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 INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
135 #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
136 static char *version =
137 DRV_NAME ".c " DRV_VERSION " 2001/10/13 00:08:50 (David Hinds)";
139 #define DEBUG(n, args...)
142 /*====================================================================*/
144 static int tc589_config(struct pcmcia_device *link);
145 static void tc589_release(struct pcmcia_device *link);
147 static u16 read_eeprom(unsigned int ioaddr, int index);
148 static void tc589_reset(struct net_device *dev);
149 static void media_check(unsigned long arg);
150 static int el3_config(struct net_device *dev, struct ifmap *map);
151 static int el3_open(struct net_device *dev);
152 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
153 struct net_device *dev);
154 static irqreturn_t el3_interrupt(int irq, void *dev_id);
155 static void update_stats(struct net_device *dev);
156 static struct net_device_stats *el3_get_stats(struct net_device *dev);
157 static int el3_rx(struct net_device *dev);
158 static int el3_close(struct net_device *dev);
159 static void el3_tx_timeout(struct net_device *dev);
160 static void set_rx_mode(struct net_device *dev);
161 static void set_multicast_list(struct net_device *dev);
162 static const struct ethtool_ops netdev_ethtool_ops;
164 static void tc589_detach(struct pcmcia_device *p_dev);
166 /*======================================================================
168 tc589_attach() creates an "instance" of the driver, allocating
169 local data structures for one device. The device is registered
172 ======================================================================*/
174 static const struct net_device_ops el3_netdev_ops = {
175 .ndo_open = el3_open,
176 .ndo_stop = el3_close,
177 .ndo_start_xmit = el3_start_xmit,
178 .ndo_tx_timeout = el3_tx_timeout,
179 .ndo_set_config = el3_config,
180 .ndo_get_stats = el3_get_stats,
181 .ndo_set_multicast_list = set_multicast_list,
182 .ndo_change_mtu = eth_change_mtu,
183 .ndo_set_mac_address = eth_mac_addr,
184 .ndo_validate_addr = eth_validate_addr,
187 static int tc589_probe(struct pcmcia_device *link)
189 struct el3_private *lp;
190 struct net_device *dev;
192 DEBUG(0, "3c589_attach()\n");
194 /* Create new ethernet device */
195 dev = alloc_etherdev(sizeof(struct el3_private));
198 lp = netdev_priv(dev);
202 spin_lock_init(&lp->lock);
203 link->io.NumPorts1 = 16;
204 link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
205 link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING|IRQ_HANDLE_PRESENT;
206 link->irq.IRQInfo1 = IRQ_LEVEL_ID;
207 link->irq.Handler = &el3_interrupt;
208 link->irq.Instance = dev;
209 link->conf.Attributes = CONF_ENABLE_IRQ;
210 link->conf.IntType = INT_MEMORY_AND_IO;
211 link->conf.ConfigIndex = 1;
213 dev->netdev_ops = &el3_netdev_ops;
214 dev->watchdog_timeo = TX_TIMEOUT;
216 SET_ETHTOOL_OPS(dev, &netdev_ethtool_ops);
218 return tc589_config(link);
221 /*======================================================================
223 This deletes a driver "instance". The device is de-registered
224 with Card Services. If it has been released, all local data
225 structures are freed. Otherwise, the structures will be freed
226 when the device is released.
228 ======================================================================*/
230 static void tc589_detach(struct pcmcia_device *link)
232 struct net_device *dev = link->priv;
234 DEBUG(0, "3c589_detach(0x%p)\n", link);
237 unregister_netdev(dev);
244 /*======================================================================
246 tc589_config() is scheduled to run after a CARD_INSERTION event
247 is received, to configure the PCMCIA socket, and to make the
248 ethernet device available to the system.
