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[] = {
228 MODULE_DEVICE_TABLE(eisa, el3_eisa_ids);
230 static int el3_eisa_probe (struct device *device);
232 static struct eisa_driver el3_eisa_driver = {
233 .id_table = el3_eisa_ids,
236 .probe = el3_eisa_probe,
237 .remove = __devexit_p (el3_device_remove),
238 .suspend = el3_suspend,
239 .resume = el3_resume,
245 static int el3_mca_probe(struct device *dev);
247 static short el3_mca_adapter_ids[] __initdata = {
256 static char *el3_mca_adapter_names[] __initdata = {
257 "3Com 3c529 EtherLink III (10base2)",
258 "3Com 3c529 EtherLink III (10baseT)",
259 "3Com 3c529 EtherLink III (test mode)",
260 "3Com 3c529 EtherLink III (TP or coax)",
261 "3Com 3c529 EtherLink III (TP)",
265 static struct mca_driver el3_mca_driver = {
266 .id_table = el3_mca_adapter_ids,
269 .bus = &mca_bus_type,
270 .probe = el3_mca_probe,
271 .remove = __devexit_p(el3_device_remove),
272 .suspend = el3_suspend,
273 .resume = el3_resume,
276 #endif /* CONFIG_MCA */
278 #if defined(__ISAPNP__)
279 static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
280 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
281 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
282 (long) "3Com Etherlink III (TP)" },
283 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
284 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
285 (long) "3Com Etherlink III" },
286 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
287 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
288 (long) "3Com Etherlink III (combo)" },
289 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
290 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
291 (long) "3Com Etherlink III (TPO)" },
292 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
293 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
294 (long) "3Com Etherlink III (TPC)" },
295 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
296 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
297 (long) "3Com Etherlink III compatible" },
298 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
299 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
300 (long) "3Com Etherlink III compatible" },
301 { } /* terminate list */
304 static u16 el3_isapnp_phys_addr[8][3];
306 #endif /* __ISAPNP__ */
308 /* With the driver model introduction for EISA devices, both init
309 * and cleanup have been split :
310 * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove
311 * - MCA/ISA still use el3_probe
313 * Both call el3_common_init/el3_common_remove. */
315 static int __init el3_common_init(struct net_device *dev)
317 struct el3_private *lp = netdev_priv(dev);
321 spin_lock_init(&lp->lock);
323 if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */
324 dev->if_port = (dev->mem_start & 0x0f);
325 } else { /* xcvr codes 0/8 */
326 /* use eeprom value, but save user's full-duplex selection */
327 dev->if_port |= (dev->mem_start & 0x08);
330 /* The EL3-specific entries in the device structure. */
331 dev->open = &el3_open;
332 dev->hard_start_xmit = &el3_start_xmit;
333 dev->stop = &el3_close;
334 dev->get_stats = &el3_get_stats;
335 dev->set_multicast_list = &set_multicast_list;
336 dev->tx_timeout = el3_tx_timeout;
337 dev->watchdog_timeo = TX_TIMEOUT;
338 #ifdef CONFIG_NET_POLL_CONTROLLER
339 dev->poll_controller = el3_poll_controller;
341 SET_ETHTOOL_OPS(dev, ðtool_ops);
343 err = register_netdev(dev);
