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/config.h>
72 #include <linux/module.h>
74 #include <linux/mca.h>
76 #include <linux/isapnp.h>
77 #include <linux/string.h>
78 #include <linux/interrupt.h>
79 #include <linux/errno.h>
81 #include <linux/slab.h>
82 #include <linux/ioport.h>
83 #include <linux/init.h>
84 #include <linux/netdevice.h>
85 #include <linux/etherdevice.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";
103 static int el3_debug = EL3_DEBUG;
105 static int el3_debug = 2;
108 /* Used to do a global count of all the cards in the system. Must be
109 * a global variable so that the mca/eisa probe routines can increment
111 static int el3_cards = 0;
113 /* To minimize the size of the driver source I only define operating
114 constants if they are used several times. You'll need the manual
115 anyway if you want to understand driver details. */
116 /* Offsets from base I/O address. */
117 #define EL3_DATA 0x00
119 #define EL3_STATUS 0x0e
120 #define EEPROM_READ 0x80
122 #define EL3_IO_EXTENT 16
124 #define EL3WINDOW(win_num) outw(SelectWindow + (win_num), ioaddr + EL3_CMD)
127 /* The top five bits written to EL3_CMD are a command, the lower
128 11 bits are the parameter, if applicable. */
130 TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11,
131 RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11,
132 TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11,
133 FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11,
134 SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11,
135 SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11,
136 StatsDisable = 22<<11, StopCoax = 23<<11, PowerUp = 27<<11,
137 PowerDown = 28<<11, PowerAuto = 29<<11};
140 IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004,
141 TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020,
142 IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000, };
144 /* The SetRxFilter command accepts the following classes: */
146 RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 };
148 /* Register window 1 offsets, the window used in normal operation. */
151 #define RX_STATUS 0x08
152 #define TX_STATUS 0x0B
153 #define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */
155 #define WN0_CONF_CTRL 0x04 /* Window 0: Configuration control register */
156 #define WN0_ADDR_CONF 0x06 /* Window 0: Address configuration register */
157 #define WN0_IRQ 0x08 /* Window 0: Set IRQ line in bits 12-15. */
158 #define WN4_MEDIA 0x0A /* Window 4: Various transcvr/media bits. */
159 #define MEDIA_TP 0x00C0 /* Enable link beat and jabber for 10baseT. */
160 #define WN4_NETDIAG 0x06 /* Window 4: Net diagnostic */
161 #define FD_ENABLE 0x8000 /* Enable full-duplex ("external loopback") */
164 * Must be a power of two (we use a binary and in the
167 #define SKB_QUEUE_SIZE 64
170 struct net_device_stats stats;
171 struct net_device *next_dev;
175 struct sk_buff *queue[SKB_QUEUE_SIZE];
177 struct pm_dev *pmdev;
183 } type; /* type of device */
186 static int id_port __initdata = 0x110; /* Start with 0x110 to avoid new sound cards.*/
187 static struct net_device *el3_root_dev;
189 static ushort id_read_eeprom(int index);
190 static ushort read_eeprom(int ioaddr, int index);
191 static int el3_open(struct net_device *dev);
192 static int el3_start_xmit(struct sk_buff *skb, struct net_device *dev);
193 static irqreturn_t el3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
194 static void update_stats(struct net_device *dev);
195 static struct net_device_stats *el3_get_stats(struct net_device *dev);
196 static int el3_rx(struct net_device *dev);
197 static int el3_close(struct net_device *dev);
198 static void set_multicast_list(struct net_device *dev);
199 static void el3_tx_timeout (struct net_device *dev);
200 static void el3_down(struct net_device *dev);
201 static void el3_up(struct net_device *dev);
202 static struct ethtool_ops ethtool_ops;
204 static int el3_suspend(struct pm_dev *pdev);
205 static int el3_resume(struct pm_dev *pdev);
206 static int el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data);
208 /* generic device remove for all device types */
209 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
210 static int el3_device_remove (struct device *device);
212 #ifdef CONFIG_NET_POLL_CONTROLLER
213 static void el3_poll_controller(struct net_device *dev);
217 static struct eisa_device_id el3_eisa_ids[] = {
223 static int el3_eisa_probe (struct device *device);
225 static struct eisa_driver el3_eisa_driver = {
226 .id_table = el3_eisa_ids,
229 .probe = el3_eisa_probe,
230 .remove = __devexit_p (el3_device_remove)
236 static int el3_mca_probe(struct device *dev);
238 static short el3_mca_adapter_ids[] __initdata = {
247 static char *el3_mca_adapter_names[] __initdata = {
248 "3Com 3c529 EtherLink III (10base2)",
249 "3Com 3c529 EtherLink III (10baseT)",
250 "3Com 3c529 EtherLink III (test mode)",
251 "3Com 3c529 EtherLink III (TP or coax)",
252 "3Com 3c529 EtherLink III (TP)",
256 static struct mca_driver el3_mca_driver = {
257 .id_table = el3_mca_adapter_ids,
260 .bus = &mca_bus_type,
261 .probe = el3_mca_probe,
262 .remove = __devexit_p(el3_device_remove),
265 #endif /* CONFIG_MCA */
267 #if defined(__ISAPNP__)
268 static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
269 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
270 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