250 ======================================================================*/
252 #define CS_CHECK(fn, ret) \
253 do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
255 static int tc589_config(struct pcmcia_device *link)
257 struct net_device *dev = link->priv;
258 struct el3_private *lp = netdev_priv(dev);
260 int last_fn, last_ret, i, j, multi = 0, fifo;
262 char *ram_split[] = {"5:3", "3:1", "1:1", "3:5"};
266 DEBUG(0, "3c589_config(0x%p)\n", link);
268 phys_addr = (__be16 *)dev->dev_addr;
269 /* Is this a 3c562? */
270 if (link->manf_id != MANFID_3COM)
271 printk(KERN_INFO "3c589_cs: hmmm, is this really a "
273 multi = (link->card_id == PRODID_3COM_3C562);
275 /* For the 3c562, the base address must be xx00-xx7f */
276 link->io.IOAddrLines = 16;
277 for (i = j = 0; j < 0x400; j += 0x10) {
278 if (multi && (j & 0x80)) continue;
279 link->io.BasePort1 = j ^ 0x300;
280 i = pcmcia_request_io(link, &link->io);
285 cs_error(link, RequestIO, i);
288 CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq));
289 CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf));
291 dev->irq = link->irq.AssignedIRQ;
292 dev->base_addr = link->io.BasePort1;
293 ioaddr = dev->base_addr;
296 /* The 3c589 has an extra EEPROM for configuration info, including
297 the hardware address. The 3c562 puts the address in the CIS. */
298 len = pcmcia_get_tuple(link, 0x88, &buf);
299 if (buf && len >= 6) {
300 for (i = 0; i < 3; i++)
301 phys_addr[i] = htons(le16_to_cpu(buf[i*2]));
304 kfree(buf); /* 0 < len < 6 */
305 for (i = 0; i < 3; i++)
306 phys_addr[i] = htons(read_eeprom(ioaddr, i));
307 if (phys_addr[0] == htons(0x6060)) {
308 printk(KERN_ERR "3c589_cs: IO port conflict at 0x%03lx"
309 "-0x%03lx\n", dev->base_addr, dev->base_addr+15);
314 /* The address and resource configuration register aren't loaded from
315 the EEPROM and *must* be set to 0 and IRQ3 for the PCMCIA version. */
316 outw(0x3f00, ioaddr + 8);
319 /* The if_port symbol can be set when the module is loaded */
320 if ((if_port >= 0) && (if_port <= 3))
321 dev->if_port = if_port;
323 printk(KERN_ERR "3c589_cs: invalid if_port requested\n");
325 link->dev_node = &lp->node;
326 SET_NETDEV_DEV(dev, &handle_to_dev(link));
328 if (register_netdev(dev) != 0) {
329 printk(KERN_ERR "3c589_cs: register_netdev() failed\n");
330 link->dev_node = NULL;
334 strcpy(lp->node.dev_name, dev->name);
336 printk(KERN_INFO "%s: 3Com 3c%s, io %#3lx, irq %d, "
338 dev->name, (multi ? "562" : "589"), dev->base_addr, dev->irq,
340 printk(KERN_INFO " %dK FIFO split %s Rx:Tx, %s xcvr\n",
341 (fifo & 7) ? 32 : 8, ram_split[(fifo >> 16) & 3],
342 if_names[dev->if_port]);
346 cs_error(link, last_fn, last_ret);
352 /*======================================================================
354 After a card is removed, tc589_release() will unregister the net
355 device, and release the PCMCIA configuration. If the device is
356 still open, this will be postponed until it is closed.
