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;
110 /* For transceiver monitoring */
111 struct timer_list media;
114 unsigned long last_irq;
118 static const char *if_names[] = { "auto", "10baseT", "10base2", "AUI" };
120 /*====================================================================*/
122 /* Module parameters */
124 MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
125 MODULE_DESCRIPTION("3Com 3c589 series PCMCIA ethernet driver");
126 MODULE_LICENSE("GPL");
128 #define INT_MODULE_PARM(n, v) static int n = v; module_param(n, int, 0)
130 /* Special hook for setting if_port when module is loaded */
131 INT_MODULE_PARM(if_port, 0);
134 /*====================================================================*/
136 static int tc589_config(struct pcmcia_device *link);
137 static void tc589_release(struct pcmcia_device *link);
139 static u16 read_eeprom(unsigned int ioaddr, int index);
140 static void tc589_reset(struct net_device *dev);
141 static void media_check(unsigned long arg);
142 static int el3_config(struct net_device *dev, struct ifmap *map);
143 static int el3_open(struct net_device *dev);
144 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
145 struct net_device *dev);
146 static irqreturn_t el3_interrupt(int irq, void *dev_id);
147 static void update_stats(struct net_device *dev);
148 static struct net_device_stats *el3_get_stats(struct net_device *dev);
149 static int el3_rx(struct net_device *dev);
150 static int el3_close(struct net_device *dev);
151 static void el3_tx_timeout(struct net_device *dev);
152 static void set_rx_mode(struct net_device *dev);
153 static void set_multicast_list(struct net_device *dev);
154 static const struct ethtool_ops netdev_ethtool_ops;
156 static void tc589_detach(struct pcmcia_device *p_dev);
158 /*======================================================================
160 tc589_attach() creates an "instance" of the driver, allocating
161 local data structures for one device. The device is registered
164 ======================================================================*/
166 static const struct net_device_ops el3_netdev_ops = {
167 .ndo_open = el3_open,
168 .ndo_stop = el3_close,
169 .ndo_start_xmit = el3_start_xmit,
170 .ndo_tx_timeout = el3_tx_timeout,
171 .ndo_set_config = el3_config,
172 .ndo_get_stats = el3_get_stats,
173 .ndo_set_multicast_list = set_multicast_list,
174 .ndo_change_mtu = eth_change_mtu,
175 .ndo_set_mac_address = eth_mac_addr,
176 .ndo_validate_addr = eth_validate_addr,
179 static int tc589_probe(struct pcmcia_device *link)
181 struct el3_private *lp;
182 struct net_device *dev;
184 dev_dbg(&link->dev, "3c589_attach()\n");
186 /* Create new ethernet device */
187 dev = alloc_etherdev(sizeof(struct el3_private));
190 lp = netdev_priv(dev);
194 spin_lock_init(&lp->lock);
195 link->io.NumPorts1 = 16;
196 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
197 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING;
198 link->irq.Handler = &el3_interrupt;
199 link->conf.Attributes = CONF_ENABLE_IRQ;
200 link->conf.IntType = INT_MEMORY_AND_IO;
201 link->conf.ConfigIndex = 1;
203 dev->netdev_ops = &el3_netdev_ops;
204 dev->watchdog_timeo = TX_TIMEOUT;
206 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
208 return tc589_config(link);
211 /*======================================================================
213 This deletes a driver "instance". The device is de-registered
214 with Card Services. If it has been released, all local data
215 structures are freed. Otherwise, the structures will be freed
216 when the device is released.
218 ======================================================================*/
220 static void tc589_detach(struct pcmcia_device *link)
222 struct net_device *dev = link->priv;
224 dev_dbg(&link->dev, "3c589_detach\n");
227 unregister_netdev(dev);
234 /*======================================================================
236 tc589_config() is scheduled to run after a CARD_INSERTION event
237 is received, to configure the PCMCIA socket, and to make the
238 ethernet device available to the system.