345 printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n",
346 dev->base_addr, dev->irq);
347 release_region(dev->base_addr, EL3_IO_EXTENT);
352 const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
353 printk("%s: 3c5x9 found at %#3.3lx, %s port, address ",
354 dev->name, dev->base_addr,
355 if_names[(dev->if_port & 0x03)]);
358 /* Read in the station address. */
359 for (i = 0; i < 6; i++)
360 printk(" %2.2x", dev->dev_addr[i]);
361 printk(", IRQ %d.\n", dev->irq);
364 printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
369 static void el3_common_remove (struct net_device *dev)
371 struct el3_private *lp = netdev_priv(dev);
373 (void) lp; /* Keep gcc quiet... */
374 #if defined(__ISAPNP__)
375 if (lp->type == EL3_PNP)
376 pnp_device_detach(to_pnp_dev(lp->dev));
379 unregister_netdev (dev);
380 release_region(dev->base_addr, EL3_IO_EXTENT);
384 static int __init el3_probe(int card_idx)
386 struct net_device *dev;
387 struct el3_private *lp;
388 short lrs_state = 0xff, i;
389 int ioaddr, irq, if_port;
391 static int current_tag;
393 #if defined(__ISAPNP__)
394 static int pnp_cards;
395 struct pnp_dev *idev = NULL;
400 for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
402 while ((idev = pnp_find_dev(NULL,
403 el3_isapnp_adapters[i].vendor,
404 el3_isapnp_adapters[i].function,
406 if (pnp_device_attach(idev) < 0)
408 if (pnp_activate_dev(idev) < 0) {
410 pnp_device_detach(idev);
413 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
415 ioaddr = pnp_port_start(idev, 0);
416 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) {
417 pnp_device_detach(idev);
420 irq = pnp_irq(idev, 0);
422 printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
423 (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
425 for (j = 0; j < 3; j++)
426 el3_isapnp_phys_addr[pnp_cards][j] =
428 htons(read_eeprom(ioaddr, j));
429 if_port = read_eeprom(ioaddr, 8) >> 14;
430 dev = alloc_etherdev(sizeof (struct el3_private));
432 release_region(ioaddr, EL3_IO_EXTENT);
433 pnp_device_detach(idev);
437 SET_MODULE_OWNER(dev);
438 SET_NETDEV_DEV(dev, &idev->dev);
441 netdev_boot_setup_check(dev);
446 #endif /* __ISAPNP__ */
448 /* Select an open I/O location at 0x1*0 to do contention select. */
449 for ( ; id_port < 0x200; id_port += 0x10) {
450 if (!request_region(id_port, 1, "3c509"))
454 if (inb(id_port) & 0x01){
455 release_region(id_port, 1);
458 release_region(id_port, 1);
460 if (id_port >= 0x200) {
461 /* Rare -- do we really need a warning? */
462 printk(" WARNING: No I/O port available for 3c509 activation.\n");
466 /* Next check for all ISA bus boards by sending the ID sequence to the
467 ID_PORT. We find cards past the first by setting the 'current_tag'
468 on cards as they are found. Cards with their tag set will not
469 respond to subsequent ID sequences. */
473 for(i = 0; i < 255; i++) {
474 outb(lrs_state, id_port);
476 lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
479 /* For the first probe, clear all board's tag registers. */
480 if (current_tag == 0)
482 else /* Otherwise kill off already-found boards. */
485 if (id_read_eeprom(7) != 0x6d50) {
489 /* Read in EEPROM data, which does contention-select.
490 Only the lowest address board will stay "on-line".
491 3Com got the byte order backwards. */
492 for (i = 0; i < 3; i++) {
493 phys_addr[i] = htons(id_read_eeprom(i));
496 #if defined(__ISAPNP__)
498 /* The ISA PnP 3c509 cards respond to the ID sequence.