358 ======================================================================*/
360 static void tc589_release(struct pcmcia_device *link)
362 pcmcia_disable_device(link);
365 static int tc589_suspend(struct pcmcia_device *link)
367 struct net_device *dev = link->priv;
370 netif_device_detach(dev);
375 static int tc589_resume(struct pcmcia_device *link)
377 struct net_device *dev = link->priv;
381 netif_device_attach(dev);
387 /*====================================================================*/
390 Use this for commands that may take time to finish
392 static void tc589_wait_for_completion(struct net_device *dev, int cmd)
395 outw(cmd, dev->base_addr + EL3_CMD);
397 if (!(inw(dev->base_addr + EL3_STATUS) & 0x1000)) break;
399 printk(KERN_WARNING "%s: command 0x%04x did not complete!\n",
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 printk(KERN_INFO " irq status %04x, rx status %04x, tx status "
450 "%02x tx free %04x\n", inw(ioaddr+EL3_STATUS),
451 inw(ioaddr+RX_STATUS), inb(ioaddr+TX_STATUS),
452 inw(ioaddr+TX_FREE));
454 printk(KERN_INFO " diagnostics: fifo %04x net %04x ethernet %04x"
455 " media %04x\n", inw(ioaddr+0x04), inw(ioaddr+0x06),
456 inw(ioaddr+0x08), inw(ioaddr+0x0a));
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);
510 static u32 netdev_get_msglevel(struct net_device *dev)
515 static void netdev_set_msglevel(struct net_device *dev, u32 level)
519 #endif /* PCMCIA_DEBUG */
521 static const struct ethtool_ops netdev_ethtool_ops = {
522 .get_drvinfo = netdev_get_drvinfo,
524 .get_msglevel = netdev_get_msglevel,
525 .set_msglevel = netdev_set_msglevel,
526 #endif /* PCMCIA_DEBUG */
529 static int el3_config(struct net_device *dev, struct ifmap *map)
531 if ((map->port != (u_char)(-1)) && (map->port != dev->if_port)) {
532 if (map->port <= 3) {
533 dev->if_port = map->port;
534 printk(KERN_INFO "%s: switched to %s port\n",
535 dev->name, if_names[dev->if_port]);
536 tc589_set_xcvr(dev, dev->if_port);
543 static int el3_open(struct net_device *dev)
545 struct el3_private *lp = netdev_priv(dev);
546 struct pcmcia_device *link = lp->p_dev;
548 if (!pcmcia_dev_present(link))
552 netif_start_queue(dev);
555 init_timer(&lp->media);
556 lp->media.function = &media_check;
557 lp->media.data = (unsigned long) dev;
558 lp->media.expires = jiffies + HZ;
559 add_timer(&lp->media);
561 DEBUG(1, "%s: opened, status %4.4x.\n",
562 dev->name, inw(dev->base_addr + EL3_STATUS));
567 static void el3_tx_timeout(struct net_device *dev)
569 unsigned int ioaddr = dev->base_addr;
571 printk(KERN_WARNING "%s: Transmit timed out!\n", dev->name);
573 dev->stats.tx_errors++;
574 dev->trans_start = jiffies;
575 /* Issue TX_RESET and TX_START commands. */
576 tc589_wait_for_completion(dev, TxReset);
577 outw(TxEnable, ioaddr + EL3_CMD);
578 netif_wake_queue(dev);
581 static void pop_tx_status(struct net_device *dev)
583 unsigned int ioaddr = dev->base_addr;
586 /* Clear the Tx status stack. */
587 for (i = 32; i > 0; i--) {
588 u_char tx_status = inb(ioaddr + TX_STATUS);
589 if (!(tx_status & 0x84)) break;
590 /* reset transmitter on jabber error or underrun */
591 if (tx_status & 0x30)
592 tc589_wait_for_completion(dev, TxReset);
593 if (tx_status & 0x38) {
594 DEBUG(1, "%s: transmit error: status 0x%02x\n",
595 dev->name, tx_status);
596 outw(TxEnable, ioaddr + EL3_CMD);
597 dev->stats.tx_aborted_errors++;
599 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