240 ======================================================================*/
242 static int tc589_config(struct pcmcia_device *link)
244 struct net_device *dev = link->priv;
245 struct el3_private *lp = netdev_priv(dev);
247 int ret, i, j, multi = 0, fifo;
249 char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
253 dev_dbg(&link->dev, "3c589_config\n");
255 phys_addr = (__be16 *)dev->dev_addr;
256 /* Is this a 3c562? */
257 if (link->manf_id != MANFID_3COM)
258 printk(KERN_INFO "3c589_cs: hmmm, is this really a "
260 multi = (link->card_id == PRODID_3COM_3C562);
262 /* For the 3c562, the base address must be xx00-xx7f */
263 link->io.IOAddrLines = 16;
264 for (i = j = 0; j < 0x400; j += 0x10) {
265 if (multi && (j & 0x80)) continue;
266 link->io.BasePort1 = j ^ 0x300;
267 i = pcmcia_request_io(link, &link->io);
274 ret = pcmcia_request_irq(link, &link->irq);
278 ret = pcmcia_request_configuration(link, &link->conf);
282 dev->irq = link->irq.AssignedIRQ;
283 dev->base_addr = link->io.BasePort1;
284 ioaddr = dev->base_addr;
287 /* The 3c589 has an extra EEPROM for configuration info, including
288 the hardware address. The 3c562 puts the address in the CIS. */
289 len = pcmcia_get_tuple(link, 0x88, &buf);
290 if (buf && len >= 6) {
291 for (i = 0; i < 3; i++)
292 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
295 kfree(buf); /* 0 < len < 6 */
296 for (i = 0; i < 3; i++)
297 phys_addr[i] = htons(read_eeprom(ioaddr, i));
298 if (phys_addr[0] == htons(0x6060)) {
299 printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
300 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
305 /* The address and resource configuration register aren't loaded from
306 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
307 outw(0x3f00, ioaddr + 8);
310 /* The if_port symbol can be set when the module is loaded */
311 if ((if_port >= 0) && (if_port <= 3))
312 dev->if_port = if_port;
314 printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
316 link->dev_node = &lp->node;
317 SET_NETDEV_DEV(dev, &link->dev);
319 if (register_netdev(dev) != 0) {
320 printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
321 link->dev_node = NULL;
325 strcpy(lp->node.dev_name, dev->name);
327 printk(KERN_INFO "%s: 3Com 3c%s, io %#3lx, irq %d, "
329 dev->name, (multi ? "562" : "589"), dev->base_addr, dev->irq,
331 printk(KERN_INFO " %dK FIFO split %s Rx:Tx, %s xcvr\n",
332 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
333 if_names[dev->if_port]);
341 /*======================================================================
343 After a card is removed, tc589_release() will unregister the net
344 device, and release the PCMCIA configuration. If the device is
345 still open, this will be postponed until it is closed.
347 ======================================================================*/
349 static void tc589_release(struct pcmcia_device *link)
351 pcmcia_disable_device(link);
354 static int tc589_suspend(struct pcmcia_device *link)
356 struct net_device *dev = link->priv;
359 netif_device_detach(dev);
364 static int tc589_resume(struct pcmcia_device *link)
366 struct net_device *dev = link->priv;
370 netif_device_attach(dev);
376 /*====================================================================*/
379 Use this for commands that may take time to finish
381 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
384 outw(cmd, dev->base_addr + EL3_CMD);
386 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
388 printk(KERN_WARNING "%s: command 0x%04x did not complete!\n",
393 Read a word from the EEPROM using the regular EEPROM access register.
394 Assume that we are in register window zero.
396 static u16 read_eeprom(unsigned int ioaddr, int index)
399 outw(EEPROM_READ + index, ioaddr + 10);
400 /* Reading the eeprom takes 162 us */
401 for (i = 1620; i >= 0; i--)
402 if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0)
404 return inw(ioaddr + 12);
408 Set transceiver type, perhaps to something other than what the user
409 specified in dev->if_port.