271 (long) "3Com Etherlink III (TP)" },
272 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
273 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
274 (long) "3Com Etherlink III" },
275 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
276 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
277 (long) "3Com Etherlink III (combo)" },
278 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
279 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
280 (long) "3Com Etherlink III (TPO)" },
281 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
282 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
283 (long) "3Com Etherlink III (TPC)" },
284 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
285 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
286 (long) "3Com Etherlink III compatible" },
287 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
288 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
289 (long) "3Com Etherlink III compatible" },
290 { } /* terminate list */
293 static u16 el3_isapnp_phys_addr[8][3];
295 #endif /* __ISAPNP__ */
297 /* With the driver model introduction for EISA devices, both init
298 * and cleanup have been split :
299 * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove
300 * - MCA/ISA still use el3_probe
302 * Both call el3_common_init/el3_common_remove. */
304 static int __init el3_common_init(struct net_device *dev)
306 struct el3_private *lp = netdev_priv(dev);
310 spin_lock_init(&lp->lock);
312 if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */
313 dev->if_port = (dev->mem_start & 0x0f);
314 } else { /* xcvr codes 0/8 */
315 /* use eeprom value, but save user's full-duplex selection */
316 dev->if_port |= (dev->mem_start & 0x08);
319 /* The EL3-specific entries in the device structure. */
320 dev->open = &el3_open;
321 dev->hard_start_xmit = &el3_start_xmit;
322 dev->stop = &el3_close;
323 dev->get_stats = &el3_get_stats;
324 dev->set_multicast_list = &set_multicast_list;
325 dev->tx_timeout = el3_tx_timeout;
326 dev->watchdog_timeo = TX_TIMEOUT;
327 #ifdef CONFIG_NET_POLL_CONTROLLER
328 dev->poll_controller = el3_poll_controller;
330 SET_ETHTOOL_OPS(dev, ðtool_ops);
332 err = register_netdev(dev);
334 printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n",
335 dev->base_addr, dev->irq);
336 release_region(dev->base_addr, EL3_IO_EXTENT);
341 const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
342 printk("%s: 3c5x9 found at %#3.3lx, %s port, address ",
343 dev->name, dev->base_addr,
344 if_names[(dev->if_port & 0x03)]);
347 /* Read in the station address. */
348 for (i = 0; i < 6; i++)
349 printk(" %2.2x", dev->dev_addr[i]);
350 printk(", IRQ %d.\n", dev->irq);
353 printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
358 static void el3_common_remove (struct net_device *dev)
360 struct el3_private *lp = netdev_priv(dev);
362 (void) lp; /* Keep gcc quiet... */
365 pm_unregister(lp->pmdev);
367 #if defined(__ISAPNP__)
368 if (lp->type == EL3_PNP)
369 pnp_device_detach(to_pnp_dev(lp->dev));
372 unregister_netdev (dev);
373 release_region(dev->base_addr, EL3_IO_EXTENT);
377 static int __init el3_probe(int card_idx)
379 struct net_device *dev;
380 struct el3_private *lp;
381 short lrs_state = 0xff, i;
382 int ioaddr, irq, if_port;
384 static int current_tag;
386 #if defined(__ISAPNP__)
387 static int pnp_cards;
388 struct pnp_dev *idev = NULL;
393 for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
395 while ((idev = pnp_find_dev(NULL,
396 el3_isapnp_adapters[i].vendor,
397 el3_isapnp_adapters[i].function,
399 if (pnp_device_attach(idev) < 0)
401 if (pnp_activate_dev(idev) < 0) {
403 pnp_device_detach(idev);
406 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
408 ioaddr = pnp_port_start(idev, 0);
409 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) {
410 pnp_device_detach(idev);
413 irq = pnp_irq(idev, 0);
415 printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
416 (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
418 for (j = 0; j < 3; j++)
419 el3_isapnp_phys_addr[pnp_cards][j] =
421 htons(read_eeprom(ioaddr, j));
422 if_port = read_eeprom(ioaddr, 8) >> 14;
423 dev = alloc_etherdev(sizeof (struct el3_private));
425 release_region(ioaddr, EL3_IO_EXTENT);
426 pnp_device_detach(idev);
430 SET_MODULE_OWNER(dev);
431 SET_NETDEV_DEV(dev, &idev->dev);
434 netdev_boot_setup_check(dev);
439 #endif /* __ISAPNP__ */
441 /* Select an open I/O location at 0x1*0 to do contention select. */
442 for ( ; id_port < 0x200; id_port += 0x10) {
443 if (!request_region(id_port, 1, "3c509"))
447 if (inb(id_port) & 0x01){
448 release_region(id_port, 1);
451 release_region(id_port, 1);
453 if (id_port >= 0x200) {
454 /* Rare -- do we really need a warning? */
455 printk(" WARNING: No I/O port available for 3c509 activation.\n");
459 /* Next check for all ISA bus boards by sending the ID sequence to the
460 ID_PORT. We find cards past the first by setting the 'current_tag'
461 on cards as they are found. Cards with their tag set will not
462 respond to subsequent ID sequences. */
466 for(i = 0; i < 255; i++) {
467 outb(lrs_state, id_port);
469 lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
472 /* For the first probe, clear all board's tag registers. */
473 if (current_tag == 0)
475 else /* Otherwise kill off already-found boards. */
478 if (id_read_eeprom(7) != 0x6d50) {
482 /* Read in EEPROM data, which does contention-select.
