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. */
72 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
73 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
74 TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
75 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
76 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
77 SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
78 StatsDisable = 22<<11, StopCoax = 23<<11,
82 IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
83 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
84 IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000
87 /* The SetRxFilter command accepts the following classes: */
89 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8
92 /* Register window 1 offsets, the window used in normal operation. */
95 #define RX_STATUS 0x08
96 #define TX_STATUS 0x0B
97 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
99 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
100 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
101 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
102 #define MEDIA_LED 0x0001 /* Enable link light on 3C589E cards. */
104 /* Time in jiffies before concluding Tx hung */
105 #define TX_TIMEOUT ((400*HZ)/1000)
108 struct pcmcia_device *p_dev;
109 /* For transceiver monitoring */
110 struct timer_list media;
113 unsigned long last_irq;
117 static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
119 /*====================================================================*/
121 /* Module parameters */
123 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
124 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
125 MODULE_LICENSE("GPL");
127 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
129 /* Special hook for setting if_port when module is loaded */
130 INT_MODULE_PARM(if_port, 0);
133 /*====================================================================*/
135 static int tc589_config(struct pcmcia_device *link);
136 static void tc589_release(struct pcmcia_device *link);
138 static u16 read_eeprom(unsigned int ioaddr, int index);
139 static void tc589_reset(struct net_device *dev);
140 static void media_check(unsigned long arg);
141 static int el3_config(struct net_device *dev, struct ifmap *map);
142 static int el3_open(struct net_device *dev);
143 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
144 struct net_device *dev);
145 static irqreturn_t el3_interrupt(int irq, void *dev_id);
146 static void update_stats(struct net_device *dev);
147 static struct net_device_stats *el3_get_stats(struct net_device *dev);
148 static int el3_rx(struct net_device *dev);
149 static int el3_close(struct net_device *dev);
150 static void el3_tx_timeout(struct net_device *dev);
151 static void set_rx_mode(struct net_device *dev);
152 static void set_multicast_list(struct net_device *dev);
153 static const struct ethtool_ops netdev_ethtool_ops;
155 static void tc589_detach(struct pcmcia_device *p_dev);
157 /*======================================================================
159 tc589_attach() creates an "instance" of the driver, allocating
160 local data structures for one device. The device is registered
163 ======================================================================*/
165 static const struct net_device_ops el3_netdev_ops = {
166 .ndo_open = el3_open,
167 .ndo_stop = el3_close,
168 .ndo_start_xmit = el3_start_xmit,
169 .ndo_tx_timeout = el3_tx_timeout,
170 .ndo_set_config = el3_config,
171 .ndo_get_stats = el3_get_stats,
172 .ndo_set_multicast_list = set_multicast_list,
173 .ndo_change_mtu = eth_change_mtu,
174 .ndo_set_mac_address = eth_mac_addr,
175 .ndo_validate_addr = eth_validate_addr,
178 static int tc589_probe(struct pcmcia_device *link)
180 struct el3_private *lp;
181 struct net_device *dev;
183 dev_dbg(&link->dev, "3c589_attach()\n");
185 /* Create new ethernet device */
186 dev = alloc_etherdev(sizeof(struct el3_private));
189 lp = netdev_priv(dev);
193 spin_lock_init(&lp->lock);
194 link->io.NumPorts1 = 16;
195 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
197 link->conf.Attributes = CONF_ENABLE_IRQ;
198 link->conf.IntType = INT_MEMORY_AND_IO;
199 link->conf.ConfigIndex = 1;
201 dev->netdev_ops = &el3_netdev_ops;
202 dev->watchdog_timeo = TX_TIMEOUT;
204 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
206 return tc589_config(link);
209 /*======================================================================
211 This deletes a driver "instance". The device is de-registered
212 with Card Services. If it has been released, all local data
213 structures are freed. Otherwise, the structures will be freed
214 when the device is released.
