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[] = {
224 static int el3_eisa_probe (struct device *device);
226 static struct eisa_driver el3_eisa_driver = {
227 .id_table = el3_eisa_ids,
230 .probe = el3_eisa_probe,
231 .remove = __devexit_p (el3_device_remove)
237 static int el3_mca_probe(struct device *dev);
239 static short el3_mca_adapter_ids[] __initdata = {
248 static char *el3_mca_adapter_names[] __initdata = {
249 "3Com 3c529 EtherLink III (10base2)",
250 "3Com 3c529 EtherLink III (10baseT)",
251 "3Com 3c529 EtherLink III (test mode)",
252 "3Com 3c529 EtherLink III (TP or coax)",
253 "3Com 3c529 EtherLink III (TP)",
257 static struct mca_driver el3_mca_driver = {
258 .id_table = el3_mca_adapter_ids,
261 .bus = &mca_bus_type,
262 .probe = el3_mca_probe,
263 .remove = __devexit_p(el3_device_remove),
266 #endif /* CONFIG_MCA */
268 #if defined(__ISAPNP__)
269 static struct isapnp_device_id el3_isapnp_adapters[] __initdata = {
270 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
271 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5090),
272 (long) "3Com Etherlink III (TP)" },
273 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
274 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5091),
275 (long) "3Com Etherlink III" },
276 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
277 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5094),
278 (long) "3Com Etherlink III (combo)" },
279 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
280 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5095),
281 (long) "3Com Etherlink III (TPO)" },
282 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
283 ISAPNP_VENDOR('T', 'C', 'M'), ISAPNP_FUNCTION(0x5098),
284 (long) "3Com Etherlink III (TPC)" },
285 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
286 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f7),
287 (long) "3Com Etherlink III compatible" },
288 { ISAPNP_ANY_ID, ISAPNP_ANY_ID,
289 ISAPNP_VENDOR('P', 'N', 'P'), ISAPNP_FUNCTION(0x80f8),
290 (long) "3Com Etherlink III compatible" },
291 { } /* terminate list */
294 static u16 el3_isapnp_phys_addr[8][3];
296 #endif /* __ISAPNP__ */
298 /* With the driver model introduction for EISA devices, both init
299 * and cleanup have been split :
300 * - EISA devices probe/remove starts in el3_eisa_probe/el3_device_remove
301 * - MCA/ISA still use el3_probe
303 * Both call el3_common_init/el3_common_remove. */
305 static int __init el3_common_init(struct net_device *dev)
307 struct el3_private *lp = netdev_priv(dev);
311 spin_lock_init(&lp->lock);
313 if (dev->mem_start & 0x05) { /* xcvr codes 1/3/4/12 */
314 dev->if_port = (dev->mem_start & 0x0f);
315 } else { /* xcvr codes 0/8 */
316 /* use eeprom value, but save user's full-duplex selection */
317 dev->if_port |= (dev->mem_start & 0x08);
320 /* The EL3-specific entries in the device structure. */
321 dev->open = &el3_open;
322 dev->hard_start_xmit = &el3_start_xmit;
323 dev->stop = &el3_close;
324 dev->get_stats = &el3_get_stats;
325 dev->set_multicast_list = &set_multicast_list;
326 dev->tx_timeout = el3_tx_timeout;
327 dev->watchdog_timeo = TX_TIMEOUT;
328 #ifdef CONFIG_NET_POLL_CONTROLLER
329 dev->poll_controller = el3_poll_controller;
331 SET_ETHTOOL_OPS(dev, ðtool_ops);
333 err = register_netdev(dev);
335 printk(KERN_ERR "Failed to register 3c5x9 at %#3.3lx, IRQ %d.\n",
336 dev->base_addr, dev->irq);
