1 /* 3c509.c: A 3c509 EtherLink3 ethernet driver for linux. */
3 Written 1993-2000 by Donald Becker.
5 Copyright 1994-2000 by Donald Becker.
6 Copyright 1993 United States Government as represented by the
7 Director, National Security Agency. This software may be used and
8 distributed according to the terms of the GNU General Public License,
9 incorporated herein by reference.
11 This driver is for the 3Com EtherLinkIII series.
13 The author may be reached as becker@scyld.com, or C/O
14 Scyld Computing Corporation
15 410 Severn Ave., Suite 210
19 Because of the way 3c509 ISA detection works it's difficult to predict
20 a priori which of several ISA-mode cards will be detected first.
22 This driver does not use predictive interrupt mode, resulting in higher
23 packet latency but lower overhead. If interrupts are disabled for an
24 unusually long time it could also result in missed packets, but in
25 practice this rarely happens.
29 Alan Cox: Removed the 'Unexpected interrupt' bug.
30 Michael Meskes: Upgraded to Donald Becker's version 1.07.
31 Alan Cox: Increased the eeprom delay. Regardless of
32 what the docs say some people definitely
33 get problems with lower (but in card spec)
35 v1.10 4/21/97 Fixed module code so that multiple cards may be detected,
37 Andrea Arcangeli: Upgraded to Donald Becker's version 1.12.
38 Rick Payne: Fixed SMP race condition
39 v1.13 9/8/97 Made 'max_interrupt_work' an insmod-settable variable -djb
40 v1.14 10/15/97 Avoided waiting..discard message for fast machines -djb
41 v1.15 1/31/98 Faster recovery for Tx errors. -djb
42 v1.16 2/3/98 Different ID port handling to avoid sound cards. -djb
43 v1.18 12Mar2001 Andrew Morton <andrewm@uow.edu.au>
44 - Avoid bogus detect of 3c590's (Andrzej Krzysztofowicz)
45 - Reviewed against 1.18 from scyld.com
46 v1.18a 17Nov2001 Jeff Garzik <jgarzik@pobox.com>
48 v1.18b 1Mar2002 Zwane Mwaikambo <zwane@commfireservices.com>
49 - Power Management support
50 v1.18c 1Mar2002 David Ruggiero <jdr@farfalle.com>
52 v1.19 16Oct2002 Zwane Mwaikambo <zwane@linuxpower.ca>
53 - Additional ethtool features
54 v1.19a 28Oct2002 Davud Ruggiero <jdr@farfalle.com>
55 - Increase *read_eeprom udelay to workaround oops with 2 cards.
56 v1.19b 08Nov2002 Marc Zyngier <maz@wild-wind.fr.eu.org>
57 - Introduce driver model for EISA cards.
60 #define DRV_NAME "3c509"
61 #define DRV_VERSION "1.19b"
62 #define DRV_RELDATE "08Nov2002"
64 /* A few values that may be tweaked. */
66 /* Time in jiffies before concluding the transmitter is hung. */
67 #define TX_TIMEOUT (400*HZ/1000)
68 /* Maximum events (Rx packets, etc.) to handle at each interrupt. */
69 static int max_interrupt_work = 10;
71 #include <linux/module.h>
73 #include <linux/mca.h>
75 #include <linux/isapnp.h>
76 #include <linux/string.h>
77 #include <linux/interrupt.h>
78 #include <linux/errno.h>
80 #include <linux/slab.h>
81 #include <linux/ioport.h>
82 #include <linux/init.h>
83 #include <linux/netdevice.h>
84 #include <linux/etherdevice.h>
86 #include <linux/pm_legacy.h>
87 #include <linux/skbuff.h>
88 #include <linux/delay.h> /* for udelay() */
89 #include <linux/spinlock.h>
90 #include <linux/ethtool.h>
91 #include <linux/device.h>
92 #include <linux/eisa.h>
93 #include <linux/bitops.h>
95 #include <asm/uaccess.h>
99 static char versionA[] __initdata = DRV_NAME ".c:" DRV_VERSION " " DRV_RELDATE " becker@scyld.com\n";
100 static char versionB[] __initdata = "http://www.scyld.com/network/3c509.html\n";
102 #if defined(CONFIG_PM) && (defined(CONFIG_MCA) || defined(CONFIG_EISA))
107 static int el3_debug = EL3_DEBUG;
109 static int el3_debug = 2;
112 /* Used to do a global count of all the cards in the system. Must be
113 * a global variable so that the mca/eisa probe routines can increment
115 static int el3_cards = 0;
117 /* To minimize the size of the driver source I only define operating
118 constants if they are used several times. You'll need the manual
119 anyway if you want to understand driver details. */
120 /* Offsets from base I/O address. */
121 #define EL3_DATA 0x00
123 #define EL3_STATUS 0x0e
124 #define EEPROM_READ 0x80
126 #define EL3_IO_EXTENT 16
128 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
131 /* The top five bits written to EL3_CMD are a command, the lower
132 11 bits are the parameter, if applicable. */
134 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
135 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
136 TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
137 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
138 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
139 SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