216 ======================================================================*/
218 static void tc589_detach(struct pcmcia_device *link)
220 struct net_device *dev = link->priv;
222 dev_dbg(&link->dev, "3c589_detach\n");
224 unregister_netdev(dev);
231 /*======================================================================
233 tc589_config() is scheduled to run after a CARD_INSERTION event
234 is received, to configure the PCMCIA socket, and to make the
235 ethernet device available to the system.
237 ======================================================================*/
239 static int tc589_config(struct pcmcia_device *link)
241 struct net_device *dev = link->priv;
243 int ret, i, j, multi = 0, fifo;
245 char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
249 dev_dbg(&link->dev, "3c589_config\n");
251 phys_addr = (__be16 *)dev->dev_addr;
252 /* Is this a 3c562? */
253 if (link->manf_id != MANFID_3COM)
254 printk(KERN_INFO "3c589_cs: hmmm, is this really a "
256 multi = (link->card_id == PRODID_3COM_3C562);
258 /* For the 3c562, the base address must be xx00-xx7f */
259 link->io.IOAddrLines = 16;
260 for (i = j = 0; j < 0x400; j += 0x10) {
261 if (multi && (j & 0x80)) continue;
262 link->io.BasePort1 = j ^ 0x300;
263 i = pcmcia_request_io(link, &link->io);
270 ret = pcmcia_request_irq(link, el3_interrupt);
274 ret = pcmcia_request_configuration(link, &link->conf);
278 dev->irq = link->irq;
279 dev->base_addr = link->io.BasePort1;
280 ioaddr = dev->base_addr;
283 /* The 3c589 has an extra EEPROM for configuration info, including
284 the hardware address. The 3c562 puts the address in the CIS. */
285 len = pcmcia_get_tuple(link, 0x88, &buf);
286 if (buf && len >= 6) {
287 for (i = 0; i < 3; i++)
288 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
291 kfree(buf); /* 0 < len < 6 */
292 for (i = 0; i < 3; i++)
293 phys_addr[i] = htons(read_eeprom(ioaddr, i));
294 if (phys_addr[0] == htons(0x6060)) {
295 printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
296 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
301 /* The address and resource configuration register aren't loaded from
302 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
303 outw(0x3f00, ioaddr + 8);
306 /* The if_port symbol can be set when the module is loaded */
307 if ((if_port >= 0) && (if_port <= 3))
308 dev->if_port = if_port;
310 printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
312 SET_NETDEV_DEV(dev, &link->dev);
314 if (register_netdev(dev) != 0) {
315 printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
319 printk(KERN_INFO "%s: 3Com 3c%s, io %#3lx, irq %d, "
321 dev->name, (multi ? "562" : "589"), dev->base_addr, dev->irq,
323 printk(KERN_INFO " %dK FIFO split %s Rx:Tx, %s xcvr\n",
324 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
325 if_names[dev->if_port]);
333 /*======================================================================
335 After a card is removed, tc589_release() will unregister the net
336 device, and release the PCMCIA configuration. If the device is
337 still open, this will be postponed until it is closed.
339 ======================================================================*/
341 static void tc589_release(struct pcmcia_device *link)
343 pcmcia_disable_device(link);
346 static int tc589_suspend(struct pcmcia_device *link)
348 struct net_device *dev = link->priv;
351 netif_device_detach(dev);
356 static int tc589_resume(struct pcmcia_device *link)
358 struct net_device *dev = link->priv;
362 netif_device_attach(dev);
368 /*====================================================================*/
371 Use this for commands that may take time to finish
373 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
376 outw(cmd, dev->base_addr + EL3_CMD);
378 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
380 printk(KERN_WARNING "%s: command 0x%04x did not complete!\n",
385 Read a word from the EEPROM using the regular EEPROM access register.
386 Assume that we are in register window zero.
388 static u16 read_eeprom(unsigned int ioaddr, int index)
391 outw(EEPROM_READ + index, ioaddr + 10);
392 /* Reading the eeprom takes 162 us */
393 for (i = 1620; i >= 0; i--)
394 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
396 return inw(ioaddr + 12);
400 Set transceiver type, perhaps to something other than what the user
401 specified in dev->if_port.