337 release_region(dev->base_addr, EL3_IO_EXTENT);
342 const char *if_names[] = {"10baseT", "AUI", "undefined", "BNC"};
343 printk("%s: 3c5x9 found at %#3.3lx, %s port, address ",
344 dev->name, dev->base_addr,
345 if_names[(dev->if_port & 0x03)]);
348 /* Read in the station address. */
349 for (i = 0; i < 6; i++)
350 printk(" %2.2x", dev->dev_addr[i]);
351 printk(", IRQ %d.\n", dev->irq);
354 printk(KERN_INFO "%s" KERN_INFO "%s", versionA, versionB);
359 static void el3_common_remove (struct net_device *dev)
361 struct el3_private *lp = netdev_priv(dev);
363 (void) lp; /* Keep gcc quiet... */
366 pm_unregister(lp->pmdev);
368 #if defined(__ISAPNP__)
369 if (lp->type == EL3_PNP)
370 pnp_device_detach(to_pnp_dev(lp->dev));
373 unregister_netdev (dev);
374 release_region(dev->base_addr, EL3_IO_EXTENT);
378 static int __init el3_probe(int card_idx)
380 struct net_device *dev;
381 struct el3_private *lp;
382 short lrs_state = 0xff, i;
383 int ioaddr, irq, if_port;
385 static int current_tag;
387 #if defined(__ISAPNP__)
388 static int pnp_cards;
389 struct pnp_dev *idev = NULL;
394 for (i=0; el3_isapnp_adapters[i].vendor != 0; i++) {
396 while ((idev = pnp_find_dev(NULL,
397 el3_isapnp_adapters[i].vendor,
398 el3_isapnp_adapters[i].function,
400 if (pnp_device_attach(idev) < 0)
402 if (pnp_activate_dev(idev) < 0) {
404 pnp_device_detach(idev);
407 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
409 ioaddr = pnp_port_start(idev, 0);
410 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509 PnP")) {
411 pnp_device_detach(idev);
414 irq = pnp_irq(idev, 0);
416 printk ("ISAPnP reports %s at i/o 0x%x, irq %d\n",
417 (char*) el3_isapnp_adapters[i].driver_data, ioaddr, irq);
419 for (j = 0; j < 3; j++)
420 el3_isapnp_phys_addr[pnp_cards][j] =
422 htons(read_eeprom(ioaddr, j));
423 if_port = read_eeprom(ioaddr, 8) >> 14;
424 dev = alloc_etherdev(sizeof (struct el3_private));
426 release_region(ioaddr, EL3_IO_EXTENT);
427 pnp_device_detach(idev);
431 SET_MODULE_OWNER(dev);
432 SET_NETDEV_DEV(dev, &idev->dev);
435 netdev_boot_setup_check(dev);
440 #endif /* __ISAPNP__ */
442 /* Select an open I/O location at 0x1*0 to do contention select. */
443 for ( ; id_port < 0x200; id_port += 0x10) {
444 if (!request_region(id_port, 1, "3c509"))
448 if (inb(id_port) & 0x01){
449 release_region(id_port, 1);
452 release_region(id_port, 1);
454 if (id_port >= 0x200) {
455 /* Rare -- do we really need a warning? */
456 printk(" WARNING: No I/O port available for 3c509 activation.\n");
460 /* Next check for all ISA bus boards by sending the ID sequence to the
461 ID_PORT. We find cards past the first by setting the 'current_tag'
462 on cards as they are found. Cards with their tag set will not
463 respond to subsequent ID sequences. */
467 for(i = 0; i < 255; i++) {
468 outb(lrs_state, id_port);
470 lrs_state = lrs_state & 0x100 ? lrs_state ^ 0xcf : lrs_state;
473 /* For the first probe, clear all board's tag registers. */
474 if (current_tag == 0)
476 else /* Otherwise kill off already-found boards. */
479 if (id_read_eeprom(7) != 0x6d50) {
483 /* Read in EEPROM data, which does contention-select.
484 Only the lowest address board will stay "on-line".
485 3Com got the byte order backwards. */
486 for (i = 0; i < 3; i++) {
487 phys_addr[i] = htons(id_read_eeprom(i));
490 #if defined(__ISAPNP__)
492 /* The ISA PnP 3c509 cards respond to the ID sequence.