140 StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11,
141 PowerDown = 28<<11, PowerAuto = 29<<11};
144 IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
145 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
146 IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, };
148 /* The SetRxFilter command accepts the following classes: */
150 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
152 /* Register window 1 offsets, the window used in normal operation. */
155 #define RX_STATUS 0x08
156 #define TX_STATUS 0x0B
157 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
159 #define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */
160 #define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */
161 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
162 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
163 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
164 #define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */
165 #define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */
168 * Must be a power of two (we use a binary and in the
171 #define SKB_QUEUE_SIZE 64
174 struct net_device_stats stats;
175 struct net_device *next_dev;
179 struct sk_buff *queue[SKB_QUEUE_SIZE];
184 } type; /* type of device */
187 static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/
188 static struct net_device *el3_root_dev;
190 static ushort id_read_eeprom(int index);
191 static ushort read_eeprom(int ioaddr, int index);
192 static int el3_open(struct net_device *dev);
193 static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
194 static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
195 static void update_stats(struct net_device *dev);
196 static struct net_device_stats *el3_get_stats(struct net_device *dev);
197 static int el3_rx(struct net_device *dev);
198 static int el3_close(struct net_device *dev);
199 static void set_multicast_list(struct net_device *dev);
200 static void el3_tx_timeout (struct net_device *dev);
201 static void el3_down(struct net_device *dev);
202 static void el3_up(struct net_device *dev);
203 static const struct ethtool_ops ethtool_ops;
205 static int el3_suspend(struct device *, pm_message_t);
206 static int el3_resume(struct device *);
208 #define el3_suspend NULL
209 #define el3_resume NULL
213 /* generic device remove for all device types */
214 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
215 static int el3_device_remove (struct device *device);
217 #ifdef CONFIG_NET_POLL_CONTROLLER
218 static void el3_poll_controller(struct net_device *dev);
222 static struct eisa_device_id el3_eisa_ids[] = {
229 static int el3_eisa_probe (struct device *device);
231 static struct eisa_driver el3_eisa_driver = {
232 .id_table = el3_eisa_ids,
235 .probe = el3_eisa_probe,
236 .remove = __devexit_p (el3_device_remove),
237 .suspend = el3_suspend,
238 .resume = el3_resume,
244 static int el3_mca_probe(struct device *dev);
246 static short el3_mca_adapter_ids[] __initdata = {
255 static char *el3_mca_adapter_names[] __initdata = {
256 "3Com 3c529 EtherLink III (10base2)",
257 "3Com 3c529 EtherLink III (10baseT)",
258 "3Com 3c529 EtherLink III (test mode)",
259 "3Com 3c529 EtherLink III (TP or coax)",
260 "3Com 3c529 EtherLink III (TP)",
264 static struct mca_driver el3_mca_driver = {
265 .id_table = el3_mca_adapter_ids,
268 .bus = &mca_bus_type,
269 .probe = el3_mca_probe,
270 .remove = __devexit_p(el3_device_remove),
271 .suspend = el3_suspend,
272 .resume = el3_resume,
275 #endif /* CONFIG_MCA */
277 #if defined(__ISAPNP__)
278 static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
279 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
280 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
281 (long) "3Com Etherlink III (TP)" },
282 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
283 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
284 (long) "3Com Etherlink III" },
285 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
286 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
287 (long) "3Com Etherlink III (combo)" },
288 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
289 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
290 (long) "3Com Etherlink III (TPO)" },
291 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
292 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
293 (long) "3Com Etherlink III (TPC)" },
294 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
295 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
296 (long) "3Com Etherlink III compatible" },
297 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
298 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
299 (long) "3Com Etherlink III compatible" },