483 Only the lowest address board will stay "on-line".
484 3Com got the byte order backwards. */
485 for (i = 0; i < 3; i++) {
486 phys_addr[i] = htons(id_read_eeprom(i));
489 #if defined(__ISAPNP__)
491 /* The ISA PnP 3c509 cards respond to the ID sequence.
492 This check is needed in order not to register them twice. */
493 for (i = 0; i < pnp_cards; i++) {
494 if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
495 phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
496 phys_addr[2] == el3_isapnp_phys_addr[i][2])
499 printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
500 phys_addr[0] & 0xff, phys_addr[0] >> 8,
501 phys_addr[1] & 0xff, phys_addr[1] >> 8,
502 phys_addr[2] & 0xff, phys_addr[2] >> 8);
503 /* Set the adaptor tag so that the next card can be found. */
504 outb(0xd0 + ++current_tag, id_port);
509 #endif /* __ISAPNP__ */
512 unsigned int iobase = id_read_eeprom(8);
513 if_port = iobase >> 14;
514 ioaddr = 0x200 + ((iobase & 0x1f) << 4);
516 irq = id_read_eeprom(9) >> 12;
518 dev = alloc_etherdev(sizeof (struct el3_private));
522 SET_MODULE_OWNER(dev);
524 netdev_boot_setup_check(dev);
526 /* Set passed-in IRQ or I/O Addr. */
527 if (dev->irq > 1 && dev->irq < 16)
530 if (dev->base_addr) {
531 if (dev->mem_end == 0x3c509 /* Magic key */
532 && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0)
533 ioaddr = dev->base_addr & 0x3f0;
534 else if (dev->base_addr != ioaddr)
538 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
543 /* Set the adaptor tag so that the next card can be found. */
544 outb(0xd0 + ++current_tag, id_port);
546 /* Activate the adaptor at the EEPROM location. */
547 outb((ioaddr >> 4) | 0xe0, id_port);
550 if (inw(ioaddr) != 0x6d50)
553 /* Free the interrupt so that some other card can use it. */
554 outw(0x0f00, ioaddr + WN0_IRQ);
556 #if defined(__ISAPNP__)
557 found: /* PNP jumps here... */
558 #endif /* __ISAPNP__ */
560 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
561 dev->base_addr = ioaddr;
563 dev->if_port = if_port;
564 lp = netdev_priv(dev);
565 #if defined(__ISAPNP__)
566 lp->dev = &idev->dev;
568 err = el3_common_init(dev);
574 /* register power management */
575 lp->pmdev = pm_register(PM_ISA_DEV, card_idx, el3_pm_callback);
579 p->data = (struct net_device *)dev;
584 lp->next_dev = el3_root_dev;
589 #if defined(__ISAPNP__)
591 pnp_device_detach(idev);
599 static int __init el3_mca_probe(struct device *device)
601 /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
602 * heavily modified by Chris Beauregard
603 * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA
606 * redone for multi-card detection by ZP Gu (zpg@castle.net)
607 * now works as a module */
609 struct el3_private *lp;
611 int ioaddr, irq, if_port;
613 struct net_device *dev = NULL;
615 struct mca_device *mdev = to_mca_device(device);
616 int slot = mdev->slot;
619 pos4 = mca_device_read_stored_pos(mdev, 4);
620 pos5 = mca_device_read_stored_pos(mdev, 5);
622 ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
626 printk("3c529: found %s at slot %d\n",
627 el3_mca_adapter_names[mdev->index], slot + 1);
630 strncpy(mdev->name, el3_mca_adapter_names[mdev->index],
632 mca_device_set_claim(mdev, 1);
634 if_port = pos4 & 0x03;
636 irq = mca_device_transform_irq(mdev, irq);
637 ioaddr = mca_device_transform_ioport(mdev, ioaddr);
639 printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
642 for (i = 0; i < 3; i++) {
643 phys_addr[i] = htons(read_eeprom(ioaddr, i));
646 dev = alloc_etherdev(sizeof (struct el3_private));
648 release_region(ioaddr, EL3_IO_EXTENT);
652 SET_MODULE_OWNER(dev);
653 netdev_boot_setup_check(dev);
655 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
656 dev->base_addr = ioaddr;
658 dev->if_port = if_port;
659 lp = netdev_priv(dev);
662 device->driver_data = dev;
663 err = el3_common_init(dev);
666 device->driver_data = NULL;
675 #endif /* CONFIG_MCA */
678 static int __init el3_eisa_probe (struct device *device)
680 struct el3_private *lp;
682 int ioaddr, irq, if_port;
684 struct net_device *dev = NULL;
685 struct eisa_device *edev;
688 /* Yeepee, The driver framework is calling us ! */
689 edev = to_eisa_device (device);
690 ioaddr = edev->base_addr;
692 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509"))
695 /* Change the register set to the configuration window 0. */