493 This check is needed in order not to register them twice. */
494 for (i = 0; i < pnp_cards; i++) {
495 if (phys_addr[0] == el3_isapnp_phys_addr[i][0] &&
496 phys_addr[1] == el3_isapnp_phys_addr[i][1] &&
497 phys_addr[2] == el3_isapnp_phys_addr[i][2])
500 printk("3c509 with address %02x %02x %02x %02x %02x %02x was found by ISAPnP\n",
501 phys_addr[0] & 0xff, phys_addr[0] >> 8,
502 phys_addr[1] & 0xff, phys_addr[1] >> 8,
503 phys_addr[2] & 0xff, phys_addr[2] >> 8);
504 /* Set the adaptor tag so that the next card can be found. */
505 outb(0xd0 + ++current_tag, id_port);
510 #endif /* __ISAPNP__ */
513 unsigned int iobase = id_read_eeprom(8);
514 if_port = iobase >> 14;
515 ioaddr = 0x200 + ((iobase & 0x1f) << 4);
517 irq = id_read_eeprom(9) >> 12;
519 dev = alloc_etherdev(sizeof (struct el3_private));
523 SET_MODULE_OWNER(dev);
525 netdev_boot_setup_check(dev);
527 /* Set passed-in IRQ or I/O Addr. */
528 if (dev->irq > 1 && dev->irq < 16)
531 if (dev->base_addr) {
532 if (dev->mem_end == 0x3c509 /* Magic key */
533 && dev->base_addr >= 0x200 && dev->base_addr <= 0x3e0)
534 ioaddr = dev->base_addr & 0x3f0;
535 else if (dev->base_addr != ioaddr)
539 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509")) {
544 /* Set the adaptor tag so that the next card can be found. */
545 outb(0xd0 + ++current_tag, id_port);
547 /* Activate the adaptor at the EEPROM location. */
548 outb((ioaddr >> 4) | 0xe0, id_port);
551 if (inw(ioaddr) != 0x6d50)
554 /* Free the interrupt so that some other card can use it. */
555 outw(0x0f00, ioaddr + WN0_IRQ);
557 #if defined(__ISAPNP__)
558 found: /* PNP jumps here... */
559 #endif /* __ISAPNP__ */
561 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
562 dev->base_addr = ioaddr;
564 dev->if_port = if_port;
565 lp = netdev_priv(dev);
566 #if defined(__ISAPNP__)
567 lp->dev = &idev->dev;
569 err = el3_common_init(dev);
575 /* register power management */
576 lp->pmdev = pm_register(PM_ISA_DEV, card_idx, el3_pm_callback);
580 p->data = (struct net_device *)dev;
585 lp->next_dev = el3_root_dev;
590 #if defined(__ISAPNP__)
592 pnp_device_detach(idev);
600 static int __init el3_mca_probe(struct device *device)
602 /* Based on Erik Nygren's (nygren@mit.edu) 3c529 patch,
603 * heavily modified by Chris Beauregard
604 * (cpbeaure@csclub.uwaterloo.ca) to support standard MCA
607 * redone for multi-card detection by ZP Gu (zpg@castle.net)
608 * now works as a module */
610 struct el3_private *lp;
612 int ioaddr, irq, if_port;
614 struct net_device *dev = NULL;
616 struct mca_device *mdev = to_mca_device(device);
617 int slot = mdev->slot;
620 pos4 = mca_device_read_stored_pos(mdev, 4);
621 pos5 = mca_device_read_stored_pos(mdev, 5);
623 ioaddr = ((short)((pos4&0xfc)|0x02)) << 8;
627 printk("3c529: found %s at slot %d\n",
628 el3_mca_adapter_names[mdev->index], slot + 1);
631 strncpy(mdev->name, el3_mca_adapter_names[mdev->index],
633 mca_device_set_claim(mdev, 1);
635 if_port = pos4 & 0x03;
637 irq = mca_device_transform_irq(mdev, irq);
638 ioaddr = mca_device_transform_ioport(mdev, ioaddr);
640 printk("3c529: irq %d ioaddr 0x%x ifport %d\n", irq, ioaddr, if_port);
643 for (i = 0; i < 3; i++) {
644 phys_addr[i] = htons(read_eeprom(ioaddr, i));
647 dev = alloc_etherdev(sizeof (struct el3_private));
649 release_region(ioaddr, EL3_IO_EXTENT);
653 SET_MODULE_OWNER(dev);
654 netdev_boot_setup_check(dev);
656 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
657 dev->base_addr = ioaddr;
659 dev->if_port = if_port;
660 lp = netdev_priv(dev);
663 device->driver_data = dev;
664 err = el3_common_init(dev);
667 device->driver_data = NULL;
676 #endif /* CONFIG_MCA */
679 static int __init el3_eisa_probe (struct device *device)
681 struct el3_private *lp;
683 int ioaddr, irq, if_port;
685 struct net_device *dev = NULL;
686 struct eisa_device *edev;
689 /* Yeepee, The driver framework is calling us ! */
690 edev = to_eisa_device (device);
691 ioaddr = edev->base_addr;
693 if (!request_region(ioaddr, EL3_IO_EXTENT, "3c509"))
696 /* Change the register set to the configuration window 0. */
697 outw(SelectWindow | 0, ioaddr + 0xC80 + EL3_CMD);
699 irq = inw(ioaddr + WN0_IRQ) >> 12;
700 if_port = inw(ioaddr + 6)>>14;
701 for (i = 0; i < 3; i++)
702 phys_addr[i] = htons(read_eeprom(ioaddr, i));
704 /* Restore the "Product ID" to the EEPROM read register. */
705 read_eeprom(ioaddr, 3);
707 dev = alloc_etherdev(sizeof (struct el3_private));
709 release_region(ioaddr, EL3_IO_EXTENT);
713 SET_MODULE_OWNER(dev);
715 netdev_boot_setup_check(dev);
717 memcpy(dev->dev_addr, phys_addr, sizeof(phys_addr));
718 dev->base_addr = ioaddr;
720 dev->if_port = if_port;
721 lp = netdev_priv(dev);
724 eisa_set_drvdata (edev, dev);
725 err = el3_common_init(dev);
728 eisa_set_drvdata (edev, NULL);
738 #if defined(CONFIG_EISA) || defined(CONFIG_MCA)
739 /* This remove works for all device types.