300 { } /* terminate list */
303 static u16 el3_isapnp_phys_addr[8][3];
305 #endif /* __ISAPNP__ */
307 /* With the driver model introduction for EISA devices, both init
308 * and cleanup have been split :
309 * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove
310 * - MCA/ISA still use el3_probe
312 * Both call el3_common_init/el3_common_remove. */
314 static int __init el3_common_init(struct net_device *dev)
316 struct el3_private *lp = netdev_priv(dev);
320 spin_lock_init(&lp->lock);
322 if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */
323 dev->if_port = (dev->mem_start & 0x0f);
324 } else { /* xcvr codes 0/8 */
325 /* use eeprom value, but save user's full-duplex selection */
326 dev->if_port |= (dev->mem_start & 0x08);
329 /* The EL3-specific entries in the device structure. */
330 dev->open = &el3_open;
331 dev->hard_start_xmit = &el3_start_xmit;
332 dev->stop = &el3_close;
333 dev->get_stats = &el3_get_stats;
334 dev->set_multicast_list = &set_multicast_list;
335 dev->tx_timeout = el3_tx_timeout;
336 dev->watchdog_timeo = TX_TIMEOUT;
337 #ifdef CONFIG_NET_POLL_CONTROLLER
338 dev->poll_controller = el3_poll_controller;
340 SET_ETHTOOL_OPS(dev, ðtool_ops);
342 err = register_netdev(dev);
344 printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n",
345 dev->base_addr, dev->irq);
346 release_region(dev->base_addr, EL3_IO_EXTENT);
351 const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
352 printk("%s: 3c5x9 found at %#3.3lx, %s port, address ",
353 dev->name, dev->base_addr,
354 if_names[(dev->if_port & 0x03)]);
357 /* Read in the station address. */
358 for (i = 0; i < 6; i++)
359 printk(" %2.2x", dev->dev_addr[i]);
360 printk(", IRQ %d.\n", dev->irq);
363 printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
368 static void el3_common_remove (struct net_device *dev)
370 struct el3_private *lp = netdev_priv(dev);
372 (void) lp; /* Keep gcc quiet... */
373 #if defined(__ISAPNP__)
374 if (lp->type == EL3_PNP)
375 pnp_device_detach(to_pnp_dev(lp->dev));
378 unregister_netdev (dev);
379 release_region(dev->base_addr, EL3_IO_EXTENT);
383 static int __init el3_probe(int card_idx)
385 struct net_device *dev;
386 struct el3_private *lp;
387 short lrs_state = 0xff, i;
388 int ioaddr, irq, if_port;
390 static int current_tag;
392 #if defined(__ISAPNP__)
393 static int pnp_cards;
394 struct pnp_dev *idev = NULL;
399 for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
401 while ((idev = pnp_find_dev(NULL,
402 el3_isapnp_adapters[i].vendor,
403 el3_isapnp_adapters[i].function,
405 if (pnp_device_attach(idev) < 0)
407 if (pnp_activate_dev(idev) < 0) {
409 pnp_device_detach(idev);
412 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
414 ioaddr = pnp_port_start(idev, 0);
415 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) {
416 pnp_device_detach(idev);
419 irq = pnp_irq(idev, 0);
421 printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
422 (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
424 for (j = 0; j < 3; j++)
425 el3_isapnp_phys_addr[pnp_cards][j] =
427 htons(read_eeprom(ioaddr, j));
428 if_port = read_eeprom(ioaddr, 8) >> 14;
429 dev = alloc_etherdev(sizeof (struct el3_private));
431 release_region(ioaddr, EL3_IO_EXTENT);
432 pnp_device_detach(idev);
436 SET_MODULE_OWNER(dev);
437 SET_NETDEV_DEV(dev, &idev->dev);
440 netdev_boot_setup_check(dev);
445 #endif /* __ISAPNP__ */
447 /* Select an open I/O location at 0x1*0 to do contention select. */
448 for ( ; id_port < 0x200; id_port += 0x10) {
449 if (!request_region(id_port, 1, "3c509"))
453 if (inb(id_port) & 0x01){
454 release_region(id_port, 1);
457 release_region(id_port, 1);
459 if (id_port >= 0x200) {
460 /* Rare -- do we really need a warning? */
461 printk(" WARNING: No I/O port available for 3c509 activation.\n");
465 /* Next check for all ISA bus boards by sending the ID sequence to the
466 ID_PORT. We find cards past the first by setting the 'current_tag'
467 on cards as they are found. Cards with their tag set will not
468 respond to subsequent ID sequences. */
472 for(i = 0; i < 255; i++) {
473 outb(lrs_state, id_port);
475 lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
478 /* For the first probe, clear all board's tag registers. */
479 if (current_tag == 0)
481 else /* Otherwise kill off already-found boards. */
484 if (id_read_eeprom(7) != 0x6d50) {
488 /* Read in EEPROM data, which does contention-select.
489 Only the lowest address board will stay "on-line".
490 3Com got the byte order backwards. */
491 for (i = 0; i < 3; i++) {
492 phys_addr[i] = htons(id_read_eeprom(i));
495 #if defined(__ISAPNP__)
497 /* The ISA PnP 3c509 cards respond to the ID sequence.