696 outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
698 irq = inw(ioaddr + WN0_IRQ) >> 12;
699 if_port = inw(ioaddr + 6)>>14;
700 for (i = 0; i < 3; i++)
701 phys_addr[i] = htons(read_eeprom(ioaddr, i));
703 /* Restore the "Product ID" to the EEPROM read register. */
704 read_eeprom(ioaddr, 3);
706 dev = alloc_etherdev(sizeof (struct el3_private));
708 release_region(ioaddr, EL3_IO_EXTENT);
712 SET_MODULE_OWNER(dev);
714 netdev_boot_setup_check(dev);
716 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
717 dev->base_addr = ioaddr;
719 dev->if_port = if_port;
720 lp = netdev_priv(dev);
723 eisa_set_drvdata (edev, dev);
724 err = el3_common_init(dev);
727 eisa_set_drvdata (edev, NULL);
737 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
738 /* This remove works for all device types.
740 * The net dev must be stored in the driver_data field */
741 static int __devexit el3_device_remove (struct device *device)
743 struct net_device *dev;
745 dev = device->driver_data;
747 el3_common_remove (dev);
752 /* Read a word from the EEPROM using the regular EEPROM access register.
753 Assume that we are in register window zero.
755 static ushort read_eeprom(int ioaddr, int index)
757 outw(EEPROM_READ + index, ioaddr + 10);
758 /* Pause for at least 162 us. for the read to take place.
759 Some chips seem to require much longer */
761 return inw(ioaddr + 12);
764 /* Read a word from the EEPROM when in the ISA ID probe state. */
765 static ushort __init id_read_eeprom(int index)
769 /* Issue read command, and pause for at least 162 us. for it to complete.
770 Assume extra-fast 16Mhz bus. */
771 outb(EEPROM_READ + index, id_port);
773 /* Pause for at least 162 us. for the read to take place. */
774 /* Some chips seem to require much longer */
777 for (bit = 15; bit >= 0; bit--)
778 word = (word << 1) + (inb(id_port) & 0x01);
781 printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
788 el3_open(struct net_device *dev)
790 int ioaddr = dev->base_addr;
793 outw(TxReset, ioaddr + EL3_CMD);
794 outw(RxReset, ioaddr + EL3_CMD);
795 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
797 i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev);
803 printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
804 dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
809 printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
810 dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
816 el3_tx_timeout (struct net_device *dev)
818 struct el3_private *lp = netdev_priv(dev);
819 int ioaddr = dev->base_addr;
821 /* Transmitter timeout, serious problems. */
822 printk("%s: transmit timed out, Tx_status %2.2x status %4.4x "
823 "Tx FIFO room %d.\n",
824 dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
825 inw(ioaddr + TX_FREE));
826 lp->stats.tx_errors++;
827 dev->trans_start = jiffies;
828 /* Issue TX_RESET and TX_START commands. */
829 outw(TxReset, ioaddr + EL3_CMD);
830 outw(TxEnable, ioaddr + EL3_CMD);
831 netif_wake_queue(dev);
836 el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
838 struct el3_private *lp = netdev_priv(dev);
839 int ioaddr = dev->base_addr;
842 netif_stop_queue (dev);
844 lp->stats.tx_bytes += skb->len;
847 printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
848 dev->name, skb->len, inw(ioaddr + EL3_STATUS));
851 #ifndef final_version
852 { /* Error-checking code, delete someday. */
853 ushort status = inw(ioaddr + EL3_STATUS);
854 if (status & 0x0001 /* IRQ line active, missed one. */
855 && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */
856 printk("%s: Missed interrupt, status then %04x now %04x"
857 " Tx %2.2x Rx %4.4x.\n", dev->name, status,
858 inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
859 inw(ioaddr + RX_STATUS));
860 /* Fake interrupt trigger by masking, acknowledge interrupts. */
861 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
862 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
864 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
870 * We lock the driver against other processors. Note
871 * we don't need to lock versus the IRQ as we suspended
872 * that. This means that we lose the ability to take
873 * an RX during a TX upload. That sucks a bit with SMP
874 * on an original 3c509 (2K buffer)
876 * Using disable_irq stops us crapping on other
877 * time sensitive devices.