403 static void tc589_set_xcvr(struct net_device *dev, int if_port)
405 struct el3_private *lp = netdev_priv(dev);
406 unsigned int ioaddr = dev->base_addr;
410 case 0: case 1: outw(0, ioaddr + 6); break;
411 case 2: outw(3<<14, ioaddr + 6); break;
412 case 3: outw(1<<14, ioaddr + 6); break;
414 /* On PCMCIA, this just turns on the LED */
415 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
416 /* 10baseT interface, enable link beat and jabber check. */
418 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
421 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
423 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
426 static void dump_status(struct net_device *dev)
428 unsigned int ioaddr = dev->base_addr;
430 printk(KERN_INFO " irq status %04x, rx status %04x, tx status "
431 "%02x tx free %04x\n", inw(ioaddr+EL3_STATUS),
432 inw(ioaddr+RX_STATUS), inb(ioaddr+TX_STATUS),
433 inw(ioaddr+TX_FREE));
435 printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x"
436 " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
437 inw(ioaddr+0x08), inw(ioaddr+0x0a));
441 /* Reset and restore all of the 3c589 registers. */
442 static void tc589_reset(struct net_device *dev)
444 unsigned int ioaddr = dev->base_addr;
448 outw(0x0001, ioaddr + 4); /* Activate board. */
449 outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
451 /* Set the station address in window 2. */
453 for (i = 0; i < 6; i++)
454 outb(dev->dev_addr[i], ioaddr + i);
456 tc589_set_xcvr(dev, dev->if_port);
458 /* Switch to the stats window, and clear all stats by reading. */
459 outw(StatsDisable, ioaddr + EL3_CMD);
461 for (i = 0; i < 9; i++)
466 /* Switch to register set 1 for normal use. */
470 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
471 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
472 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
473 /* Allow status bits to be seen. */
474 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
475 /* Ack all pending events, and set active indicator mask. */
476 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
478 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
479 | AdapterFailure, ioaddr + EL3_CMD);
482 static void netdev_get_drvinfo(struct net_device *dev,
483 struct ethtool_drvinfo *info)
485 strcpy(info->driver, DRV_NAME);
486 strcpy(info->version, DRV_VERSION);
487 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
490 static const struct ethtool_ops netdev_ethtool_ops = {
491 .get_drvinfo = netdev_get_drvinfo,
494 static int el3_config(struct net_device *dev, struct ifmap *map)
496 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
497 if (map->port <= 3) {
498 dev->if_port = map->port;
499 printk(KERN_INFO "%s: switched to %s port\n",
500 dev->name, if_names[dev->if_port]);
501 tc589_set_xcvr(dev, dev->if_port);
508 static int el3_open(struct net_device *dev)
510 struct el3_private *lp = netdev_priv(dev);
511 struct pcmcia_device *link = lp->p_dev;
513 if (!pcmcia_dev_present(link))
517 netif_start_queue(dev);
520 init_timer(&lp->media);
521 lp->media.function = &media_check;
522 lp->media.data = (unsigned long) dev;
523 lp->media.expires = jiffies + HZ;
524 add_timer(&lp->media);
526 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
527 dev->name, inw(dev->base_addr + EL3_STATUS));