741 * The net dev must be stored in the driver_data field */
742 static int __devexit el3_device_remove (struct device *device)
744 struct net_device *dev;
746 dev = device->driver_data;
748 el3_common_remove (dev);
753 /* Read a word from the EEPROM using the regular EEPROM access register.
754 Assume that we are in register window zero.
756 static ushort read_eeprom(int ioaddr, int index)
758 outw(EEPROM_READ + index, ioaddr + 10);
759 /* Pause for at least 162 us. for the read to take place.
760 Some chips seem to require much longer */
762 return inw(ioaddr + 12);
765 /* Read a word from the EEPROM when in the ISA ID probe state. */
766 static ushort __init id_read_eeprom(int index)
770 /* Issue read command, and pause for at least 162 us. for it to complete.
771 Assume extra-fast 16Mhz bus. */
772 outb(EEPROM_READ + index, id_port);
774 /* Pause for at least 162 us. for the read to take place. */
775 /* Some chips seem to require much longer */
778 for (bit = 15; bit >= 0; bit--)
779 word = (word << 1) + (inb(id_port) & 0x01);
782 printk(" 3c509 EEPROM word %d %#4.4x.\n", index, word);
789 el3_open(struct net_device *dev)
791 int ioaddr = dev->base_addr;
794 outw(TxReset, ioaddr + EL3_CMD);
795 outw(RxReset, ioaddr + EL3_CMD);
796 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
798 i = request_irq(dev->irq, &el3_interrupt, 0, dev->name, dev);
804 printk("%s: Opening, IRQ %d status@%x %4.4x.\n", dev->name,
805 dev->irq, ioaddr + EL3_STATUS, inw(ioaddr + EL3_STATUS));
810 printk("%s: Opened 3c509 IRQ %d status %4.4x.\n",
811 dev->name, dev->irq, inw(ioaddr + EL3_STATUS));
817 el3_tx_timeout (struct net_device *dev)
819 struct el3_private *lp = netdev_priv(dev);
820 int ioaddr = dev->base_addr;
822 /* Transmitter timeout, serious problems. */
823 printk("%s: transmit timed out, Tx_status %2.2x status %4.4x "
824 "Tx FIFO room %d.\n",
825 dev->name, inb(ioaddr + TX_STATUS), inw(ioaddr + EL3_STATUS),
826 inw(ioaddr + TX_FREE));
827 lp->stats.tx_errors++;
828 dev->trans_start = jiffies;
829 /* Issue TX_RESET and TX_START commands. */
830 outw(TxReset, ioaddr + EL3_CMD);
831 outw(TxEnable, ioaddr + EL3_CMD);
832 netif_wake_queue(dev);
837 el3_start_xmit(struct sk_buff *skb, struct net_device *dev)
839 struct el3_private *lp = netdev_priv(dev);
840 int ioaddr = dev->base_addr;
843 netif_stop_queue (dev);
845 lp->stats.tx_bytes += skb->len;
848 printk("%s: el3_start_xmit(length = %u) called, status %4.4x.\n",
849 dev->name, skb->len, inw(ioaddr + EL3_STATUS));
852 #ifndef final_version
853 { /* Error-checking code, delete someday. */
854 ushort status = inw(ioaddr + EL3_STATUS);
855 if (status & 0x0001 /* IRQ line active, missed one. */
856 && inw(ioaddr + EL3_STATUS) & 1) { /* Make sure. */
857 printk("%s: Missed interrupt, status then %04x now %04x"
858 " Tx %2.2x Rx %4.4x.\n", dev->name, status,
859 inw(ioaddr + EL3_STATUS), inb(ioaddr + TX_STATUS),
860 inw(ioaddr + RX_STATUS));
861 /* Fake interrupt trigger by masking, acknowledge interrupts. */
862 outw(SetStatusEnb | 0x00, ioaddr + EL3_CMD);
863 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
865 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
871 * We lock the driver against other processors. Note
872 * we don't need to lock versus the IRQ as we suspended
873 * that. This means that we lose the ability to take
874 * an RX during a TX upload. That sucks a bit with SMP
875 * on an original 3c509 (2K buffer)
877 * Using disable_irq stops us crapping on other
878 * time sensitive devices.