411 static void tc589_set_xcvr(struct net_device *dev, int if_port)
413 struct el3_private *lp = netdev_priv(dev);
414 unsigned int ioaddr = dev->base_addr;
418 case 0: case 1: outw(0, ioaddr + 6); break;
419 case 2: outw(3<<14, ioaddr + 6); break;
420 case 3: outw(1<<14, ioaddr + 6); break;
422 /* On PCMCIA, this just turns on the LED */
423 outw((if_port == 2) ? StartCoax : StopCoax, ioaddr + EL3_CMD);
424 /* 10baseT interface, enable link beat and jabber check. */
426 outw(MEDIA_LED | ((if_port < 2) ? MEDIA_TP : 0), ioaddr + WN4_MEDIA);
429 lp->media_status = ((dev->if_port == 0) ? 0x8000 : 0x4000);
431 lp->media_status = ((dev->if_port == 0) ? 0x4010 : 0x8800);
434 static void dump_status(struct net_device *dev)
436 unsigned int ioaddr = dev->base_addr;
438 printk(KERN_INFO " irq status %04x, rx status %04x, tx status "
439 "%02x tx free %04x\n", inw(ioaddr+EL3_STATUS),
440 inw(ioaddr+RX_STATUS), inb(ioaddr+TX_STATUS),
441 inw(ioaddr+TX_FREE));
443 printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x"
444 " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
445 inw(ioaddr+0x08), inw(ioaddr+0x0a));
449 /* Reset and restore all of the 3c589 registers. */
450 static void tc589_reset(struct net_device *dev)
452 unsigned int ioaddr = dev->base_addr;
456 outw(0x0001, ioaddr + 4); /* Activate board. */
457 outw(0x3f00, ioaddr + 8); /* Set the IRQ line. */
459 /* Set the station address in window 2. */
461 for (i = 0; i < 6; i++)
462 outb(dev->dev_addr[i], ioaddr + i);
464 tc589_set_xcvr(dev, dev->if_port);
466 /* Switch to the stats window, and clear all stats by reading. */
467 outw(StatsDisable, ioaddr + EL3_CMD);
469 for (i = 0; i < 9; i++)
474 /* Switch to register set 1 for normal use. */
478 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
479 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
480 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
481 /* Allow status bits to be seen. */
482 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
483 /* Ack all pending events, and set active indicator mask. */
484 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
486 outw(SetIntrEnb | IntLatch | TxAvailable | RxComplete | StatsFull
487 | AdapterFailure, ioaddr + EL3_CMD);
490 static void netdev_get_drvinfo(struct net_device *dev,
491 struct ethtool_drvinfo *info)
493 strcpy(info->driver, DRV_NAME);
494 strcpy(info->version, DRV_VERSION);
495 sprintf(info->bus_info, "PCMCIA 0x%lx", dev->base_addr);
498 static const struct ethtool_ops netdev_ethtool_ops = {
499 .get_drvinfo = netdev_get_drvinfo,
502 static int el3_config(struct net_device *dev, struct ifmap *map)
504 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
505 if (map->port <= 3) {
506 dev->if_port = map->port;
507 printk(KERN_INFO "%s: switched to %s port\n",
508 dev->name, if_names[dev->if_port]);
509 tc589_set_xcvr(dev, dev->if_port);
516 static int el3_open(struct net_device *dev)
518 struct el3_private *lp = netdev_priv(dev);
519 struct pcmcia_device *link = lp->p_dev;
521 if (!pcmcia_dev_present(link))
525 netif_start_queue(dev);
528 init_timer(&lp->media);
529 lp->media.function = &media_check;
530 lp->media.data = (unsigned long) dev;
531 lp->media.expires = jiffies + HZ;
532 add_timer(&lp->media);
534 dev_dbg(&link->dev, "%s: opened, status %4.4x.\n",
535 dev->name, inw(dev->base_addr + EL3_STATUS));
540 static void el3_tx_timeout(struct net_device *dev)
542 unsigned int ioaddr = dev->base_addr;
544 printk(KERN_WARNING "%s: Transmit timed out!\n", dev->name);
546 dev->stats.tx_errors++;
547 dev->trans_start = jiffies;
548 /* Issue TX_RESET and TX_START commands. */
549 tc589_wait_for_completion(dev, TxReset);
550 outw(TxEnable, ioaddr + EL3_CMD);
551 netif_wake_queue(dev);
554 static void pop_tx_status(struct net_device *dev)
556 unsigned int ioaddr = dev->base_addr;
559 /* Clear the Tx status stack. */
560 for (i = 32; i > 0; i--) {
561 u_char tx_status = inb(ioaddr + TX_STATUS);
562 if (!(tx_status & 0x84)) break;
563 /* reset transmitter on jabber error or underrun */
564 if (tx_status & 0x30)
565 tc589_wait_for_completion(dev, TxReset);
566 if (tx_status & 0x38) {
567 pr_debug("%s: transmit error: status 0x%02x\n",
568 dev->name, tx_status);
569 outw(TxEnable, ioaddr + EL3_CMD);
570 dev->stats.tx_aborted_errors++;
572 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