880 spin_lock_irqsave(&lp->lock, flags);
882 /* Put out the doubleword header... */
883 outw(skb->len, ioaddr + TX_FIFO);
884 outw(0x00, ioaddr + TX_FIFO);
885 /* ... and the packet rounded to a doubleword. */
887 outsl_ns(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
889 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
892 dev->trans_start = jiffies;
893 if (inw(ioaddr + TX_FREE) > 1536)
894 netif_start_queue(dev);
896 /* Interrupt us when the FIFO has room for max-sized packet. */
897 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
899 spin_unlock_irqrestore(&lp->lock, flags);
903 /* Clear the Tx status stack. */
908 while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
909 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
910 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
911 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
912 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
918 /* The EL3 interrupt handler. */
920 el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
922 struct net_device *dev = (struct net_device *)dev_id;
923 struct el3_private *lp;
925 int i = max_interrupt_work;
928 printk ("el3_interrupt(): irq %d for unknown device.\n", irq);
932 lp = netdev_priv(dev);
933 spin_lock(&lp->lock);
935 ioaddr = dev->base_addr;
938 status = inw(ioaddr + EL3_STATUS);
939 printk("%s: interrupt, status %4.4x.\n", dev->name, status);
942 while ((status = inw(ioaddr + EL3_STATUS)) &
943 (IntLatch | RxComplete | StatsFull)) {
945 if (status & RxComplete)
948 if (status & TxAvailable) {
950 printk(" TX room bit was handled.\n");
951 /* There's room in the FIFO for a full-sized packet. */
952 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
953 netif_wake_queue (dev);
955 if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
956 /* Handle all uncommon interrupts. */
957 if (status & StatsFull) /* Empty statistics. */
959 if (status & RxEarly) { /* Rx early is unused. */
961 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
963 if (status & TxComplete) { /* Really Tx error. */
964 struct el3_private *lp = netdev_priv(dev);
968 while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
969 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
970 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
971 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
972 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
975 if (status & AdapterFailure) {
976 /* Adapter failure requires Rx reset and reinit. */
977 outw(RxReset, ioaddr + EL3_CMD);
978 /* Set the Rx filter to the current state. */
979 outw(SetRxFilter | RxStation | RxBroadcast
980 | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
981 | (dev->flags & IFF_PROMISC ? RxProm : 0),
983 outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
984 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
989 printk("%s: Infinite loop in interrupt, status %4.4x.\n",
991 /* Clear all interrupts. */
992 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
995 /* Acknowledge the IRQ. */
996 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
1000 printk("%s: exiting interrupt, status %4.4x.\n", dev->name,
1001 inw(ioaddr + EL3_STATUS));
1003 spin_unlock(&lp->lock);
1008 #ifdef CONFIG_NET_POLL_CONTROLLER
1010 * Polling receive - used by netconsole and other diagnostic tools
1011 * to allow network i/o with interrupts disabled.
1013 static void el3_poll_controller(struct net_device *dev)
1015 disable_irq(dev->irq);
1016 el3_interrupt(dev->irq, dev, NULL);
1017 enable_irq(dev->irq);
1021 static struct net_device_stats *
1022 el3_get_stats(struct net_device *dev)
1024 struct el3_private *lp = netdev_priv(dev);
1025 unsigned long flags;
1028 * This is fast enough not to bother with disable IRQ
1032 spin_lock_irqsave(&lp->lock, flags);
1034 spin_unlock_irqrestore(&lp->lock, flags);
1038 /* Update statistics. We change to register window 6, so this should be run
1039 single-threaded if the device is active. This is expected to be a rare
1040 operation, and it's simpler for the rest of the driver to assume that
1041 window 1 is always valid rather than use a special window-state variable.