881 spin_lock_irqsave(&lp->lock, flags);
883 /* Put out the doubleword header... */
884 outw(skb->len, ioaddr + TX_FIFO);
885 outw(0x00, ioaddr + TX_FIFO);
886 /* ... and the packet rounded to a doubleword. */
888 outsl_ns(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
890 outsl(ioaddr + TX_FIFO, skb->data, (skb->len + 3) >> 2);
893 dev->trans_start = jiffies;
894 if (inw(ioaddr + TX_FREE) > 1536)
895 netif_start_queue(dev);
897 /* Interrupt us when the FIFO has room for max-sized packet. */
898 outw(SetTxThreshold + 1536, ioaddr + EL3_CMD);
900 spin_unlock_irqrestore(&lp->lock, flags);
904 /* Clear the Tx status stack. */
909 while (--i > 0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
910 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
911 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
912 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
913 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
919 /* The EL3 interrupt handler. */
921 el3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
923 struct net_device *dev = (struct net_device *)dev_id;
924 struct el3_private *lp;
926 int i = max_interrupt_work;
929 printk ("el3_interrupt(): irq %d for unknown device.\n", irq);
933 lp = netdev_priv(dev);
934 spin_lock(&lp->lock);
936 ioaddr = dev->base_addr;
939 status = inw(ioaddr + EL3_STATUS);
940 printk("%s: interrupt, status %4.4x.\n", dev->name, status);
943 while ((status = inw(ioaddr + EL3_STATUS)) &
944 (IntLatch | RxComplete | StatsFull)) {
946 if (status & RxComplete)
949 if (status & TxAvailable) {
951 printk(" TX room bit was handled.\n");
952 /* There's room in the FIFO for a full-sized packet. */
953 outw(AckIntr | TxAvailable, ioaddr + EL3_CMD);
954 netif_wake_queue (dev);
956 if (status & (AdapterFailure | RxEarly | StatsFull | TxComplete)) {
957 /* Handle all uncommon interrupts. */
958 if (status & StatsFull) /* Empty statistics. */
960 if (status & RxEarly) { /* Rx early is unused. */
962 outw(AckIntr | RxEarly, ioaddr + EL3_CMD);
964 if (status & TxComplete) { /* Really Tx error. */
965 struct el3_private *lp = netdev_priv(dev);
969 while (--i>0 && (tx_status = inb(ioaddr + TX_STATUS)) > 0) {
970 if (tx_status & 0x38) lp->stats.tx_aborted_errors++;
971 if (tx_status & 0x30) outw(TxReset, ioaddr + EL3_CMD);
972 if (tx_status & 0x3C) outw(TxEnable, ioaddr + EL3_CMD);
973 outb(0x00, ioaddr + TX_STATUS); /* Pop the status stack. */
976 if (status & AdapterFailure) {
977 /* Adapter failure requires Rx reset and reinit. */
978 outw(RxReset, ioaddr + EL3_CMD);
979 /* Set the Rx filter to the current state. */
980 outw(SetRxFilter | RxStation | RxBroadcast
981 | (dev->flags & IFF_ALLMULTI ? RxMulticast : 0)
982 | (dev->flags & IFF_PROMISC ? RxProm : 0),
984 outw(RxEnable, ioaddr + EL3_CMD); /* Re-enable the receiver. */
985 outw(AckIntr | AdapterFailure, ioaddr + EL3_CMD);
990 printk("%s: Infinite loop in interrupt, status %4.4x.\n",
992 /* Clear all interrupts. */
993 outw(AckIntr | 0xFF, ioaddr + EL3_CMD);
996 /* Acknowledge the IRQ. */
997 outw(AckIntr | IntReq | IntLatch, ioaddr + EL3_CMD); /* Ack IRQ */
1000 if (el3_debug > 4) {
1001 printk("%s: exiting interrupt, status %4.4x.\n", dev->name,
1002 inw(ioaddr + EL3_STATUS));
1004 spin_unlock(&lp->lock);
1009 #ifdef CONFIG_NET_POLL_CONTROLLER
1011 * Polling receive - used by netconsole and other diagnostic tools
1012 * to allow network i/o with interrupts disabled.