499 This check is needed in order not to register them twice. */
500 for (i = 0; i < pnp_cards; i++) {
501 if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
502 phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
503 phys_addr[2] == el3_isapnp_phys_addr[i][2])
506 printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
507 phys_addr[0] & 0xff, phys_addr[0] >> 8,
508 phys_addr[1] & 0xff, phys_addr[1] >> 8,
509 phys_addr[2] & 0xff, phys_addr[2] >> 8);
510 /* Set the adaptor tag so that the next card can be found. */
511 outb(0xd0 + ++current_tag, id_port);
516 #endif /* __ISAPNP__ */
519 unsigned int iobase = id_read_eeprom(8);
520 if_port = iobase >> 14;
521 ioaddr = 0x200 + ((iobase & 0x1f) << 4);
523 irq = id_read_eeprom(9) >> 12;
525 dev = alloc_etherdev(sizeof (struct el3_private));
529 SET_MODULE_OWNER(dev);
531 netdev_boot_setup_check(dev);
533 /* Set passed-in IRQ or I/O Addr. */
534 if (dev->irq > 1 && dev->irq < 16)
537 if (dev->base_addr) {
538 if (dev->mem_end == 0x3c509 /* Magic key */
539 && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0)
540 ioaddr = dev->base_addr & 0x3f0;
541 else if (dev->base_addr != ioaddr)
545 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
550 /* Set the adaptor tag so that the next card can be found. */
551 outb(0xd0 + ++current_tag, id_port);
553 /* Activate the adaptor at the EEPROM location. */
554 outb((ioaddr >> 4) | 0xe0, id_port);
557 if (inw(ioaddr) != 0x6d50)
560 /* Free the interrupt so that some other card can use it. */
561 outw(0x0f00, ioaddr + WN0_IRQ);
563 #if defined(__ISAPNP__)
564 found: /* PNP jumps here... */
565 #endif /* __ISAPNP__ */
567 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
568 dev->base_addr = ioaddr;
570 dev->if_port = if_port;
571 lp = netdev_priv(dev);
572 #if defined(__ISAPNP__)
573 lp->dev = &idev->dev;
575 err = el3_common_init(dev);
581 lp->next_dev = el3_root_dev;
586 #if defined(__ISAPNP__)
588 pnp_device_detach(idev);
596 static int __init el3_mca_probe(struct device *device)
598 /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
599 * heavily modified by Chris Beauregard
600 * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA
603 * redone for multi-card detection by ZP Gu (zpg@castle.net)
604 * now works as a module */
606 struct el3_private *lp;
608 int ioaddr, irq, if_port;
610 struct net_device *dev = NULL;
612 struct mca_device *mdev = to_mca_device(device);
613 int slot = mdev->slot;
616 pos4 = mca_device_read_stored_pos(mdev, 4);
617 pos5 = mca_device_read_stored_pos(mdev, 5);
619 ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
623 printk("3c529: found %s at slot %d\n",
624 el3_mca_adapter_names[mdev->index], slot + 1);
627 strncpy(mdev->name, el3_mca_adapter_names[mdev->index],
629 mca_device_set_claim(mdev, 1);
631 if_port = pos4 & 0x03;
633 irq = mca_device_transform_irq(mdev, irq);
634 ioaddr = mca_device_transform_ioport(mdev, ioaddr);
636 printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
639 for (i = 0; i < 3; i++) {
640 phys_addr[i] = htons(read_eeprom(ioaddr, i));
643 dev = alloc_etherdev(sizeof (struct el3_private));
645 release_region(ioaddr, EL3_IO_EXTENT);
649 SET_MODULE_OWNER(dev);
650 netdev_boot_setup_check(dev);
652 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
653 dev->base_addr = ioaddr;
655 dev->if_port = if_port;
656 lp = netdev_priv(dev);
659 device->driver_data = dev;
660 err = el3_common_init(dev);
663 device->driver_data = NULL;
672 #endif /* CONFIG_MCA */
675 static int __init el3_eisa_probe (struct device *device)
677 struct el3_private *lp;
679 int ioaddr, irq, if_port;
681 struct net_device *dev = NULL;
682 struct eisa_device *edev;
685 /* Yeepee, The driver framework is calling us ! */
686 edev = to_eisa_device (device);
687 ioaddr = edev->base_addr;
689 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509"))
692 /* Change the register set to the configuration window 0. */
693 outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
695 irq = inw(ioaddr + WN0_IRQ) >> 12;
696 if_port = inw(ioaddr + 6)>>14;
697 for (i = 0; i < 3; i++)
698 phys_addr[i] = htons(read_eeprom(ioaddr, i));
700 /* Restore the "Product ID" to the EEPROM read register. */
701 read_eeprom(ioaddr, 3);
703 dev = alloc_etherdev(sizeof (struct el3_private));
705 release_region(ioaddr, EL3_IO_EXTENT);
709 SET_MODULE_OWNER(dev);
711 netdev_boot_setup_check(dev);
713 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
714 dev->base_addr = ioaddr;
716 dev->if_port = if_port;
717 lp = netdev_priv(dev);
720 eisa_set_drvdata (edev, dev);
721 err = el3_common_init(dev);
724 eisa_set_drvdata (edev, NULL);
734 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
735 /* This remove works for all device types.