576 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
577 struct net_device *dev)
579 unsigned int ioaddr = dev->base_addr;
580 struct el3_private *priv = netdev_priv(dev);
583 pr_debug("%s: el3_start_xmit(length = %ld) called, "
584 "status %4.4x.\n", dev->name, (long)skb->len,
585 inw(ioaddr + EL3_STATUS));
587 spin_lock_irqsave(&priv->lock, flags);
589 dev->stats.tx_bytes += skb->len;
591 /* Put out the doubleword header... */
592 outw(skb->len, ioaddr + TX_FIFO);
593 outw(0x00, ioaddr + TX_FIFO);
594 /* ... and the packet rounded to a doubleword. */
595 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
597 dev->trans_start = jiffies;
598 if (inw(ioaddr + TX_FREE) <= 1536) {
599 netif_stop_queue(dev);
600 /* Interrupt us when the FIFO has room for max-sized packet. */
601 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
605 spin_unlock_irqrestore(&priv->lock, flags);
611 /* The EL3 interrupt handler. */
612 static irqreturn_t el3_interrupt(int irq, void *dev_id)
614 struct net_device *dev = (struct net_device *) dev_id;
615 struct el3_private *lp = netdev_priv(dev);
618 int i = 0, handled = 1;
620 if (!netif_device_present(dev))
623 ioaddr = dev->base_addr;
625 pr_debug("%s: interrupt, status %4.4x.\n",
626 dev->name, inw(ioaddr + EL3_STATUS));
628 spin_lock(&lp->lock);
629 while ((status = inw(ioaddr + EL3_STATUS)) &
630 (IntLatch | RxComplete | StatsFull)) {
631 if ((status & 0xe000) != 0x2000) {
632 pr_debug("%s: interrupt from dead card\n", dev->name);
637 if (status & RxComplete)
640 if (status & TxAvailable) {
641 pr_debug(" TX room bit was handled.\n");
642 /* There's room in the FIFO for a full-sized packet. */
643 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
644 netif_wake_queue(dev);
647 if (status & TxComplete)
650 if (status & (AdapterFailure | RxEarly | StatsFull)) {
651 /* Handle all uncommon interrupts. */
652 if (status & StatsFull) /* Empty statistics. */
654 if (status & RxEarly) { /* Rx early is unused. */
656 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
658 if (status & AdapterFailure) {
661 fifo_diag = inw(ioaddr + 4);
663 printk(KERN_WARNING "%s: adapter failure, FIFO diagnostic"
664 " register %04x.\n", dev->name, fifo_diag);
665 if (fifo_diag & 0x0400) {
667 tc589_wait_for_completion(dev, TxReset);
668 outw(TxEnable, ioaddr + EL3_CMD);
670 if (fifo_diag & 0x2000) {
672 tc589_wait_for_completion(dev, RxReset);
674 outw(RxEnable, ioaddr + EL3_CMD);
676 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
681 printk(KERN_ERR "%s: infinite loop in interrupt, "
682 "status %4.4x.\n", dev->name, status);
683 /* Clear all interrupts */
684 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
687 /* Acknowledge the IRQ. */
688 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
691 lp->last_irq = jiffies;
692 spin_unlock(&lp->lock);
693 pr_debug("%s: exiting interrupt, status %4.4x.\n",
694 dev->name, 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 printk(KERN_WARNING "%s: interrupt(s) dropped!\n", dev->name);
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 printk(KERN_INFO "%s: %s link beat\n", dev->name,
751 (lp->media_status & 0x0800 ? "lost" : "found"));
752 else if ((media & lp->media_status & 0x4000) &&
753 ((lp->media_status ^ media) & 0x0010))
754 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
755 (lp->media_status & 0x0010 ? "ok" : "problem"));
756 if (dev->if_port == 0) {
757 if (media & 0x8000) {
759 printk(KERN_INFO "%s: flipped to 10baseT\n",
762 tc589_set_xcvr(dev, 2);
763 } else if (media & 0x4000) {
765 tc589_set_xcvr(dev, 1);
767 printk(KERN_INFO "%s: flipped to 10base2\n",
771 lp->media_status = media;
775 spin_unlock_irqrestore(&lp->lock, flags);
778 lp->media.expires = jiffies + HZ;
779 add_timer(&lp->media);
782 static struct net_device_stats *el3_get_stats(struct net_device *dev)
784 struct el3_private *lp = netdev_priv(dev);
786 struct pcmcia_device *link = lp->p_dev;
788 if (pcmcia_dev_present(link)) {
789 spin_lock_irqsave(&lp->lock, flags);
791 spin_unlock_irqrestore(&lp->lock, flags);
797 Update statistics. We change to register window 6, so this should be run
798 single-threaded if the device is active. This is expected to be a rare
799 operation, and it's simpler for the rest of the driver to assume that
800 window 1 is always valid rather than use a special window-state variable.