498 This check is needed in order not to register them twice. */
499 for (i = 0; i < pnp_cards; i++) {
500 if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
501 phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
502 phys_addr[2] == el3_isapnp_phys_addr[i][2])
505 printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
506 phys_addr[0] & 0xff, phys_addr[0] >> 8,
507 phys_addr[1] & 0xff, phys_addr[1] >> 8,
508 phys_addr[2] & 0xff, phys_addr[2] >> 8);
509 /* Set the adaptor tag so that the next card can be found. */
510 outb(0xd0 + ++current_tag, id_port);
515 #endif /* __ISAPNP__ */
518 unsigned int iobase = id_read_eeprom(8);
519 if_port = iobase >> 14;
520 ioaddr = 0x200 + ((iobase & 0x1f) << 4);
522 irq = id_read_eeprom(9) >> 12;
524 dev = alloc_etherdev(sizeof (struct el3_private));
528 SET_MODULE_OWNER(dev);
530 netdev_boot_setup_check(dev);
532 /* Set passed-in IRQ or I/O Addr. */
533 if (dev->irq > 1 && dev->irq < 16)
536 if (dev->base_addr) {
537 if (dev->mem_end == 0x3c509 /* Magic key */
538 && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0)
539 ioaddr = dev->base_addr & 0x3f0;
540 else if (dev->base_addr != ioaddr)
544 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
549 /* Set the adaptor tag so that the next card can be found. */
550 outb(0xd0 + ++current_tag, id_port);
552 /* Activate the adaptor at the EEPROM location. */
553 outb((ioaddr >> 4) | 0xe0, id_port);
556 if (inw(ioaddr) != 0x6d50)
559 /* Free the interrupt so that some other card can use it. */
560 outw(0x0f00, ioaddr + WN0_IRQ);
562 #if defined(__ISAPNP__)
563 found: /* PNP jumps here... */
564 #endif /* __ISAPNP__ */
566 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
567 dev->base_addr = ioaddr;
569 dev->if_port = if_port;
570 lp = netdev_priv(dev);
571 #if defined(__ISAPNP__)
572 lp->dev = &idev->dev;
574 err = el3_common_init(dev);
580 lp->next_dev = el3_root_dev;
585 #if defined(__ISAPNP__)
587 pnp_device_detach(idev);
595 static int __init el3_mca_probe(struct device *device)
597 /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
598 * heavily modified by Chris Beauregard
599 * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA
602 * redone for multi-card detection by ZP Gu (zpg@castle.net)
603 * now works as a module */
605 struct el3_private *lp;
607 int ioaddr, irq, if_port;
609 struct net_device *dev = NULL;
611 struct mca_device *mdev = to_mca_device(device);
612 int slot = mdev->slot;
615 pos4 = mca_device_read_stored_pos(mdev, 4);
616 pos5 = mca_device_read_stored_pos(mdev, 5);
618 ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
622 printk("3c529: found %s at slot %d\n",
623 el3_mca_adapter_names[mdev->index], slot + 1);
626 strncpy(mdev->name, el3_mca_adapter_names[mdev->index],
628 mca_device_set_claim(mdev, 1);
630 if_port = pos4 & 0x03;
632 irq = mca_device_transform_irq(mdev, irq);
633 ioaddr = mca_device_transform_ioport(mdev, ioaddr);
635 printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
638 for (i = 0; i < 3; i++) {
639 phys_addr[i] = htons(read_eeprom(ioaddr, i));
642 dev = alloc_etherdev(sizeof (struct el3_private));
644 release_region(ioaddr, EL3_IO_EXTENT);
648 SET_MODULE_OWNER(dev);
649 netdev_boot_setup_check(dev);
651 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
652 dev->base_addr = ioaddr;
654 dev->if_port = if_port;
655 lp = netdev_priv(dev);
658 device->driver_data = dev;
659 err = el3_common_init(dev);
662 device->driver_data = NULL;
671 #endif /* CONFIG_MCA */
674 static int __init el3_eisa_probe (struct device *device)
676 struct el3_private *lp;
678 int ioaddr, irq, if_port;
680 struct net_device *dev = NULL;
681 struct eisa_device *edev;
684 /* Yeepee, The driver framework is calling us ! */
685 edev = to_eisa_device (device);
686 ioaddr = edev->base_addr;
688 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509"))
691 /* Change the register set to the configuration window 0. */
692 outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
694 irq = inw(ioaddr + WN0_IRQ) >> 12;
695 if_port = inw(ioaddr + 6)>>14;
696 for (i = 0; i < 3; i++)
697 phys_addr[i] = htons(read_eeprom(ioaddr, i));
699 /* Restore the "Product ID" to the EEPROM read register. */
700 read_eeprom(ioaddr, 3);
702 dev = alloc_etherdev(sizeof (struct el3_private));
704 release_region(ioaddr, EL3_IO_EXTENT);
708 SET_MODULE_OWNER(dev);
710 netdev_boot_setup_check(dev);
712 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
713 dev->base_addr = ioaddr;
715 dev->if_port = if_port;
716 lp = netdev_priv(dev);
719 eisa_set_drvdata (edev, dev);
720 err = el3_common_init(dev);
723 eisa_set_drvdata (edev, NULL);
733 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
734 /* This remove works for all device types.
736 * The net dev must be stored in the driver_data field */
737 static int __devexit el3_device_remove (struct device *device)
739 struct net_device *dev;
741 dev = device->driver_data;
743 el3_common_remove (dev);
748 /* Read a word from the EEPROM using the regular EEPROM access register.
749 Assume that we are in register window zero.
751 static ushort read_eeprom(int ioaddr, int index)
753 outw(EEPROM_READ + index, ioaddr + 10);
754 /* Pause for at least 162 us. for the read to take place.
755 Some chips seem to require much longer */
757 return inw(ioaddr + 12);
760 /* Read a word from the EEPROM when in the ISA ID probe state. */
761 static ushort __init id_read_eeprom(int index)
765 /* Issue read command, and pause for at least 162 us. for it to complete.