737 * The net dev must be stored in the driver_data field */
738 static int __devexit el3_device_remove (struct device *device)
740 struct net_device *dev;
742 dev = device->driver_data;
744 el3_common_remove (dev);
749 /* Read a word from the EEPROM using the regular EEPROM access register.
750 Assume that we are in register window zero.
752 static ushort read_eeprom(int ioaddr, int index)
754 outw(EEPROM_READ + index, ioaddr + 10);
755 /* Pause for at least 162 us. for the read to take place.
756 Some chips seem to require much longer */
758 return inw(ioaddr + 12);
761 /* Read a word from the EEPROM when in the ISA ID probe state. */
762 static ushort __init id_read_eeprom(int index)
766 /* Issue read command, and pause for at least 162 us. for it to complete.
767 Assume extra-fast 16Mhz bus. */
768 outb(EEPROM_READ + index, id_port);
770 /* Pause for at least 162 us. for the read to take place. */
771 /* Some chips seem to require much longer */
774 for (bit = 15; bit >= 0; bit--)
775 word = (word << 1) + (inb(id_port) & 0x01);
778 printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
785 el3_open(struct net_device *dev)
787 int ioaddr = dev->base_addr;
790 outw(TxReset, ioaddr + EL3_CMD);
791 outw(RxReset, ioaddr + EL3_CMD);
792 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
794 i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev);
800 printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
801 dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
806 printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
807 dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
813 el3_tx_timeout (struct net_device *dev)
815 struct el3_private *lp = netdev_priv(dev);
816 int ioaddr = dev->base_addr;
818 /* Transmitter timeout, serious problems. */
819 printk("%s: transmit timed out, Tx_status %2.2x status %4.4x "
820 "Tx FIFO room %d.\n",
821 dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
822 inw(ioaddr + TX_FREE));
823 lp->stats.tx_errors++;
824 dev->trans_start = jiffies;
825 /* Issue TX_RESET and TX_START commands. */
826 outw(TxReset, ioaddr + EL3_CMD);
827 outw(TxEnable, ioaddr + EL3_CMD);
828 netif_wake_queue(dev);
833 el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
835 struct el3_private *lp = netdev_priv(dev);
836 int ioaddr = dev->base_addr;
839 netif_stop_queue (dev);
841 lp->stats.tx_bytes += skb->len;
844 printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
845 dev->name, skb->len, inw(ioaddr + EL3_STATUS));
848 #ifndef final_version
849 { /* Error-checking code, delete someday. */
850 ushort status = inw(ioaddr + EL3_STATUS);
851 if (status & 0x0001 /* IRQ line active, missed one. */
852 && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */
853 printk("%s: Missed interrupt, status then %04x now %04x"
854 " Tx %2.2x Rx %4.4x.\n", dev->name, status,
855 inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
856 inw(ioaddr + RX_STATUS));
857 /* Fake interrupt trigger by masking, acknowledge interrupts. */
858 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
859 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
861 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
867 * We lock the driver against other processors. Note
868 * we don't need to lock versus the IRQ as we suspended
869 * that. This means that we lose the ability to take
870 * an RX during a TX upload. That sucks a bit with SMP
871 * on an original 3c509 (2K buffer)
873 * Using disable_irq stops us crapping on other
874 * time sensitive devices.