802 Caller must hold the lock for this
804 static void update_stats(struct net_device *dev)
806 unsigned int ioaddr = dev->base_addr;
808 pr_debug("%s: updating the statistics.\n", dev->name);
809 /* Turn off statistics updates while reading. */
810 outw(StatsDisable, ioaddr + EL3_CMD);
811 /* Switch to the stats window, and read everything. */
813 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
814 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
815 /* Multiple collisions. */ inb(ioaddr + 2);
816 dev->stats.collisions += inb(ioaddr + 3);
817 dev->stats.tx_window_errors += inb(ioaddr + 4);
818 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
819 dev->stats.tx_packets += inb(ioaddr + 6);
820 /* Rx packets */ inb(ioaddr + 7);
821 /* Tx deferrals */ inb(ioaddr + 8);
822 /* Rx octets */ inw(ioaddr + 10);
823 /* Tx octets */ inw(ioaddr + 12);
825 /* Back to window 1, and turn statistics back on. */
827 outw(StatsEnable, ioaddr + EL3_CMD);
830 static int el3_rx(struct net_device *dev)
832 unsigned int ioaddr = dev->base_addr;
836 pr_debug("%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
837 dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
838 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
841 if (rx_status & 0x4000) { /* Error, update stats. */
842 short error = rx_status & 0x3800;
843 dev->stats.rx_errors++;
845 case 0x0000: dev->stats.rx_over_errors++; break;
846 case 0x0800: dev->stats.rx_length_errors++; break;
847 case 0x1000: dev->stats.rx_frame_errors++; break;
848 case 0x1800: dev->stats.rx_length_errors++; break;
849 case 0x2000: dev->stats.rx_frame_errors++; break;
850 case 0x2800: dev->stats.rx_crc_errors++; break;
853 short pkt_len = rx_status & 0x7ff;
856 skb = dev_alloc_skb(pkt_len+5);
858 pr_debug(" Receiving packet size %d status %4.4x.\n",
862 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
864 skb->protocol = eth_type_trans(skb, dev);
866 dev->stats.rx_packets++;
867 dev->stats.rx_bytes += pkt_len;
869 pr_debug("%s: couldn't allocate a sk_buff of"
870 " size %d.\n", dev->name, pkt_len);
871 dev->stats.rx_dropped++;
874 /* Pop the top of the Rx FIFO */
875 tc589_wait_for_completion(dev, RxDiscard);
878 printk(KERN_WARNING "%s: too much work in el3_rx!\n", dev->name);
882 static void set_rx_mode(struct net_device *dev)
884 unsigned int ioaddr = dev->base_addr;
885 u16 opts = SetRxFilter | RxStation | RxBroadcast;
887 if (dev->flags & IFF_PROMISC)
888 opts |= RxMulticast | RxProm;
889 else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
891 outw(opts, ioaddr + EL3_CMD);
894 static void set_multicast_list(struct net_device *dev)
896 struct el3_private *priv = netdev_priv(dev);
899 spin_lock_irqsave(&priv->lock, flags);
901 spin_unlock_irqrestore(&priv->lock, flags);
904 static int el3_close(struct net_device *dev)
906 struct el3_private *lp = netdev_priv(dev);
907 struct pcmcia_device *link = lp->p_dev;
908 unsigned int ioaddr = dev->base_addr;
910 dev_dbg(&link->dev, "%s: shutting down ethercard.\n", dev->name);
912 if (pcmcia_dev_present(link)) {
913 /* Turn off statistics ASAP. We update dev->stats below. */
914 outw(StatsDisable, ioaddr + EL3_CMD);
916 /* Disable the receiver and transmitter. */
917 outw(RxDisable, ioaddr + EL3_CMD);
918 outw(TxDisable, ioaddr + EL3_CMD);
920 if (dev->if_port == 2)
921 /* Turn off thinnet power. Green! */
922 outw(StopCoax, ioaddr + EL3_CMD);
923 else if (dev->if_port == 1) {
924 /* Disable link beat and jabber */
926 outw(0, ioaddr + WN4_MEDIA);
929 /* Switching back to window 0 disables the IRQ. */
931 /* But we explicitly zero the IRQ line select anyway. */
932 outw(0x0f00, ioaddr + WN0_IRQ);
934 /* Check if the card still exists */
935 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
940 netif_stop_queue(dev);
941 del_timer_sync(&lp->media);
946 static struct pcmcia_device_id tc589_ids[] = {
947 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
948 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
949 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
950 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
951 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
952 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
955 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
957 static struct pcmcia_driver tc589_driver = {
958 .owner = THIS_MODULE,
962 .probe = tc589_probe,
963 .remove = tc589_detach,
964 .id_table = tc589_ids,
965 .suspend = tc589_suspend,
966 .resume = tc589_resume,
969 static int __init init_tc589(void)
971 return pcmcia_register_driver(&tc589_driver);
974 static void __exit exit_tc589(void)
976 pcmcia_unregister_driver(&tc589_driver);
979 module_init(init_tc589);
980 module_exit(exit_tc589);