(int irq, void *dev_id)
621 struct net_device *dev = (struct net_device *) dev_id;
622 struct el3_private *lp = netdev_priv(dev);
625 int i = 0, handled = 1;
627 if (!netif_device_present(dev))
630 ioaddr = dev->base_addr;
632 netdev_dbg(dev, "interrupt, status %4.4x.\n", inw(ioaddr + EL3_STATUS));
634 spin_lock(&lp->lock);
635 while ((status = inw(ioaddr + EL3_STATUS)) &
636 (IntLatch | RxComplete | StatsFull)) {
637 if ((status & 0xe000) != 0x2000) {
638 netdev_dbg(dev, "interrupt from dead card\n");
642 if (status & RxComplete)
644 if (status & TxAvailable) {
645 netdev_dbg(dev, " TX room bit was handled.\n");
646 /* There's room in the FIFO for a full-sized packet. */
647 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
648 netif_wake_queue(dev);
650 if (status & TxComplete)
652 if (status & (AdapterFailure | RxEarly | StatsFull)) {
653 /* Handle all uncommon interrupts. */
654 if (status & StatsFull) /* Empty statistics. */
656 if (status & RxEarly) { /* Rx early is unused. */
658 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
660 if (status & AdapterFailure) {
663 fifo_diag = inw(ioaddr + 4);
665 netdev_warn(dev, "adapter failure, FIFO diagnostic register %04x.\n",
667 if (fifo_diag & 0x0400) {
669 tc589_wait_for_completion(dev, TxReset);
670 outw(TxEnable, ioaddr + EL3_CMD);
672 if (fifo_diag & 0x2000) {
674 tc589_wait_for_completion(dev, RxReset);
676 outw(RxEnable, ioaddr + EL3_CMD);
678 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
682 netdev_err(dev, "infinite loop in interrupt, status %4.4x.\n",
684 /* Clear all interrupts */
685 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
688 /* Acknowledge the IRQ. */
689 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
691 lp->last_irq = jiffies;
692 spin_unlock(&lp->lock);
693 netdev_dbg(dev, "exiting interrupt, status %4.4x.\n",
694 inw(ioaddr + EL3_STATUS));
695 return IRQ_RETVAL(handled);
698 static void media_check(unsigned long arg)
700 struct net_device *dev = (struct net_device *)(arg);
701 struct el3_private *lp = netdev_priv(dev);
702 unsigned int ioaddr = dev->base_addr;
706 if (!netif_device_present(dev)) goto reschedule;
708 /* Check for pending interrupt with expired latency timer: with
709 this, we can limp along even if the interrupt is blocked */
710 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
711 (inb(ioaddr + EL3_TIMER) == 0xff)) {
713 netdev_warn(dev, "interrupt(s) dropped!\n");
715 local_irq_save(flags);
716 el3_interrupt(dev->irq, dev);
717 local_irq_restore(flags);
723 lp->media.expires = jiffies + HZ/100;
724 add_timer(&lp->media);
728 /* lp->lock guards the EL3 window. Window should always be 1 except
729 when the lock is held */
730 spin_lock_irqsave(&lp->lock, flags);
732 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
734 /* Ignore collisions unless we've had no irq's recently */
735 if (time_before(jiffies, lp->last_irq + HZ)) {
738 /* Try harder to detect carrier errors */
740 outw(StatsDisable, ioaddr + EL3_CMD);
741 errs = inb(ioaddr + 0);
742 outw(StatsEnable, ioaddr + EL3_CMD);
743 dev->stats.tx_carrier_errors += errs;
744 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
747 if (media != lp->media_status) {
748 if ((media & lp->media_status & 0x8000) &&
749 ((lp->media_status ^ media) & 0x0800))
750 netdev_info(dev, "%s link beat\n",
751 (lp->media_status & 0x0800 ? "lost" : "found"));
752 else if ((media & lp->media_status & 0x4000) &&
753 ((lp->media_status ^ media) & 0x0010))
754 netdev_info(dev, "coax cable %s\n",
755 (lp->media_status & 0x0010 ? "ok" : "problem"));
756 if (dev->if_port == 0) {
757 if (media & 0x8000) {
759 netdev_info(dev, "flipped to 10baseT\n");
761 tc589_set_xcvr(dev, 2);
762 } else if (media & 0x4000) {
764 tc589_set_xcvr(dev, 1);
766 netdev_info(dev, "flipped to 10base2\n");
769 lp->media_status = media;
773 spin_unlock_irqrestore(&lp->lock, flags);
776 lp->media.expires = jiffies + HZ;
777 add_timer(&lp->media);
780 static struct net_device_stats *el3_get_stats(struct net_device *dev)
782 struct el3_private *lp = netdev_priv(dev);
784 struct pcmcia_device *link = lp->p_dev;
786 if (pcmcia_dev_present(link)) {
787 spin_lock_irqsave(&lp->lock, flags);
789 spin_unlock_irqrestore(&lp->lock, flags);
795 Update statistics. We change to register window 6, so this should be run
796 single-threaded if the device is active. This is expected to be a rare
797 operation, and it's simpler for the rest of the driver to assume that
798 window 1 is always valid rather than use a special window-state variable.