532 static void el3_tx_timeout(struct net_device *dev)
534 unsigned int ioaddr = dev->base_addr;
536 printk(KERN_WARNING "%s: Transmit timed out!\n", dev->name);
538 dev->stats.tx_errors++;
539 dev->trans_start = jiffies;
540 /* Issue TX_RESET and TX_START commands. */
541 tc589_wait_for_completion(dev, TxReset);
542 outw(TxEnable, ioaddr + EL3_CMD);
543 netif_wake_queue(dev);
546 static void pop_tx_status(struct net_device *dev)
548 unsigned int ioaddr = dev->base_addr;
551 /* Clear the Tx status stack. */
552 for (i = 32; i > 0; i--) {
553 u_char tx_status = inb(ioaddr + TX_STATUS);
554 if (!(tx_status & 0x84)) break;
555 /* reset transmitter on jabber error or underrun */
556 if (tx_status & 0x30)
557 tc589_wait_for_completion(dev, TxReset);
558 if (tx_status & 0x38) {
559 pr_debug("%s: transmit error: status 0x%02x\n",
560 dev->name, tx_status);
561 outw(TxEnable, ioaddr + EL3_CMD);
562 dev->stats.tx_aborted_errors++;
564 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
568 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
569 struct net_device *dev)
571 unsigned int ioaddr = dev->base_addr;
572 struct el3_private *priv = netdev_priv(dev);
575 pr_debug("%s: el3_start_xmit(length = %ld) called, "
576 "status %4.4x.\n", dev->name, (long)skb->len,
577 inw(ioaddr + EL3_STATUS));
579 spin_lock_irqsave(&priv->lock, flags);
581 dev->stats.tx_bytes += skb->len;
583 /* Put out the doubleword header... */
584 outw(skb->len, ioaddr + TX_FIFO);
585 outw(0x00, ioaddr + TX_FIFO);
586 /* ... and the packet rounded to a doubleword. */
587 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
589 dev->trans_start = jiffies;
590 if (inw(ioaddr + TX_FREE) <= 1536) {
591 netif_stop_queue(dev);
592 /* Interrupt us when the FIFO has room for max-sized packet. */
593 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
597 spin_unlock_irqrestore(&priv->lock, flags);
603 /* The EL3 interrupt handler. */
604 static irqreturn_t el3_interrupt(int irq, void *dev_id)
606 struct net_device *dev = (struct net_device *) dev_id;
607 struct el3_private *lp = netdev_priv(dev);
610 int i = 0, handled = 1;
612 if (!netif_device_present(dev))
615 ioaddr = dev->base_addr;
617 pr_debug("%s: interrupt, status %4.4x.\n",
618 dev->name, inw(ioaddr + EL3_STATUS));
620 spin_lock(&lp->lock);
621 while ((status = inw(ioaddr + EL3_STATUS)) &
622 (IntLatch | RxComplete | StatsFull)) {
623 if ((status & 0xe000) != 0x2000) {
624 pr_debug("%s: interrupt from dead card\n", dev->name);
629 if (status & RxComplete)
632 if (status & TxAvailable) {
633 pr_debug(" TX room bit was handled.\n");
634 /* There's room in the FIFO for a full-sized packet. */
635 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
636 netif_wake_queue(dev);
639 if (status & TxComplete)
642 if (status & (AdapterFailure | RxEarly | StatsFull)) {
643 /* Handle all uncommon interrupts. */
644 if (status & StatsFull) /* Empty statistics. */
646 if (status & RxEarly) { /* Rx early is unused. */
648 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
650 if (status & AdapterFailure) {
653 fifo_diag = inw(ioaddr + 4);
655 printk(KERN_WARNING "%s: adapter failure, FIFO diagnostic"
656 " register %04x.\n", dev->name, fifo_diag);
657 if (fifo_diag & 0x0400) {
659 tc589_wait_for_completion(dev, TxReset);
660 outw(TxEnable, ioaddr + EL3_CMD);