877 spin_lock_irqsave(&lp->lock, flags);
879 /* Put out the doubleword header... */
880 outw(skb->len, ioaddr + TX_FIFO);
881 outw(0x00, ioaddr + TX_FIFO);
882 /* ... and the packet rounded to a doubleword. */
883 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
885 dev->trans_start = jiffies;
886 if (inw(ioaddr + TX_FREE) > 1536)
887 netif_start_queue(dev);
889 /* Interrupt us when the FIFO has room for max-sized packet. */
890 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
892 spin_unlock_irqrestore(&lp->lock, flags);
896 /* Clear the Tx status stack. */
901 while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
902 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
903 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
904 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
905 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
911 /* The EL3 interrupt handler. */
913 el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
915 struct net_device *dev = (struct net_device *)dev_id;
916 struct el3_private *lp;
918 int i = max_interrupt_work;
921 printk ("el3_interrupt(): irq %d for unknown device.\n", irq);
925 lp = netdev_priv(dev);
926 spin_lock(&lp->lock);
928 ioaddr = dev->base_addr;
931 status = inw(ioaddr + EL3_STATUS);
932 printk("%s: interrupt, status %4.4x.\n", dev->name, status);
935 while ((status = inw(ioaddr + EL3_STATUS)) &
936 (IntLatch | RxComplete | StatsFull)) {
938 if (status & RxComplete)
941 if (status & TxAvailable) {
943 printk(" TX room bit was handled.\n");
944 /* There's room in the FIFO for a full-sized packet. */
945 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
946 netif_wake_queue (dev);
948 if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
949 /* Handle all uncommon interrupts. */
950 if (status & StatsFull) /* Empty statistics. */
952 if (status & RxEarly) { /* Rx early is unused. */
954 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
956 if (status & TxComplete) { /* Really Tx error. */
957 struct el3_private *lp = netdev_priv(dev);
961 while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
962 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
963 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
964 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
965 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
968 if (status & AdapterFailure) {
969 /* Adapter failure requires Rx reset and reinit. */
970 outw(RxReset, ioaddr + EL3_CMD);
971 /* Set the Rx filter to the current state. */
972 outw(SetRxFilter | RxStation | RxBroadcast
973 | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
974 | (dev->flags & IFF_PROMISC ? RxProm : 0),
976 outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
977 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
982 printk("%s: Infinite loop in interrupt, status %4.4x.\n",
984 /* Clear all interrupts. */
985 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
988 /* Acknowledge the IRQ. */
989 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
993 printk("%s: exiting interrupt, status %4.4x.\n", dev->name,
994 inw(ioaddr + EL3_STATUS));
996 spin_unlock(&lp->lock);
1001 #ifdef CONFIG_NET_POLL_CONTROLLER
1003 * Polling receive - used by netconsole and other diagnostic tools
1004 * to allow network i/o with interrupts disabled.
1006 static void el3_poll_controller(struct net_device *dev)
1008 disable_irq(dev->irq);
1009 el3_interrupt(dev->irq, dev, NULL);
1010 enable_irq(dev->irq);
1014 static struct net_device_stats *
1015 el3_get_stats(struct net_device *dev)
1017 struct el3_private *lp = netdev_priv(dev);
1018 unsigned long flags;
1021 * This is fast enough not to bother with disable IRQ
1025 spin_lock_irqsave(&lp->lock, flags);
1027 spin_unlock_irqrestore(&lp->lock, flags);
1031 /* Update statistics. We change to register window 6, so this should be run
1032 single-threaded if the device is active. This is expected to be a rare
1033 operation, and it's simpler for the rest of the driver to assume that
1034 window 1 is always valid rather than use a special window-state variable.
1036 static void update_stats(struct net_device *dev)
1038 struct el3_private *lp = netdev_priv(dev);