800 Caller must hold the lock for this
802 static void update_stats(struct net_device *dev)
804 unsigned int ioaddr = dev->base_addr;
806 netdev_dbg(dev, "updating the statistics.\n");
807 /* Turn off statistics updates while reading. */
808 outw(StatsDisable, ioaddr + EL3_CMD);
809 /* Switch to the stats window, and read everything. */
811 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
812 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
813 /* Multiple collisions. */ inb(ioaddr + 2);
814 dev->stats.collisions += inb(ioaddr + 3);
815 dev->stats.tx_window_errors += inb(ioaddr + 4);
816 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
817 dev->stats.tx_packets += inb(ioaddr + 6);
818 /* Rx packets */ inb(ioaddr + 7);
819 /* Tx deferrals */ inb(ioaddr + 8);
820 /* Rx octets */ inw(ioaddr + 10);
821 /* Tx octets */ inw(ioaddr + 12);
823 /* Back to window 1, and turn statistics back on. */
825 outw(StatsEnable, ioaddr + EL3_CMD);
828 static int el3_rx(struct net_device *dev)
830 unsigned int ioaddr = dev->base_addr;
834 netdev_dbg(dev, "in rx_packet(), status %4.4x, rx_status %4.4x.\n",
835 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
836 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
839 if (rx_status & 0x4000) { /* Error, update stats. */
840 short error = rx_status & 0x3800;
841 dev->stats.rx_errors++;
843 case 0x0000: dev->stats.rx_over_errors++; break;
844 case 0x0800: dev->stats.rx_length_errors++; break;
845 case 0x1000: dev->stats.rx_frame_errors++; break;
846 case 0x1800: dev->stats.rx_length_errors++; break;
847 case 0x2000: dev->stats.rx_frame_errors++; break;
848 case 0x2800: dev->stats.rx_crc_errors++; break;
851 short pkt_len = rx_status & 0x7ff;
854 skb = dev_alloc_skb(pkt_len+5);
856 netdev_dbg(dev, " Receiving packet size %d status %4.4x.\n",
860 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
862 skb->protocol = eth_type_trans(skb, dev);
864 dev->stats.rx_packets++;
865 dev->stats.rx_bytes += pkt_len;
867 netdev_dbg(dev, "couldn't allocate a sk_buff of size %d.\n",
869 dev->stats.rx_dropped++;
872 /* Pop the top of the Rx FIFO */
873 tc589_wait_for_completion(dev, RxDiscard);
876 netdev_warn(dev, "too much work in el3_rx!\n");
880 static void set_rx_mode(struct net_device *dev)
882 unsigned int ioaddr = dev->base_addr;
883 u16 opts = SetRxFilter | RxStation | RxBroadcast;
885 if (dev->flags & IFF_PROMISC)
886 opts |= RxMulticast | RxProm;
887 else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
889 outw(opts, ioaddr + EL3_CMD);
892 static void set_multicast_list(struct net_device *dev)
894 struct el3_private *priv = netdev_priv(dev);
897 spin_lock_irqsave(&priv->lock, flags);
899 spin_unlock_irqrestore(&priv->lock, flags);
902 static int el3_close(struct net_device *dev)
904 struct el3_private *lp = netdev_priv(dev);
905 struct pcmcia_device *link = lp->p_dev;
906 unsigned int ioaddr = dev->base_addr;
908 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
910 if (pcmcia_dev_present(link)) {
911 /* Turn off statistics ASAP. We update dev->stats below. */
912 outw(StatsDisable, ioaddr + EL3_CMD);
914 /* Disable the receiver and transmitter. */
915 outw(RxDisable, ioaddr + EL3_CMD);
916 outw(TxDisable, ioaddr + EL3_CMD);
918 if (dev->if_port == 2)
919 /* Turn off thinnet power. Green! */
920 outw(StopCoax, ioaddr + EL3_CMD);
921 else if (dev->if_port == 1) {
922 /* Disable link beat and jabber */
924 outw(0, ioaddr + WN4_MEDIA);
927 /* Switching back to window 0 disables the IRQ. */
929 /* But we explicitly zero the IRQ line select anyway. */
930 outw(0x0f00, ioaddr + WN0_IRQ);
932 /* Check if the card still exists */
933 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
938 netif_stop_queue(dev);
939 del_timer_sync(&lp->media);
944 static struct pcmcia_device_id tc589_ids[] = {
945 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
946 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
947 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
948 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
949 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
950 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
953 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
955 static struct pcmcia_driver tc589_driver = {
956 .owner = THIS_MODULE,
960 .probe = tc589_probe,
961 .remove = tc589_detach,
962 .id_table = tc589_ids,
963 .suspend = tc589_suspend,
964 .resume = tc589_resume,
967 static int __init init_tc589(void)
969 return pcmcia_register_driver(&tc589_driver);
972 static void __exit exit_tc589(void)
974 pcmcia_unregister_driver(&tc589_driver);
977 module_init(init_tc589);
978 module_exit(exit_tc589);