766 Assume extra-fast 16Mhz bus. */
767 outb(EEPROM_READ + index, id_port);
769 /* Pause for at least 162 us. for the read to take place. */
770 /* Some chips seem to require much longer */
773 for (bit = 15; bit >= 0; bit--)
774 word = (word << 1) + (inb(id_port) & 0x01);
777 printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
784 el3_open(struct net_device *dev)
786 int ioaddr = dev->base_addr;
789 outw(TxReset, ioaddr + EL3_CMD);
790 outw(RxReset, ioaddr + EL3_CMD);
791 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
793 i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev);
799 printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
800 dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
805 printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
806 dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
812 el3_tx_timeout (struct net_device *dev)
814 struct el3_private *lp = netdev_priv(dev);
815 int ioaddr = dev->base_addr;
817 /* Transmitter timeout, serious problems. */
818 printk("%s: transmit timed out, Tx_status %2.2x status %4.4x "
819 "Tx FIFO room %d.\n",
820 dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
821 inw(ioaddr + TX_FREE));
822 lp->stats.tx_errors++;
823 dev->trans_start = jiffies;
824 /* Issue TX_RESET and TX_START commands. */
825 outw(TxReset, ioaddr + EL3_CMD);
826 outw(TxEnable, ioaddr + EL3_CMD);
827 netif_wake_queue(dev);
832 el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
834 struct el3_private *lp = netdev_priv(dev);
835 int ioaddr = dev->base_addr;
838 netif_stop_queue (dev);
840 lp->stats.tx_bytes += skb->len;
843 printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
844 dev->name, skb->len, inw(ioaddr + EL3_STATUS));
847 #ifndef final_version
848 { /* Error-checking code, delete someday. */
849 ushort status = inw(ioaddr + EL3_STATUS);
850 if (status & 0x0001 /* IRQ line active, missed one. */
851 && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */
852 printk("%s: Missed interrupt, status then %04x now %04x"
853 " Tx %2.2x Rx %4.4x.\n", dev->name, status,
854 inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
855 inw(ioaddr + RX_STATUS));
856 /* Fake interrupt trigger by masking, acknowledge interrupts. */
857 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
858 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
860 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
866 * We lock the driver against other processors. Note
867 * we don't need to lock versus the IRQ as we suspended
868 * that. This means that we lose the ability to take
869 * an RX during a TX upload. That sucks a bit with SMP
870 * on an original 3c509 (2K buffer)
872 * Using disable_irq stops us crapping on other
873 * time sensitive devices.
876 spin_lock_irqsave(&lp->lock, flags);
878 /* Put out the doubleword header... */
879 outw(skb->len, ioaddr + TX_FIFO);
880 outw(0x00, ioaddr + TX_FIFO);
881 /* ... and the packet rounded to a doubleword. */
882 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
884 dev->trans_start = jiffies;
885 if (inw(ioaddr + TX_FREE) > 1536)
886 netif_start_queue(dev);
888 /* Interrupt us when the FIFO has room for max-sized packet. */
889 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
891 spin_unlock_irqrestore(&lp->lock, flags);
895 /* Clear the Tx status stack. */
900 while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
901 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
902 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
903 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
904 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
910 /* The EL3 interrupt handler. */
912 el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
914 struct net_device *dev = (struct net_device *)dev_id;
915 struct el3_private *lp;
917 int i = max_interrupt_work;
920 printk ("el3_interrupt(): irq %d for unknown device.\n", irq);
924 lp = netdev_priv(dev);
925 spin_lock(&lp->lock);
927 ioaddr = dev->base_addr;
930 status = inw(ioaddr + EL3_STATUS);
931 printk("%s: interrupt, status %4.4x.\n", dev->name, status);
934 while ((status = inw(ioaddr + EL3_STATUS)) &
935 (IntLatch | RxComplete | StatsFull)) {
937 if (status & RxComplete)
940 if (status & TxAvailable) {
942 printk(" TX room bit was handled.\n");
943 /* There's room in the FIFO for a full-sized packet. */
944 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
945 netif_wake_queue (dev);
947 if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
948 /* Handle all uncommon interrupts. */
949 if (status & StatsFull) /* Empty statistics. */
951 if (status & RxEarly) { /* Rx early is unused. */
953 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
955 if (status & TxComplete) { /* Really Tx error. */
956 struct el3_private *lp = netdev_priv(dev);
960 while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
961 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
962 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
963 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
964 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
967 if (status & AdapterFailure) {
968 /* Adapter failure requires Rx reset and reinit. */
969 outw(RxReset, ioaddr + EL3_CMD);
970 /* Set the Rx filter to the current state. */
971 outw(SetRxFilter | RxStation | RxBroadcast
972 | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
973 | (dev->flags & IFF_PROMISC ? RxProm : 0),
975 outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
976 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
981 printk("%s: Infinite loop in interrupt, status %4.4x.\n",
983 /* Clear all interrupts. */
984 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
987 /* Acknowledge the IRQ. */
988 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
992 printk("%s: exiting interrupt, status %4.4x.\n", dev->name,
993 inw(ioaddr + EL3_STATUS));
995 spin_unlock(&lp->lock);
1000 #ifdef CONFIG_NET_POLL_CONTROLLER
1002 * Polling receive - used by netconsole and other diagnostic tools
1003 * to allow network i/o with interrupts disabled.