662 if (fifo_diag & 0x2000) {
664 tc589_wait_for_completion(dev, RxReset);
666 outw(RxEnable, ioaddr + EL3_CMD);
668 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
673 printk(KERN_ERR "%s: infinite loop in interrupt, "
674 "status %4.4x.\n", dev->name, status);
675 /* Clear all interrupts */
676 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
679 /* Acknowledge the IRQ. */
680 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
683 lp->last_irq = jiffies;
684 spin_unlock(&lp->lock);
685 pr_debug("%s: exiting interrupt, status %4.4x.\n",
686 dev->name, inw(ioaddr + EL3_STATUS));
687 return IRQ_RETVAL(handled);
690 static void media_check(unsigned long arg)
692 struct net_device *dev = (struct net_device *)(arg);
693 struct el3_private *lp = netdev_priv(dev);
694 unsigned int ioaddr = dev->base_addr;
698 if (!netif_device_present(dev)) goto reschedule;
700 /* Check for pending interrupt with expired latency timer: with
701 this, we can limp along even if the interrupt is blocked */
702 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
703 (inb(ioaddr + EL3_TIMER) == 0xff)) {
705 printk(KERN_WARNING "%s: interrupt(s) dropped!\n", dev->name);
707 local_irq_save(flags);
708 el3_interrupt(dev->irq, dev);
709 local_irq_restore(flags);
715 lp->media.expires = jiffies + HZ/100;
716 add_timer(&lp->media);
720 /* lp->lock guards the EL3 window. Window should always be 1 except
721 when the lock is held */
722 spin_lock_irqsave(&lp->lock, flags);
724 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
726 /* Ignore collisions unless we've had no irq's recently */
727 if (time_before(jiffies, lp->last_irq + HZ)) {
730 /* Try harder to detect carrier errors */
732 outw(StatsDisable, ioaddr + EL3_CMD);
733 errs = inb(ioaddr + 0);
734 outw(StatsEnable, ioaddr + EL3_CMD);
735 dev->stats.tx_carrier_errors += errs;
736 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
739 if (media != lp->media_status) {
740 if ((media & lp->media_status & 0x8000) &&
741 ((lp->media_status ^ media) & 0x0800))
742 printk(KERN_INFO "%s: %s link beat\n", dev->name,
743 (lp->media_status & 0x0800 ? "lost" : "found"));
744 else if ((media & lp->media_status & 0x4000) &&
745 ((lp->media_status ^ media) & 0x0010))
746 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
747 (lp->media_status & 0x0010 ? "ok" : "problem"));
748 if (dev->if_port == 0) {
749 if (media & 0x8000) {
751 printk(KERN_INFO "%s: flipped to 10baseT\n",
754 tc589_set_xcvr(dev, 2);
755 } else if (media & 0x4000) {
757 tc589_set_xcvr(dev, 1);
759 printk(KERN_INFO "%s: flipped to 10base2\n",
763 lp->media_status = media;
767 spin_unlock_irqrestore(&lp->lock, flags);
770 lp->media.expires = jiffies + HZ;
771 add_timer(&lp->media);
774 static struct net_device_stats *el3_get_stats(struct net_device *dev)
776 struct el3_private *lp = netdev_priv(dev);
778 struct pcmcia_device *link = lp->p_dev;
780 if (pcmcia_dev_present(link)) {
781 spin_lock_irqsave(&lp->lock, flags);
783 spin_unlock_irqrestore(&lp->lock, flags);
789 Update statistics. We change to register window 6, so this should be run
790 single-threaded if the device is active. This is expected to be a rare
791 operation, and it's simpler for the rest of the driver to assume that
792 window 1 is always valid rather than use a special window-state variable.