1014 static void el3_poll_controller(struct net_device *dev)
1016 disable_irq(dev->irq);
1017 el3_interrupt(dev->irq, dev, NULL);
1018 enable_irq(dev->irq);
1022 static struct net_device_stats *
1023 el3_get_stats(struct net_device *dev)
1025 struct el3_private *lp = netdev_priv(dev);
1026 unsigned long flags;
1029 * This is fast enough not to bother with disable IRQ
1033 spin_lock_irqsave(&lp->lock, flags);
1035 spin_unlock_irqrestore(&lp->lock, flags);
1039 /* Update statistics. We change to register window 6, so this should be run
1040 single-threaded if the device is active. This is expected to be a rare
1041 operation, and it's simpler for the rest of the driver to assume that
1042 window 1 is always valid rather than use a special window-state variable.
1044 static void update_stats(struct net_device *dev)
1046 struct el3_private *lp = netdev_priv(dev);
1047 int ioaddr = dev->base_addr;
1050 printk(" Updating the statistics.\n");
1051 /* Turn off statistics updates while reading. */
1052 outw(StatsDisable, ioaddr + EL3_CMD);
1053 /* Switch to the stats window, and read everything. */
1055 lp->stats.tx_carrier_errors += inb(ioaddr + 0);
1056 lp->stats.tx_heartbeat_errors += inb(ioaddr + 1);
1057 /* Multiple collisions. */ inb(ioaddr + 2);
1058 lp->stats.collisions += inb(ioaddr + 3);
1059 lp->stats.tx_window_errors += inb(ioaddr + 4);
1060 lp->stats.rx_fifo_errors += inb(ioaddr + 5);
1061 lp->stats.tx_packets += inb(ioaddr + 6);
1062 /* Rx packets */ inb(ioaddr + 7);
1063 /* Tx deferrals */ inb(ioaddr + 8);
1064 inw(ioaddr + 10); /* Total Rx and Tx octets. */
1067 /* Back to window 1, and turn statistics back on. */
1069 outw(StatsEnable, ioaddr + EL3_CMD);
1074 el3_rx(struct net_device *dev)
1076 struct el3_private *lp = netdev_priv(dev);
1077 int ioaddr = dev->base_addr;
1081 printk(" In rx_packet(), status %4.4x, rx_status %4.4x.\n",
1082 inw(ioaddr+EL3_STATUS), inw(ioaddr+RX_STATUS));
1083 while ((rx_status = inw(ioaddr + RX_STATUS)) > 0) {
1084 if (rx_status & 0x4000) { /* Error, update stats. */
1085 short error = rx_status & 0x3800;
1087 outw(RxDiscard, ioaddr + EL3_CMD);
1088 lp->stats.rx_errors++;
1090 case 0x0000: lp->stats.rx_over_errors++; break;
1091 case 0x0800: lp->stats.rx_length_errors++; break;
1092 case 0x1000: lp->stats.rx_frame_errors++; break;
1093 case 0x1800: lp->stats.rx_length_errors++; break;
1094 case 0x2000: lp->stats.rx_frame_errors++; break;
1095 case 0x2800: lp->stats.rx_crc_errors++; break;
1098 short pkt_len = rx_status & 0x7ff;
1099 struct sk_buff *skb;
1101 skb = dev_alloc_skb(pkt_len+5);
1102 lp->stats.rx_bytes += pkt_len;
1104 printk("Receiving packet size %d status %4.4x.\n",
1105 pkt_len, rx_status);
1108 skb_reserve(skb, 2); /* Align IP on 16 byte */
1110 /* 'skb->data' points to the start of sk_buff data area. */
1112 insl_ns(ioaddr+RX_FIFO, skb_put(skb,pkt_len),
1113 (pkt_len + 3) >> 2);
1115 insl(ioaddr + RX_FIFO, skb_put(skb,pkt_len),
1116 (pkt_len + 3) >> 2);
1119 outw(RxDiscard, ioaddr + EL3_CMD); /* Pop top Rx packet. */
1120 skb->protocol = eth_type_trans(skb,dev);
1122 dev->last_rx = jiffies;
1123 lp->stats.rx_packets++;
1126 outw(RxDiscard, ioaddr + EL3_CMD);
1127 lp->stats.rx_dropped++;
1129 printk("%s: Couldn't allocate a sk_buff of size %d.\n",
1130 dev->name, pkt_len);
1132 inw(ioaddr + EL3_STATUS); /* Delay. */
1133 while (inw(ioaddr + EL3_STATUS) & 0x1000)
1134 printk(KERN_DEBUG " Waiting for 3c509 to discard packet, status %x.\n",
1135 inw(ioaddr + EL3_STATUS) );
1142 * Set or clear the multicast filter for this adaptor.