1043 static void update_stats(struct net_device *dev)
1045 struct el3_private *lp = netdev_priv(dev);
1046 int ioaddr = dev->base_addr;
1049 printk(" Updating the statistics.\n");
1050 /* Turn off statistics updates while reading. */
1051 outw(StatsDisable, ioaddr + EL3_CMD);
1052 /* Switch to the stats window, and read everything. */
1054 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1055 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1056 /* Multiple collisions. */ inb(ioaddr + 2);
1057 lp->stats.collisions += inb(ioaddr + 3);
1058 lp->stats.tx_window_errors += inb(ioaddr + 4);
1059 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1060 lp->stats.tx_packets += inb(ioaddr + 6);
1061 /* Rx packets */ inb(ioaddr + 7);
1062 /* Tx deferrals */ inb(ioaddr + 8);
1063 inw(ioaddr + 10); /* Total Rx and Tx octets. */
1066 /* Back to window 1, and turn statistics back on. */
1068 outw(StatsEnable, ioaddr + EL3_CMD);
1073 el3_rx(struct net_device *dev)
1075 struct el3_private *lp = netdev_priv(dev);
1076 int ioaddr = dev->base_addr;
1080 printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
1081 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
1082 while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
1083 if (rx_status & 0x4000) { /* Error, update stats. */
1084 short error = rx_status & 0x3800;
1086 outw(RxDiscard, ioaddr + EL3_CMD);
1087 lp->stats.rx_errors++;
1089 case 0x0000: lp->stats.rx_over_errors++; break;
1090 case 0x0800: lp->stats.rx_length_errors++; break;
1091 case 0x1000: lp->stats.rx_frame_errors++; break;
1092 case 0x1800: lp->stats.rx_length_errors++; break;
1093 case 0x2000: lp->stats.rx_frame_errors++; break;
1094 case 0x2800: lp->stats.rx_crc_errors++; break;
1097 short pkt_len = rx_status & 0x7ff;
1098 struct sk_buff *skb;
1100 skb = dev_alloc_skb(pkt_len+5);
1101 lp->stats.rx_bytes += pkt_len;
1103 printk("Receiving packet size %d status %4.4x.\n",
1104 pkt_len, rx_status);
1107 skb_reserve(skb, 2); /* Align IP on 16 byte */
1109 /* 'skb->data' points to the start of sk_buff data area. */
1111 insl_ns(ioaddr+RX_FIFO, skb_put(skb,pkt_len),
1112 (pkt_len + 3) >> 2);
1114 insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
1115 (pkt_len + 3) >> 2);
1118 outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
1119 skb->protocol = eth_type_trans(skb,dev);
1121 dev->last_rx = jiffies;
1122 lp->stats.rx_packets++;
1125 outw(RxDiscard, ioaddr + EL3_CMD);
1126 lp->stats.rx_dropped++;
1128 printk("%s: Couldn't allocate a sk_buff of size %d.\n",
1129 dev->name, pkt_len);
1131 inw(ioaddr + EL3_STATUS); /* Delay. */
1132 while (inw(ioaddr + EL3_STATUS) & 0x1000)
1133 printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n",
1134 inw(ioaddr + EL3_STATUS) );
1141 * Set or clear the multicast filter for this adaptor.
1144 set_multicast_list(struct net_device *dev)
1146 unsigned long flags;
1147 struct el3_private *lp = netdev_priv(dev);
1148 int ioaddr = dev->base_addr;
1150 if (el3_debug > 1) {
1152 if (old != dev->mc_count) {
1153 old = dev->mc_count;
1154 printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count);
1157 spin_lock_irqsave(&lp->lock, flags);
1158 if (dev->flags&IFF_PROMISC) {
1159 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1162 else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) {
1163 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
1166 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1167 spin_unlock_irqrestore(&lp->lock, flags);
1171 el3_close(struct net_device *dev)
1173 int ioaddr = dev->base_addr;
1174 struct el3_private *lp = netdev_priv(dev);
1177 printk("%s: Shutting down ethercard.\n", dev->name);
1181 free_irq(dev->irq, dev);
1182 /* Switching back to window 0 disables the IRQ. */
1184 if (lp->type != EL3_EISA) {
1185 /* But we explicitly zero the IRQ line select anyway. Don't do
1186 * it on EISA cards, it prevents the module from getting an
1187 * IRQ after unload+reload... */
1188 outw(0x0f00, ioaddr + WN0_IRQ);
1195 el3_link_ok(struct net_device *dev)
1197 int ioaddr = dev->base_addr;
1201 tmp = inw(ioaddr + WN4_MEDIA);
1203 return tmp & (1<<11);
1207 el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1210 int ioaddr = dev->base_addr;
1213 /* obtain current transceiver via WN4_MEDIA? */
1214 tmp = inw(ioaddr + WN0_ADDR_CONF);