1039 int ioaddr = dev->base_addr;
1042 printk(" Updating the statistics.\n");
1043 /* Turn off statistics updates while reading. */
1044 outw(StatsDisable, ioaddr + EL3_CMD);
1045 /* Switch to the stats window, and read everything. */
1047 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1048 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1049 /* Multiple collisions. */ inb(ioaddr + 2);
1050 lp->stats.collisions += inb(ioaddr + 3);
1051 lp->stats.tx_window_errors += inb(ioaddr + 4);
1052 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1053 lp->stats.tx_packets += inb(ioaddr + 6);
1054 /* Rx packets */ inb(ioaddr + 7);
1055 /* Tx deferrals */ inb(ioaddr + 8);
1056 inw(ioaddr + 10); /* Total Rx and Tx octets. */
1059 /* Back to window 1, and turn statistics back on. */
1061 outw(StatsEnable, ioaddr + EL3_CMD);
1066 el3_rx(struct net_device *dev)
1068 struct el3_private *lp = netdev_priv(dev);
1069 int ioaddr = dev->base_addr;
1073 printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
1074 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
1075 while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
1076 if (rx_status & 0x4000) { /* Error, update stats. */
1077 short error = rx_status & 0x3800;
1079 outw(RxDiscard, ioaddr + EL3_CMD);
1080 lp->stats.rx_errors++;
1082 case 0x0000: lp->stats.rx_over_errors++; break;
1083 case 0x0800: lp->stats.rx_length_errors++; break;
1084 case 0x1000: lp->stats.rx_frame_errors++; break;
1085 case 0x1800: lp->stats.rx_length_errors++; break;
1086 case 0x2000: lp->stats.rx_frame_errors++; break;
1087 case 0x2800: lp->stats.rx_crc_errors++; break;
1090 short pkt_len = rx_status & 0x7ff;
1091 struct sk_buff *skb;
1093 skb = dev_alloc_skb(pkt_len+5);
1094 lp->stats.rx_bytes += pkt_len;
1096 printk("Receiving packet size %d status %4.4x.\n",
1097 pkt_len, rx_status);
1100 skb_reserve(skb, 2); /* Align IP on 16 byte */
1102 /* 'skb->data' points to the start of sk_buff data area. */
1103 insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
1104 (pkt_len + 3) >> 2);
1106 outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
1107 skb->protocol = eth_type_trans(skb,dev);
1109 dev->last_rx = jiffies;
1110 lp->stats.rx_packets++;
1113 outw(RxDiscard, ioaddr + EL3_CMD);
1114 lp->stats.rx_dropped++;
1116 printk("%s: Couldn't allocate a sk_buff of size %d.\n",
1117 dev->name, pkt_len);
1119 inw(ioaddr + EL3_STATUS); /* Delay. */
1120 while (inw(ioaddr + EL3_STATUS) & 0x1000)
1121 printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n",
1122 inw(ioaddr + EL3_STATUS) );
1129 * Set or clear the multicast filter for this adaptor.
1132 set_multicast_list(struct net_device *dev)
1134 unsigned long flags;
1135 struct el3_private *lp = netdev_priv(dev);
1136 int ioaddr = dev->base_addr;
1138 if (el3_debug > 1) {
1140 if (old != dev->mc_count) {
1141 old = dev->mc_count;
1142 printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count);
1145 spin_lock_irqsave(&lp->lock, flags);
1146 if (dev->flags&IFF_PROMISC) {
1147 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1150 else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) {
1151 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
1154 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1155 spin_unlock_irqrestore(&lp->lock, flags);
1159 el3_close(struct net_device *dev)
1161 int ioaddr = dev->base_addr;
1162 struct el3_private *lp = netdev_priv(dev);
1165 printk("%s: Shutting down ethercard.\n", dev->name);
1169 free_irq(dev->irq, dev);
1170 /* Switching back to window 0 disables the IRQ. */
1172 if (lp->type != EL3_EISA) {
1173 /* But we explicitly zero the IRQ line select anyway. Don't do
1174 * it on EISA cards, it prevents the module from getting an
1175 * IRQ after unload+reload... */
1176 outw(0x0f00, ioaddr + WN0_IRQ);
1183 el3_link_ok(struct net_device *dev)
1185 int ioaddr = dev->base_addr;
1189 tmp = inw(ioaddr + WN4_MEDIA);
1191 return tmp & (1<<11);
1195 el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1198 int ioaddr = dev->base_addr;
1201 /* obtain current transceiver via WN4_MEDIA? */
1202 tmp = inw(ioaddr + WN0_ADDR_CONF);
1203 ecmd->transceiver = XCVR_INTERNAL;