1145 set_multicast_list(struct net_device *dev)
1147 unsigned long flags;
1148 struct el3_private *lp = netdev_priv(dev);
1149 int ioaddr = dev->base_addr;
1151 if (el3_debug > 1) {
1153 if (old != dev->mc_count) {
1154 old = dev->mc_count;
1155 printk("%s: Setting Rx mode to %d addresses.\n", dev->name, dev->mc_count);
1158 spin_lock_irqsave(&lp->lock, flags);
1159 if (dev->flags&IFF_PROMISC) {
1160 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast | RxProm,
1163 else if (dev->mc_count || (dev->flags&IFF_ALLMULTI)) {
1164 outw(SetRxFilter | RxStation | RxMulticast | RxBroadcast, ioaddr + EL3_CMD);
1167 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1168 spin_unlock_irqrestore(&lp->lock, flags);
1172 el3_close(struct net_device *dev)
1174 int ioaddr = dev->base_addr;
1175 struct el3_private *lp = netdev_priv(dev);
1178 printk("%s: Shutting down ethercard.\n", dev->name);
1182 free_irq(dev->irq, dev);
1183 /* Switching back to window 0 disables the IRQ. */
1185 if (lp->type != EL3_EISA) {
1186 /* But we explicitly zero the IRQ line select anyway. Don't do
1187 * it on EISA cards, it prevents the module from getting an
1188 * IRQ after unload+reload... */
1189 outw(0x0f00, ioaddr + WN0_IRQ);
1196 el3_link_ok(struct net_device *dev)
1198 int ioaddr = dev->base_addr;
1202 tmp = inw(ioaddr + WN4_MEDIA);
1204 return tmp & (1<<11);
1208 el3_netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1211 int ioaddr = dev->base_addr;
1214 /* obtain current transceiver via WN4_MEDIA? */
1215 tmp = inw(ioaddr + WN0_ADDR_CONF);
1216 ecmd->transceiver = XCVR_INTERNAL;
1217 switch (tmp >> 14) {
1219 ecmd->port = PORT_TP;
1222 ecmd->port = PORT_AUI;
1223 ecmd->transceiver = XCVR_EXTERNAL;
1226 ecmd->port = PORT_BNC;
1231 ecmd->duplex = DUPLEX_HALF;
1232 ecmd->supported = 0;
1233 tmp = inw(ioaddr + WN0_CONF_CTRL);
1235 ecmd->supported |= SUPPORTED_AUI;
1237 ecmd->supported |= SUPPORTED_BNC;
1239 ecmd->supported |= SUPPORTED_TP | SUPPORTED_10baseT_Half |
1240 SUPPORTED_10baseT_Full; /* hmm... */
1242 tmp = inw(ioaddr + WN4_NETDIAG);
1243 if (tmp & FD_ENABLE)
1244 ecmd->duplex = DUPLEX_FULL;
1247 ecmd->speed = SPEED_10;
1253 el3_netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
1256 int ioaddr = dev->base_addr;
1258 if (ecmd->speed != SPEED_10)
1260 if ((ecmd->duplex != DUPLEX_HALF) && (ecmd->duplex != DUPLEX_FULL))
1262 if ((ecmd->transceiver != XCVR_INTERNAL) && (ecmd->transceiver != XCVR_EXTERNAL))
1265 /* change XCVR type */
1267 tmp = inw(ioaddr + WN0_ADDR_CONF);
1268 switch (ecmd->port) {
1285 outw(tmp, ioaddr + WN0_ADDR_CONF);
1286 if (dev->if_port == 3) {
1287 /* fire up the DC-DC convertor if BNC gets enabled */
1288 tmp = inw(ioaddr + WN0_ADDR_CONF);
1289 if (tmp & (3 << 14)) {
1290 outw(StartCoax, ioaddr + EL3_CMD);
1297 tmp = inw(ioaddr + WN4_NETDIAG);
1298 if (ecmd->duplex == DUPLEX_FULL)
1302 outw(tmp, ioaddr + WN4_NETDIAG);
1308 static void el3_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
1310 strcpy(info->driver, DRV_NAME);
1311 strcpy(info->version, DRV_VERSION);
1314 static int el3_get_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1316 struct el3_private *lp = netdev_priv(dev);
1319 spin_lock_irq(&lp->lock);