1005 static void el3_poll_controller(struct net_device *dev)
1007 disable_irq(dev->irq);
1008 el3_interrupt(dev->irq, dev, NULL);
1009 enable_irq(dev->irq);
1013 static struct net_device_stats *
1014 el3_get_stats(struct net_device *dev)
1016 struct el3_private *lp = netdev_priv(dev);
1017 unsigned long flags;
1020 * This is fast enough not to bother with disable IRQ
1024 spin_lock_irqsave(&lp->lock, flags);
1026 spin_unlock_irqrestore(&lp->lock, flags);
1030 /* Update statistics. We change to register window 6, so this should be run
1031 single-threaded if the device is active. This is expected to be a rare
1032 operation, and it's simpler for the rest of the driver to assume that
1033 window 1 is always valid rather than use a special window-state variable.
1035 static void update_stats(struct net_device *dev)
1037 struct el3_private *lp = netdev_priv(dev);
1038 int ioaddr = dev->base_addr;
1041 printk(" Updating the statistics.\n");
1042 /* Turn off statistics updates while reading. */
1043 outw(StatsDisable, ioaddr + EL3_CMD);
1044 /* Switch to the stats window, and read everything. */
1046 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1047 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1048 /* Multiple collisions. */ inb(ioaddr + 2);
1049 lp->stats.collisions += inb(ioaddr + 3);
1050 lp->stats.tx_window_errors += inb(ioaddr + 4);
1051 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1052 lp->stats.tx_packets += inb(ioaddr + 6);
1053 /* Rx packets */ inb(ioaddr + 7);
1054 /* Tx deferrals */ inb(ioaddr + 8);
1055 inw(ioaddr + 10); /* Total Rx and Tx octets. */
1058 /* Back to window 1, and turn statistics back on. */
1060 outw(StatsEnable, ioaddr + EL3_CMD);
1065 el3_rx(struct net_device *dev)
1067 struct el3_private *lp = netdev_priv(dev);
1068 int ioaddr = dev->base_addr;
1072 printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
1073 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
1074 while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
1075 if (rx_status & 0x4000) { /* Error, update stats. */
1076 short error = rx_status & 0x3800;
1078 outw(RxDiscard, ioaddr + EL3_CMD);
1079 lp->stats.rx_errors++;
1081 case 0x0000: lp->stats.rx_over_errors++; break;
1082 case 0x0800: lp->stats.rx_length_errors++; break;
1083 case 0x1000: lp->stats.rx_frame_errors++; break;
1084 case 0x1800: lp->stats.rx_length_errors++; break;
1085 case 0x2000: lp->stats.rx_frame_errors++; break;
1086 case 0x2800: lp->stats.rx_crc_errors++; break;
1089 short pkt_len = rx_status & 0x7ff;
1090 struct sk_buff *skb;
1092 skb = dev_alloc_skb(pkt_len+5);
1093 lp->stats.rx_bytes += pkt_len;
1095 printk("Receiving packet size %d status %4.4x.\n",
1096 pkt_len, rx_status);
1099 skb_reserve(skb, 2); /* Align IP on 16 byte */
1101 /* 'skb->data' points to the start of sk_buff data area. */
1102 insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
1103 (pkt_len + 3) >> 2);
1105 outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
1106 skb->protocol = eth_type_trans(skb,dev);
1108 dev->last_rx = jiffies;
1109 lp->stats.rx_packets++;
1112 outw(RxDiscard, ioaddr + EL3_CMD);
1113 lp->stats.rx_dropped++;
1115 printk("%s: Couldn't allocate a sk_buff of size %d.\n",
1116 dev->name, pkt_len);
1118 inw(ioaddr + EL3_STATUS); /* Delay. */
1119 while (inw(ioaddr + EL3_STATUS) & 0x1000)
1120 printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n",
1121 inw(ioaddr + EL3_STATUS) );
1128 * Set or clear the multicast filter for this adaptor.