603 static netdev_tx_t el3_start_xmit(struct sk_buff *skb,
604 struct net_device *dev)
606 unsigned int ioaddr = dev->base_addr;
607 struct el3_private *priv = netdev_priv(dev);
610 DEBUG(3, "%s: el3_start_xmit(length = %ld) called, "
611 "status %4.4x.\n", dev->name, (long)skb->len,
612 inw(ioaddr + EL3_STATUS));
614 spin_lock_irqsave(&priv->lock, flags);
616 dev->stats.tx_bytes += skb->len;
618 /* Put out the doubleword header... */
619 outw(skb->len, ioaddr + TX_FIFO);
620 outw(0x00, ioaddr + TX_FIFO);
621 /* ... and the packet rounded to a doubleword. */
622 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
624 dev->trans_start = jiffies;
625 if (inw(ioaddr + TX_FREE) <= 1536) {
626 netif_stop_queue(dev);
627 /* Interrupt us when the FIFO has room for max-sized packet. */
628 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
632 spin_unlock_irqrestore(&priv->lock, flags);
638 /* The EL3 interrupt handler. */
639 static irqreturn_t el3_interrupt(int irq, void *dev_id)
641 struct net_device *dev = (struct net_device *) dev_id;
642 struct el3_private *lp = netdev_priv(dev);
645 int i = 0, handled = 1;
647 if (!netif_device_present(dev))
650 ioaddr = dev->base_addr;
652 DEBUG(3, "%s: interrupt, status %4.4x.\n",
653 dev->name, inw(ioaddr + EL3_STATUS));
655 spin_lock(&lp->lock);
656 while ((status = inw(ioaddr + EL3_STATUS)) &
657 (IntLatch | RxComplete | StatsFull)) {
658 if ((status & 0xe000) != 0x2000) {
659 DEBUG(1, "%s: interrupt from dead card\n", dev->name);
664 if (status & RxComplete)
667 if (status & TxAvailable) {
668 DEBUG(3, " TX room bit was handled.\n");
669 /* There's room in the FIFO for a full-sized packet. */
670 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
671 netif_wake_queue(dev);
674 if (status & TxComplete)
677 if (status & (AdapterFailure | RxEarly | StatsFull)) {
678 /* Handle all uncommon interrupts. */
679 if (status & StatsFull) /* Empty statistics. */
681 if (status & RxEarly) { /* Rx early is unused. */
683 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
685 if (status & AdapterFailure) {
688 fifo_diag = inw(ioaddr + 4);
690 printk(KERN_WARNING "%s: adapter failure, FIFO diagnostic"
691 " register %04x.\n", dev->name, fifo_diag);
692 if (fifo_diag & 0x0400) {
694 tc589_wait_for_completion(dev, TxReset);
695 outw(TxEnable, ioaddr + EL3_CMD);
697 if (fifo_diag & 0x2000) {
699 tc589_wait_for_completion(dev, RxReset);
701 outw(RxEnable, ioaddr + EL3_CMD);
703 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
708 printk(KERN_ERR "%s: infinite loop in interrupt, "
709 "status %4.4x.\n", dev->name, status);
710 /* Clear all interrupts */
711 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
714 /* Acknowledge the IRQ. */
715 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD);
718 lp->last_irq = jiffies;
719 spin_unlock(&lp->lock);
720 DEBUG(3, "%s: exiting interrupt, status %4.4x.\n",
721 dev->name, inw(ioaddr + EL3_STATUS));
722 return IRQ_RETVAL(handled);
725 static void media_check(unsigned long arg)
727 struct net_device *dev = (struct net_device *)(arg);
728 struct el3_private *lp = netdev_priv(dev);
729 unsigned int ioaddr = dev->base_addr;
733 if (!netif_device_present(dev)) goto reschedule;
735 /* Check for pending interrupt with expired latency timer: with
736 this, we can limp along even if the interrupt is blocked */
737 if ((inw(ioaddr + EL3_STATUS) & IntLatch) &&
738 (inb(ioaddr + EL3_TIMER) == 0xff)) {