1204 switch (tmp >> 14) {
1206 ecmd->port = PORT_TP;
1209 ecmd->port = PORT_AUI;
1210 ecmd->transceiver = XCVR_EXTERNAL;
1213 ecmd->port = PORT_BNC;
1218 ecmd->duplex = DUPLEX_HALF;
1219 ecmd->supported = 0;
1220 tmp = inw(ioaddr + WN0_CONF_CTRL);
1222 ecmd->supported |= SUPPORTED_AUI;
1224 ecmd->supported |= SUPPORTED_BNC;
1226 ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half |
1227 SUPPORTED_10baseT_Full; /* hmm... */
1229 tmp = inw(ioaddr + WN4_NETDIAG);
1230 if (tmp & FD_ENABLE)
1231 ecmd->duplex = DUPLEX_FULL;
1234 ecmd->speed = SPEED_10;
1240 el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1243 int ioaddr = dev->base_addr;
1245 if (ecmd->speed != SPEED_10)
1247 if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL))
1249 if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL))
1252 /* change XCVR type */
1254 tmp = inw(ioaddr + WN0_ADDR_CONF);
1255 switch (ecmd->port) {
1272 outw(tmp, ioaddr + WN0_ADDR_CONF);
1273 if (dev->if_port == 3) {
1274 /* fire up the DC-DC convertor if BNC gets enabled */
1275 tmp = inw(ioaddr + WN0_ADDR_CONF);
1276 if (tmp & (3 << 14)) {
1277 outw(StartCoax, ioaddr + EL3_CMD);
1284 tmp = inw(ioaddr + WN4_NETDIAG);
1285 if (ecmd->duplex == DUPLEX_FULL)
1289 outw(tmp, ioaddr + WN4_NETDIAG);
1295 static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1297 strcpy(info->driver, DRV_NAME);
1298 strcpy(info->version, DRV_VERSION);
1301 static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1303 struct el3_private *lp = netdev_priv(dev);
1306 spin_lock_irq(&lp->lock);
1307 ret = el3_netdev_get_ecmd(dev, ecmd);
1308 spin_unlock_irq(&lp->lock);
1312 static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1314 struct el3_private *lp = netdev_priv(dev);
1317 spin_lock_irq(&lp->lock);
1318 ret = el3_netdev_set_ecmd(dev, ecmd);
1319 spin_unlock_irq(&lp->lock);
1323 static u32 el3_get_link(struct net_device *dev)
1325 struct el3_private *lp = netdev_priv(dev);
1328 spin_lock_irq(&lp->lock);
1329 ret = el3_link_ok(dev);
1330 spin_unlock_irq(&lp->lock);
1334 static u32 el3_get_msglevel(struct net_device *dev)
1339 static void el3_set_msglevel(struct net_device *dev, u32 v)
1344 static const struct ethtool_ops ethtool_ops = {
1345 .get_drvinfo = el3_get_drvinfo,
1346 .get_settings = el3_get_settings,
1347 .set_settings = el3_set_settings,
1348 .get_link = el3_get_link,
1349 .get_msglevel = el3_get_msglevel,
1350 .set_msglevel = el3_set_msglevel,
1354 el3_down(struct net_device *dev)
1356 int ioaddr = dev->base_addr;
1358 netif_stop_queue(dev);
1360 /* Turn off statistics ASAP. We update lp->stats below. */
1361 outw(StatsDisable, ioaddr + EL3_CMD);
1363 /* Disable the receiver and transmitter. */
1364 outw(RxDisable, ioaddr + EL3_CMD);
1365 outw(TxDisable, ioaddr + EL3_CMD);
1367 if (dev->if_port == 3)
1368 /* Turn off thinnet power. Green! */
1369 outw(StopCoax, ioaddr + EL3_CMD);
1370 else if (dev->if_port == 0) {
1371 /* Disable link beat and jabber, if_port may change here next open(). */
1373 outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
1376 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1382 el3_up(struct net_device *dev)
1384 int i, sw_info, net_diag;
1385 int ioaddr = dev->base_addr;
1387 /* Activating the board required and does no harm otherwise */
1388 outw(0x0001, ioaddr + 4);
1390 /* Set the IRQ line. */
1391 outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
1393 /* Set the station address in window 2 each time opened. */
1396 for (i = 0; i < 6; i++)
1397 outb(dev->dev_addr[i], ioaddr + i);
1399 if ((dev->if_port & 0x03) == 3) /* BNC interface */
1400 /* Start the thinnet transceiver. We should really wait 50ms...*/
1401 outw(StartCoax, ioaddr + EL3_CMD);
1402 else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */
1403 /* Combine secondary sw_info word (the adapter level) and primary
1404 sw_info word (duplex setting plus other useless bits) */
1406 sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) |
1407 (read_eeprom(ioaddr, 0x0d) & 0xBff0);
1410 net_diag = inw(ioaddr + WN4_NETDIAG);
1411 net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */
1412 printk("%s: ", dev->name);
1413 switch (dev->if_port & 0x0c) {