1131 set_multicast_list(struct net_device *dev)
1133 unsigned long flags;
1134 struct el3_private *lp = netdev_priv(dev);
1135 int ioaddr = dev->base_addr;
1137 if (el3_debug > 1) {
1139 if (old != dev->mc_count) {
1140 old = dev->mc_count;
1141 printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count);
1144 spin_lock_irqsave(&lp->lock, flags);
1145 if (dev->flags&IFF_PROMISC) {
1146 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1149 else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) {
1150 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
1153 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1154 spin_unlock_irqrestore(&lp->lock, flags);
1158 el3_close(struct net_device *dev)
1160 int ioaddr = dev->base_addr;
1161 struct el3_private *lp = netdev_priv(dev);
1164 printk("%s: Shutting down ethercard.\n", dev->name);
1168 free_irq(dev->irq, dev);
1169 /* Switching back to window 0 disables the IRQ. */
1171 if (lp->type != EL3_EISA) {
1172 /* But we explicitly zero the IRQ line select anyway. Don't do
1173 * it on EISA cards, it prevents the module from getting an
1174 * IRQ after unload+reload... */
1175 outw(0x0f00, ioaddr + WN0_IRQ);
1182 el3_link_ok(struct net_device *dev)
1184 int ioaddr = dev->base_addr;
1188 tmp = inw(ioaddr + WN4_MEDIA);
1190 return tmp & (1<<11);
1194 el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1197 int ioaddr = dev->base_addr;
1200 /* obtain current transceiver via WN4_MEDIA? */
1201 tmp = inw(ioaddr + WN0_ADDR_CONF);
1202 ecmd->transceiver = XCVR_INTERNAL;
1203 switch (tmp >> 14) {
1205 ecmd->port = PORT_TP;
1208 ecmd->port = PORT_AUI;
1209 ecmd->transceiver = XCVR_EXTERNAL;
1212 ecmd->port = PORT_BNC;
1217 ecmd->duplex = DUPLEX_HALF;
1218 ecmd->supported = 0;
1219 tmp = inw(ioaddr + WN0_CONF_CTRL);
1221 ecmd->supported |= SUPPORTED_AUI;
1223 ecmd->supported |= SUPPORTED_BNC;
1225 ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half |
1226 SUPPORTED_10baseT_Full; /* hmm... */
1228 tmp = inw(ioaddr + WN4_NETDIAG);
1229 if (tmp & FD_ENABLE)
1230 ecmd->duplex = DUPLEX_FULL;
1233 ecmd->speed = SPEED_10;
1239 el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1242 int ioaddr = dev->base_addr;
1244 if (ecmd->speed != SPEED_10)
1246 if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL))
1248 if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL))
1251 /* change XCVR type */
1253 tmp = inw(ioaddr + WN0_ADDR_CONF);
1254 switch (ecmd->port) {
1271 outw(tmp, ioaddr + WN0_ADDR_CONF);
1272 if (dev->if_port == 3) {
1273 /* fire up the DC-DC convertor if BNC gets enabled */
1274 tmp = inw(ioaddr + WN0_ADDR_CONF);
1275 if (tmp & (3 << 14)) {
1276 outw(StartCoax, ioaddr + EL3_CMD);
1283 tmp = inw(ioaddr + WN4_NETDIAG);
1284 if (ecmd->duplex == DUPLEX_FULL)
1288 outw(tmp, ioaddr + WN4_NETDIAG);
1294 static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1296 strcpy(info->driver, DRV_NAME);
1297 strcpy(info->version, DRV_VERSION);
1300 static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1302 struct el3_private *lp = netdev_priv(dev);
1305 spin_lock_irq(&lp->lock);
1306 ret = el3_netdev_get_ecmd(dev, ecmd);
1307 spin_unlock_irq(&lp->lock);
1311 static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1313 struct el3_private *lp = netdev_priv(dev);
1316 spin_lock_irq(&lp->lock);
1317 ret = el3_netdev_set_ecmd(dev, ecmd);
1318 spin_unlock_irq(&lp->lock);
1322 static u32 el3_get_link(struct net_device *dev)
1324 struct el3_private *lp = netdev_priv(dev);
1327 spin_lock_irq(&lp->lock);
1328 ret = el3_link_ok(dev);
1329 spin_unlock_irq(&lp->lock);
1333 static u32 el3_get_msglevel(struct net_device *dev)
1338 static void el3_set_msglevel(struct net_device *dev, u32 v)
1343 static const struct ethtool_ops ethtool_ops = {
1344 .get_drvinfo = el3_get_drvinfo,
1345 .get_settings = el3_get_settings,
1346 .set_settings = el3_set_settings,
1347 .get_link = el3_get_link,
1348 .get_msglevel = el3_get_msglevel,
1349 .set_msglevel = el3_set_msglevel,
1353 el3_down(struct net_device *dev)
1355 int ioaddr = dev->base_addr;
1357 netif_stop_queue(dev);
1359 /* Turn off statistics ASAP. We update lp->stats below. */
1360 outw(StatsDisable, ioaddr + EL3_CMD);
1362 /* Disable the receiver and transmitter. */
1363 outw(RxDisable, ioaddr + EL3_CMD);
1364 outw(TxDisable, ioaddr + EL3_CMD);
1366 if (dev->if_port == 3)
1367 /* Turn off thinnet power. Green! */
1368 outw(StopCoax, ioaddr + EL3_CMD);
1369 else if (dev->if_port == 0) {
1370 /* Disable link beat and jabber, if_port may change here next open(). */
1372 outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
1375 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1381 el3_up(struct net_device *dev)
1383 int i, sw_info, net_diag;
1384 int ioaddr = dev->base_addr;
1386 /* Activating the board required and does no harm otherwise */
1387 outw(0x0001, ioaddr + 4);
1389 /* Set the IRQ line. */
1390 outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