740 printk(KERN_WARNING "%s: interrupt(s) dropped!\n", dev->name);
741 el3_interrupt(dev->irq, dev);
746 lp->media.expires = jiffies + HZ/100;
747 add_timer(&lp->media);
751 /* lp->lock guards the EL3 window. Window should always be 1 except
752 when the lock is held */
753 spin_lock_irqsave(&lp->lock, flags);
755 media = inw(ioaddr+WN4_MEDIA) & 0xc810;
757 /* Ignore collisions unless we've had no irq's recently */
758 if (time_before(jiffies, lp->last_irq + HZ)) {
761 /* Try harder to detect carrier errors */
763 outw(StatsDisable, ioaddr + EL3_CMD);
764 errs = inb(ioaddr + 0);
765 outw(StatsEnable, ioaddr + EL3_CMD);
766 dev->stats.tx_carrier_errors += errs;
767 if (errs || (lp->media_status & 0x0010)) media |= 0x0010;
770 if (media != lp->media_status) {
771 if ((media & lp->media_status & 0x8000) &&
772 ((lp->media_status ^ media) & 0x0800))
773 printk(KERN_INFO "%s: %s link beat\n", dev->name,
774 (lp->media_status & 0x0800 ? "lost" : "found"));
775 else if ((media & lp->media_status & 0x4000) &&
776 ((lp->media_status ^ media) & 0x0010))
777 printk(KERN_INFO "%s: coax cable %s\n", dev->name,
778 (lp->media_status & 0x0010 ? "ok" : "problem"));
779 if (dev->if_port == 0) {
780 if (media & 0x8000) {
782 printk(KERN_INFO "%s: flipped to 10baseT\n",
785 tc589_set_xcvr(dev, 2);
786 } else if (media & 0x4000) {
788 tc589_set_xcvr(dev, 1);
790 printk(KERN_INFO "%s: flipped to 10base2\n",
794 lp->media_status = media;
798 spin_unlock_irqrestore(&lp->lock, flags);
801 lp->media.expires = jiffies + HZ;
802 add_timer(&lp->media);
805 static struct net_device_stats *el3_get_stats(struct net_device *dev)
807 struct el3_private *lp = netdev_priv(dev);
809 struct pcmcia_device *link = lp->p_dev;
811 if (pcmcia_dev_present(link)) {
812 spin_lock_irqsave(&lp->lock, flags);
814 spin_unlock_irqrestore(&lp->lock, flags);
820 Update statistics. We change to register window 6, so this should be run
821 single-threaded if the device is active. This is expected to be a rare
822 operation, and it's simpler for the rest of the driver to assume that
823 window 1 is always valid rather than use a special window-state variable.
825 Caller must hold the lock for this
827 static void update_stats(struct net_device *dev)
829 unsigned int ioaddr = dev->base_addr;
831 DEBUG(2, "%s: updating the statistics.\n", dev->name);
832 /* Turn off statistics updates while reading. */
833 outw(StatsDisable, ioaddr + EL3_CMD);
834 /* Switch to the stats window, and read everything. */
836 dev->stats.tx_carrier_errors += inb(ioaddr + 0);
837 dev->stats.tx_heartbeat_errors += inb(ioaddr + 1);
838 /* Multiple collisions. */ inb(ioaddr + 2);
839 dev->stats.collisions += inb(ioaddr + 3);
840 dev->stats.tx_window_errors += inb(ioaddr + 4);
841 dev->stats.rx_fifo_errors += inb(ioaddr + 5);
842 dev->stats.tx_packets += inb(ioaddr + 6);
843 /* Rx packets */ inb(ioaddr + 7);
844 /* Tx deferrals */ inb(ioaddr + 8);
845 /* Rx octets */ inw(ioaddr + 10);
846 /* Tx octets */ inw(ioaddr + 12);
848 /* Back to window 1, and turn statistics back on. */
850 outw(StatsEnable, ioaddr + EL3_CMD);
853 static int el3_rx(struct net_device *dev)
855 unsigned int ioaddr = dev->base_addr;
859 DEBUG(3, "%s: in rx_packet(), status %4.4x, rx_status %4.4x.\n",
860 dev->name, inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
861 while (!((rx_status = inw(ioaddr + RX_STATUS)) & 0x8000) &&
864 if (rx_status & 0x4000) { /* Error, update stats. */
865 short error = rx_status & 0x3800;