1215 ecmd->transceiver = XCVR_INTERNAL;
1216 switch (tmp >> 14) {
1218 ecmd->port = PORT_TP;
1221 ecmd->port = PORT_AUI;
1222 ecmd->transceiver = XCVR_EXTERNAL;
1225 ecmd->port = PORT_BNC;
1230 ecmd->duplex = DUPLEX_HALF;
1231 ecmd->supported = 0;
1232 tmp = inw(ioaddr + WN0_CONF_CTRL);
1234 ecmd->supported |= SUPPORTED_AUI;
1236 ecmd->supported |= SUPPORTED_BNC;
1238 ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half |
1239 SUPPORTED_10baseT_Full; /* hmm... */
1241 tmp = inw(ioaddr + WN4_NETDIAG);
1242 if (tmp & FD_ENABLE)
1243 ecmd->duplex = DUPLEX_FULL;
1246 ecmd->speed = SPEED_10;
1252 el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1255 int ioaddr = dev->base_addr;
1257 if (ecmd->speed != SPEED_10)
1259 if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL))
1261 if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL))
1264 /* change XCVR type */
1266 tmp = inw(ioaddr + WN0_ADDR_CONF);
1267 switch (ecmd->port) {
1284 outw(tmp, ioaddr + WN0_ADDR_CONF);
1285 if (dev->if_port == 3) {
1286 /* fire up the DC-DC convertor if BNC gets enabled */
1287 tmp = inw(ioaddr + WN0_ADDR_CONF);
1288 if (tmp & (3 << 14)) {
1289 outw(StartCoax, ioaddr + EL3_CMD);
1296 tmp = inw(ioaddr + WN4_NETDIAG);
1297 if (ecmd->duplex == DUPLEX_FULL)
1301 outw(tmp, ioaddr + WN4_NETDIAG);
1307 static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1309 strcpy(info->driver, DRV_NAME);
1310 strcpy(info->version, DRV_VERSION);
1313 static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1315 struct el3_private *lp = netdev_priv(dev);
1318 spin_lock_irq(&lp->lock);
1319 ret = el3_netdev_get_ecmd(dev, ecmd);
1320 spin_unlock_irq(&lp->lock);
1324 static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1326 struct el3_private *lp = netdev_priv(dev);
1329 spin_lock_irq(&lp->lock);
1330 ret = el3_netdev_set_ecmd(dev, ecmd);
1331 spin_unlock_irq(&lp->lock);
1335 static u32 el3_get_link(struct net_device *dev)
1337 struct el3_private *lp = netdev_priv(dev);
1340 spin_lock_irq(&lp->lock);
1341 ret = el3_link_ok(dev);
1342 spin_unlock_irq(&lp->lock);
1346 static u32 el3_get_msglevel(struct net_device *dev)
1351 static void el3_set_msglevel(struct net_device *dev, u32 v)
1356 static struct ethtool_ops ethtool_ops = {
1357 .get_drvinfo = el3_get_drvinfo,
1358 .get_settings = el3_get_settings,
1359 .set_settings = el3_set_settings,
1360 .get_link = el3_get_link,
1361 .get_msglevel = el3_get_msglevel,
1362 .set_msglevel = el3_set_msglevel,
1366 el3_down(struct net_device *dev)
1368 int ioaddr = dev->base_addr;
1370 netif_stop_queue(dev);
1372 /* Turn off statistics ASAP. We update lp->stats below. */
1373 outw(StatsDisable, ioaddr + EL3_CMD);
1375 /* Disable the receiver and transmitter. */
1376 outw(RxDisable, ioaddr + EL3_CMD);
1377 outw(TxDisable, ioaddr + EL3_CMD);
1379 if (dev->if_port == 3)
1380 /* Turn off thinnet power. Green! */
1381 outw(StopCoax, ioaddr + EL3_CMD);
1382 else if (dev->if_port == 0) {
1383 /* Disable link beat and jabber, if_port may change here next open(). */
1385 outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
1388 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1394 el3_up(struct net_device *dev)
1396 int i, sw_info, net_diag;
1397 int ioaddr = dev->base_addr;
1399 /* Activating the board required and does no harm otherwise */
1400 outw(0x0001, ioaddr + 4);
1402 /* Set the IRQ line. */
1403 outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
1405 /* Set the station address in window 2 each time opened. */
1408 for (i = 0; i < 6; i++)
1409 outb(dev->dev_addr[i], ioaddr + i);
1411 if ((dev->if_port & 0x03) == 3) /* BNC interface */
1412 /* Start the thinnet transceiver. We should really wait 50ms...*/
1413 outw(StartCoax, ioaddr + EL3_CMD);
1414 else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */
1415 /* Combine secondary sw_info word (the adapter level) and primary
1416 sw_info word (duplex setting plus other useless bits) */
1418 sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) |
1419 (read_eeprom(ioaddr, 0x0d) & 0xBff0);
1422 net_diag = inw(ioaddr + WN4_NETDIAG);
1423 net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */
1424 printk("%s: ", dev->name);
1425 switch (dev->if_port & 0x0c) {
1427 /* force full-duplex mode if 3c5x9b */
1428 if (sw_info & 0x000f) {
1429 printk("Forcing 3c5x9b full-duplex mode");