1392 /* Set the station address in window 2 each time opened. */
1395 for (i = 0; i < 6; i++)
1396 outb(dev->dev_addr[i], ioaddr + i);
1398 if ((dev->if_port & 0x03) == 3) /* BNC interface */
1399 /* Start the thinnet transceiver. We should really wait 50ms...*/
1400 outw(StartCoax, ioaddr + EL3_CMD);
1401 else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */
1402 /* Combine secondary sw_info word (the adapter level) and primary
1403 sw_info word (duplex setting plus other useless bits) */
1405 sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) |
1406 (read_eeprom(ioaddr, 0x0d) & 0xBff0);
1409 net_diag = inw(ioaddr + WN4_NETDIAG);
1410 net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */
1411 printk("%s: ", dev->name);
1412 switch (dev->if_port & 0x0c) {
1414 /* force full-duplex mode if 3c5x9b */
1415 if (sw_info & 0x000f) {
1416 printk("Forcing 3c5x9b full-duplex mode");
1420 /* set full-duplex mode based on eeprom config setting */
1421 if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
1422 printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
1426 /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
1427 printk("Setting 3c5x9/3c5x9B half-duplex mode");
1428 net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */
1431 outw(net_diag, ioaddr + WN4_NETDIAG);
1432 printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info);
1434 printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag);
1435 /* Enable link beat and jabber check. */
1436 outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
1439 /* Switch to the stats window, and clear all stats by reading. */
1440 outw(StatsDisable, ioaddr + EL3_CMD);
1442 for (i = 0; i < 9; i++)
1447 /* Switch to register set 1 for normal use. */
1450 /* Accept b-case and phys addr only. */
1451 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1452 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
1454 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1455 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
1456 /* Allow status bits to be seen. */
1457 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
1458 /* Ack all pending events, and set active indicator mask. */
1459 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
1461 outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
1464 netif_start_queue(dev);
1467 /* Power Management support functions */
1471 el3_suspend(struct device *pdev, pm_message_t state)
1473 unsigned long flags;
1474 struct net_device *dev;
1475 struct el3_private *lp;
1478 dev = pdev->driver_data;
1479 lp = netdev_priv(dev);
1480 ioaddr = dev->base_addr;
1482 spin_lock_irqsave(&lp->lock, flags);
1484 if (netif_running(dev))
1485 netif_device_detach(dev);
1488 outw(PowerDown, ioaddr + EL3_CMD);
1490 spin_unlock_irqrestore(&lp->lock, flags);
1495 el3_resume(struct device *pdev)
1497 unsigned long flags;
1498 struct net_device *dev;
1499 struct el3_private *lp;
1502 dev = pdev->driver_data;
1503 lp = netdev_priv(dev);
1504 ioaddr = dev->base_addr;
1506 spin_lock_irqsave(&lp->lock, flags);
1508 outw(PowerUp, ioaddr + EL3_CMD);
1511 if (netif_running(dev))
1512 netif_device_attach(dev);
1514 spin_unlock_irqrestore(&lp->lock, flags);
1518 #endif /* EL3_SUSPEND */
1520 /* Parameters that may be passed into the module. */
1521 static int debug = -1;
1522 static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
1523 static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
1525 module_param(debug,int, 0);
1526 module_param_array(irq, int, NULL, 0);
1527 module_param_array(xcvr, int, NULL, 0);
1528 module_param(max_interrupt_work, int, 0);
1529 MODULE_PARM_DESC(debug, "debug level (0-6)");
1530 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
1531 MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)");
1532 MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
1533 #if defined(__ISAPNP__)
1534 module_param(nopnp, int, 0);
1535 MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
1536 MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
1537 #endif /* __ISAPNP__ */
1538 MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver");
1539 MODULE_LICENSE("GPL");
1541 static int __init el3_init_module(void)
1549 el3_root_dev = NULL;
1550 while (el3_probe(el3_cards) == 0) {
1551 if (irq[el3_cards] > 1)
1552 el3_root_dev->irq = irq[el3_cards];
1553 if (xcvr[el3_cards] >= 0)
1554 el3_root_dev->if_port = xcvr[el3_cards];
1559 ret = eisa_driver_register(&el3_eisa_driver);
1563 int err = mca_register_driver(&el3_mca_driver);
1571 static void __exit el3_cleanup_module(void)
1573 struct net_device *next_dev;
1575 while (el3_root_dev) {
1576 struct el3_private *lp = netdev_priv(el3_root_dev);
1578 next_dev = lp->next_dev;
1579 el3_common_remove (el3_root_dev);
1580 el3_root_dev = next_dev;
1584 eisa_driver_unregister (&el3_eisa_driver);
1587 mca_unregister_driver(&el3_mca_driver);
1591 module_init (el3_init_module);
1592 module_exit (el3_cleanup_module);