866 dev->stats.rx_errors++;
868 case 0x0000: dev->stats.rx_over_errors++; break;
869 case 0x0800: dev->stats.rx_length_errors++; break;
870 case 0x1000: dev->stats.rx_frame_errors++; break;
871 case 0x1800: dev->stats.rx_length_errors++; break;
872 case 0x2000: dev->stats.rx_frame_errors++; break;
873 case 0x2800: dev->stats.rx_crc_errors++; break;
876 short pkt_len = rx_status & 0x7ff;
879 skb = dev_alloc_skb(pkt_len+5);
881 DEBUG(3, " Receiving packet size %d status %4.4x.\n",
885 insl(ioaddr+RX_FIFO, skb_put(skb, pkt_len),
887 skb->protocol = eth_type_trans(skb, dev);
889 dev->stats.rx_packets++;
890 dev->stats.rx_bytes += pkt_len;
892 DEBUG(1, "%s: couldn't allocate a sk_buff of"
893 " size %d.\n", dev->name, pkt_len);
894 dev->stats.rx_dropped++;
897 /* Pop the top of the Rx FIFO */
898 tc589_wait_for_completion(dev, RxDiscard);
901 printk(KERN_WARNING "%s: too much work in el3_rx!\n", dev->name);
905 static void set_rx_mode(struct net_device *dev)
907 unsigned int ioaddr = dev->base_addr;
908 u16 opts = SetRxFilter | RxStation | RxBroadcast;
910 if (dev->flags & IFF_PROMISC)
911 opts |= RxMulticast | RxProm;
912 else if (dev->mc_count || (dev->flags & IFF_ALLMULTI))
914 outw(opts, ioaddr + EL3_CMD);
917 static void set_multicast_list(struct net_device *dev)
919 struct el3_private *priv = netdev_priv(dev);
922 spin_lock_irqsave(&priv->lock, flags);
924 spin_unlock_irqrestore(&priv->lock, flags);
927 static int el3_close(struct net_device *dev)
929 struct el3_private *lp = netdev_priv(dev);
930 struct pcmcia_device *link = lp->p_dev;
931 unsigned int ioaddr = dev->base_addr;
933 DEBUG(1, "%s: shutting down ethercard.\n", dev->name);
935 if (pcmcia_dev_present(link)) {
936 /* Turn off statistics ASAP. We update dev->stats below. */
937 outw(StatsDisable, ioaddr + EL3_CMD);
939 /* Disable the receiver and transmitter. */
940 outw(RxDisable, ioaddr + EL3_CMD);
941 outw(TxDisable, ioaddr + EL3_CMD);
943 if (dev->if_port == 2)
944 /* Turn off thinnet power. Green! */
945 outw(StopCoax, ioaddr + EL3_CMD);
946 else if (dev->if_port == 1) {
947 /* Disable link beat and jabber */
949 outw(0, ioaddr + WN4_MEDIA);
952 /* Switching back to window 0 disables the IRQ. */
954 /* But we explicitly zero the IRQ line select anyway. */
955 outw(0x0f00, ioaddr + WN0_IRQ);
957 /* Check if the card still exists */
958 if ((inw(ioaddr+EL3_STATUS) & 0xe000) == 0x2000)
963 netif_stop_queue(dev);
964 del_timer_sync(&lp->media);
969 static struct pcmcia_device_id tc589_ids[] = {
970 PCMCIA_MFC_DEVICE_MANF_CARD(0, 0x0101, 0x0562),
971 PCMCIA_MFC_DEVICE_PROD_ID1(0, "Motorola MARQUIS", 0xf03e4e77),
972 PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0589),
973 PCMCIA_DEVICE_PROD_ID12("Farallon", "ENet", 0x58d93fc4, 0x992c2202),
974 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x0035, "cis/3CXEM556.cis"),
975 PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0101, 0x003d, "cis/3CXEM556.cis"),
978 MODULE_DEVICE_TABLE(pcmcia, tc589_ids);
980 static struct pcmcia_driver tc589_driver = {
981 .owner = THIS_MODULE,
985 .probe = tc589_probe,
986 .remove = tc589_detach,
987 .id_table = tc589_ids,
988 .suspend = tc589_suspend,
989 .resume = tc589_resume,
992 static int __init init_tc589(void)
994 return pcmcia_register_driver(&tc589_driver);
997 static void __exit exit_tc589(void)
999 pcmcia_unregister_driver(&tc589_driver);
1002 module_init(init_tc589);
1003 module_exit(exit_tc589);