1415 /* force full-duplex mode if 3c5x9b */
1416 if (sw_info & 0x000f) {
1417 printk("Forcing 3c5x9b full-duplex mode");
1421 /* set full-duplex mode based on eeprom config setting */
1422 if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
1423 printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
1427 /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
1428 printk("Setting 3c5x9/3c5x9B half-duplex mode");
1429 net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */
1432 outw(net_diag, ioaddr + WN4_NETDIAG);
1433 printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info);
1435 printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag);
1436 /* Enable link beat and jabber check. */
1437 outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
1440 /* Switch to the stats window, and clear all stats by reading. */
1441 outw(StatsDisable, ioaddr + EL3_CMD);
1443 for (i = 0; i < 9; i++)
1448 /* Switch to register set 1 for normal use. */
1451 /* Accept b-case and phys addr only. */
1452 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1453 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
1455 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1456 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
1457 /* Allow status bits to be seen. */
1458 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
1459 /* Ack all pending events, and set active indicator mask. */
1460 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
1462 outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
1465 netif_start_queue(dev);
1468 /* Power Management support functions */
1472 el3_suspend(struct device *pdev, pm_message_t state)
1474 unsigned long flags;
1475 struct net_device *dev;
1476 struct el3_private *lp;
1479 dev = pdev->driver_data;
1480 lp = netdev_priv(dev);
1481 ioaddr = dev->base_addr;
1483 spin_lock_irqsave(&lp->lock, flags);
1485 if (netif_running(dev))
1486 netif_device_detach(dev);
1489 outw(PowerDown, ioaddr + EL3_CMD);
1491 spin_unlock_irqrestore(&lp->lock, flags);
1496 el3_resume(struct device *pdev)
1498 unsigned long flags;
1499 struct net_device *dev;
1500 struct el3_private *lp;
1503 dev = pdev->driver_data;
1504 lp = netdev_priv(dev);
1505 ioaddr = dev->base_addr;
1507 spin_lock_irqsave(&lp->lock, flags);
1509 outw(PowerUp, ioaddr + EL3_CMD);
1512 if (netif_running(dev))
1513 netif_device_attach(dev);
1515 spin_unlock_irqrestore(&lp->lock, flags);
1519 #endif /* EL3_SUSPEND */
1521 /* Parameters that may be passed into the module. */
1522 static int debug = -1;
1523 static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
1524 static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
1526 module_param(debug,int, 0);
1527 module_param_array(irq, int, NULL, 0);
1528 module_param_array(xcvr, int, NULL, 0);
1529 module_param(max_interrupt_work, int, 0);
1530 MODULE_PARM_DESC(debug, "debug level (0-6)");
1531 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
1532 MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)");
1533 MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
1534 #if defined(__ISAPNP__)
1535 module_param(nopnp, int, 0);
1536 MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
1537 MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
1538 #endif /* __ISAPNP__ */
1539 MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver");
1540 MODULE_LICENSE("GPL");
1542 static int __init el3_init_module(void)
1550 el3_root_dev = NULL;
1551 while (el3_probe(el3_cards) == 0) {
1552 if (irq[el3_cards] > 1)
1553 el3_root_dev->irq = irq[el3_cards];
1554 if (xcvr[el3_cards] >= 0)
1555 el3_root_dev->if_port = xcvr[el3_cards];
1560 ret = eisa_driver_register(&el3_eisa_driver);
1564 int err = mca_register_driver(&el3_mca_driver);
1572 static void __exit el3_cleanup_module(void)
1574 struct net_device *next_dev;
1576 while (el3_root_dev) {
1577 struct el3_private *lp = netdev_priv(el3_root_dev);
1579 next_dev = lp->next_dev;
1580 el3_common_remove (el3_root_dev);
1581 el3_root_dev = next_dev;
1585 eisa_driver_unregister (&el3_eisa_driver);
1588 mca_unregister_driver(&el3_mca_driver);
1592 module_init (el3_init_module);
1593 module_exit (el3_cleanup_module);