1433 /* set full-duplex mode based on eeprom config setting */
1434 if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
1435 printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
1439 /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
1440 printk("Setting 3c5x9/3c5x9B half-duplex mode");
1441 net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */
1444 outw(net_diag, ioaddr + WN4_NETDIAG);
1445 printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info);
1447 printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag);
1448 /* Enable link beat and jabber check. */
1449 outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
1452 /* Switch to the stats window, and clear all stats by reading. */
1453 outw(StatsDisable, ioaddr + EL3_CMD);
1455 for (i = 0; i < 9; i++)
1460 /* Switch to register set 1 for normal use. */
1463 /* Accept b-case and phys addr only. */
1464 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1465 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
1467 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1468 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
1469 /* Allow status bits to be seen. */
1470 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
1471 /* Ack all pending events, and set active indicator mask. */
1472 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
1474 outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
1477 netif_start_queue(dev);
1480 /* Power Management support functions */
1484 el3_suspend(struct pm_dev *pdev)
1486 unsigned long flags;
1487 struct net_device *dev;
1488 struct el3_private *lp;
1491 if (!pdev && !pdev->data)
1494 dev = (struct net_device *)pdev->data;
1495 lp = netdev_priv(dev);
1496 ioaddr = dev->base_addr;
1498 spin_lock_irqsave(&lp->lock, flags);
1500 if (netif_running(dev))
1501 netif_device_detach(dev);
1504 outw(PowerDown, ioaddr + EL3_CMD);
1506 spin_unlock_irqrestore(&lp->lock, flags);
1511 el3_resume(struct pm_dev *pdev)
1513 unsigned long flags;
1514 struct net_device *dev;
1515 struct el3_private *lp;
1518 if (!pdev && !pdev->data)
1521 dev = (struct net_device *)pdev->data;
1522 lp = netdev_priv(dev);
1523 ioaddr = dev->base_addr;
1525 spin_lock_irqsave(&lp->lock, flags);
1527 outw(PowerUp, ioaddr + EL3_CMD);
1530 if (netif_running(dev))
1531 netif_device_attach(dev);
1533 spin_unlock_irqrestore(&lp->lock, flags);
1538 el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data)
1542 return el3_suspend(pdev);
1545 return el3_resume(pdev);
1550 #endif /* CONFIG_PM */
1552 /* Parameters that may be passed into the module. */
1553 static int debug = -1;
1554 static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
1555 static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
1557 module_param(debug,int, 0);
1558 module_param_array(irq, int, NULL, 0);
1559 module_param_array(xcvr, int, NULL, 0);
1560 module_param(max_interrupt_work, int, 0);
1561 MODULE_PARM_DESC(debug, "debug level (0-6)");
1562 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
1563 MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)");
1564 MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
1565 #if defined(__ISAPNP__)
1566 module_param(nopnp, int, 0);
1567 MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
1568 MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
1569 #endif /* __ISAPNP__ */
1570 MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver");
1571 MODULE_LICENSE("GPL");
1573 static int __init el3_init_module(void)
1580 el3_root_dev = NULL;
1581 while (el3_probe(el3_cards) == 0) {
1582 if (irq[el3_cards] > 1)
1583 el3_root_dev->irq = irq[el3_cards];
1584 if (xcvr[el3_cards] >= 0)
1585 el3_root_dev->if_port = xcvr[el3_cards];
1590 if (eisa_driver_register (&el3_eisa_driver) < 0) {
1591 eisa_driver_unregister (&el3_eisa_driver);
1595 mca_register_driver(&el3_mca_driver);
1600 static void __exit el3_cleanup_module(void)
1602 struct net_device *next_dev;
1604 while (el3_root_dev) {
1605 struct el3_private *lp = netdev_priv(el3_root_dev);
1607 next_dev = lp->next_dev;
1608 el3_common_remove (el3_root_dev);
1609 el3_root_dev = next_dev;
1613 eisa_driver_unregister (&el3_eisa_driver);
1616 mca_unregister_driver(&el3_mca_driver);
1620 module_init (el3_init_module);
1621 module_exit (el3_cleanup_module);