794 Caller must hold the lock for this
796 static void update_stats(struct net_device *dev)
798 unsigned int ioaddr = dev->base_addr;
800 pr_debug("%s: updating the statistics.\n", dev->name);
801 /* Turn off statistics updates while reading. */
802 outw(StatsDisable, ioaddr + EL3_CMD);
803 /* Switch to the stats window, and read everything. */
805 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
806 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
807 /* Multiple collisions. */ inb(ioaddr + 2);
808 dev->stats.collisions += inb(ioaddr + 3);
809 dev->stats.tx_window_errors += inb(ioaddr + 4);
810 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
811 dev->stats.tx_packets += inb(ioaddr + 6);
812 /* Rx packets */ inb(ioaddr + 7);
813 /* Tx deferrals */ inb(ioaddr + 8);
814 /* Rx octets */ inw(ioaddr + 10);
815 /* Tx octets */ inw(ioaddr + 12);
817 /* Back to window 1, and turn statistics back on. */
819 outw(StatsEnable, ioaddr + EL3_CMD);
822 static int el3_rx(struct net_device *dev)
824 unsigned int ioaddr = dev->base_addr;
828 pr_debug("%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
829 dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
830 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
833 if (rx_status & 0x4000) { /* Error, update stats. */
834 short error = rx_status & 0x3800;
835 dev->stats.rx_errors++;
837 case 0x0000: dev->stats.rx_over_errors++; break;
838 case 0x0800: dev->stats.rx_length_errors++; break;
839 case 0x1000: dev->stats.rx_frame_errors++; break;
840 case 0x1800: dev->stats.rx_length_errors++; break;
841 case 0x2000: dev->stats.rx_frame_errors++; break;
842 case 0x2800: dev->stats.rx_crc_errors++; break;
845 short pkt_len = rx_status & 0x7ff;
848 skb = dev_alloc_skb(pkt_len+5);
850 pr_debug(" Receiving packet size %d status %4.4x.\n",
854 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
856 skb->protocol = eth_type_trans(skb, dev);
858 dev->stats.rx_packets++;
859 dev->stats.rx_bytes += pkt_len;
861 pr_debug("%s: couldn't allocate a sk_buff of"
862 " size %d.\n", dev->name, pkt_len);
863 dev->stats.rx_dropped++;
866 /* Pop the top of the Rx FIFO */
867 tc589_wait_for_completion(dev, RxDiscard);
870 printk(KERN_WARNING "%s: too much work in el3_rx!\n", dev->name);
874 static void set_rx_mode(struct net_device *dev)
876 unsigned int ioaddr = dev->base_addr;
877 u16 opts = SetRxFilter | RxStation | RxBroadcast;
879 if (dev->flags & IFF_PROMISC)
880 opts |= RxMulticast | RxProm;
881 else if (!netdev_mc_empty(dev) || (dev->flags & IFF_ALLMULTI))
883 outw(opts, ioaddr + EL3_CMD);
886 static void set_multicast_list(struct net_device *dev)
888 struct el3_private *priv = netdev_priv(dev);
891 spin_lock_irqsave(&priv->lock, flags);
893 spin_unlock_irqrestore(&priv->lock, flags);
896 static int el3_close(struct net_device *dev)
898 struct el3_private *lp = netdev_priv(dev);
899 struct pcmcia_device *link = lp->p_dev;
900 unsigned int ioaddr = dev->base_addr;
902 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
904 if (pcmcia_dev_present(link)) {
905 /* Turn off statistics ASAP. We update dev->stats below. */
906 outw(StatsDisable, ioaddr + EL3_CMD);
908 /* Disable the receiver and transmitter. */
909 outw(RxDisable, ioaddr + EL3_CMD);
910 outw(TxDisable, ioaddr + EL3_CMD);
912 if (dev->if_port == 2)
913 /* Turn off thinnet power. Green! */
914 outw(StopCoax, ioaddr + EL3_CMD);
915 else if (dev->if_port == 1) {
916 /* Disable link beat and jabber */
918 outw(0, ioaddr + WN4_MEDIA);
921 /* Switching back to window 0 disables the IRQ. */
923 /* But we explicitly zero the IRQ line select anyway. */
924 outw(0x0f00, ioaddr + WN0_IRQ);
926 /* Check if the card still exists */
927 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
932 netif_stop_queue(dev);
933 del_timer_sync(&lp->media);
938 static struct pcmcia_device_id tc589_ids[] = {
939 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
940 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
941 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
942 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
943 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
944 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
947 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
949 static struct pcmcia_driver tc589_driver = {
950 .owner = THIS_MODULE,
954 .probe = tc589_probe,
955 .remove = tc589_detach,
956 .id_table = tc589_ids,
957 .suspend = tc589_suspend,
958 .resume = tc589_resume,
961 static int __init init_tc589(void)
963 return pcmcia_register_driver(&tc589_driver);
966 static void __exit exit_tc589(void)
968 pcmcia_unregister_driver(&tc589_driver);
971 module_init(init_tc589);
972 module_exit(exit_tc589);