1320 ret = el3_netdev_get_ecmd(dev, ecmd);
1321 spin_unlock_irq(&lp->lock);
1325 static int el3_set_settings(struct net_device *dev, struct ethtool_cmd *ecmd)
1327 struct el3_private *lp = netdev_priv(dev);
1330 spin_lock_irq(&lp->lock);
1331 ret = el3_netdev_set_ecmd(dev, ecmd);
1332 spin_unlock_irq(&lp->lock);
1336 static u32 el3_get_link(struct net_device *dev)
1338 struct el3_private *lp = netdev_priv(dev);
1341 spin_lock_irq(&lp->lock);
1342 ret = el3_link_ok(dev);
1343 spin_unlock_irq(&lp->lock);
1347 static u32 el3_get_msglevel(struct net_device *dev)
1352 static void el3_set_msglevel(struct net_device *dev, u32 v)
1357 static struct ethtool_ops ethtool_ops = {
1358 .get_drvinfo = el3_get_drvinfo,
1359 .get_settings = el3_get_settings,
1360 .set_settings = el3_set_settings,
1361 .get_link = el3_get_link,
1362 .get_msglevel = el3_get_msglevel,
1363 .set_msglevel = el3_set_msglevel,
1367 el3_down(struct net_device *dev)
1369 int ioaddr = dev->base_addr;
1371 netif_stop_queue(dev);
1373 /* Turn off statistics ASAP. We update lp->stats below. */
1374 outw(StatsDisable, ioaddr + EL3_CMD);
1376 /* Disable the receiver and transmitter. */
1377 outw(RxDisable, ioaddr + EL3_CMD);
1378 outw(TxDisable, ioaddr + EL3_CMD);
1380 if (dev->if_port == 3)
1381 /* Turn off thinnet power. Green! */
1382 outw(StopCoax, ioaddr + EL3_CMD);
1383 else if (dev->if_port == 0) {
1384 /* Disable link beat and jabber, if_port may change here next open(). */
1386 outw(inw(ioaddr + WN4_MEDIA) & ~MEDIA_TP, ioaddr + WN4_MEDIA);
1389 outw(SetIntrEnb | 0x0000, ioaddr + EL3_CMD);
1395 el3_up(struct net_device *dev)
1397 int i, sw_info, net_diag;
1398 int ioaddr = dev->base_addr;
1400 /* Activating the board required and does no harm otherwise */
1401 outw(0x0001, ioaddr + 4);
1403 /* Set the IRQ line. */
1404 outw((dev->irq << 12) | 0x0f00, ioaddr + WN0_IRQ);
1406 /* Set the station address in window 2 each time opened. */
1409 for (i = 0; i < 6; i++)
1410 outb(dev->dev_addr[i], ioaddr + i);
1412 if ((dev->if_port & 0x03) == 3) /* BNC interface */
1413 /* Start the thinnet transceiver. We should really wait 50ms...*/
1414 outw(StartCoax, ioaddr + EL3_CMD);
1415 else if ((dev->if_port & 0x03) == 0) { /* 10baseT interface */
1416 /* Combine secondary sw_info word (the adapter level) and primary
1417 sw_info word (duplex setting plus other useless bits) */
1419 sw_info = (read_eeprom(ioaddr, 0x14) & 0x400f) |
1420 (read_eeprom(ioaddr, 0x0d) & 0xBff0);
1423 net_diag = inw(ioaddr + WN4_NETDIAG);
1424 net_diag = (net_diag | FD_ENABLE); /* temporarily assume full-duplex will be set */
1425 printk("%s: ", dev->name);
1426 switch (dev->if_port & 0x0c) {
1428 /* force full-duplex mode if 3c5x9b */
1429 if (sw_info & 0x000f) {
1430 printk("Forcing 3c5x9b full-duplex mode");
1434 /* set full-duplex mode based on eeprom config setting */
1435 if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
1436 printk("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
1440 /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
1441 printk("Setting 3c5x9/3c5x9B half-duplex mode");
1442 net_diag = (net_diag & ~FD_ENABLE); /* disable full duplex */
1445 outw(net_diag, ioaddr + WN4_NETDIAG);
1446 printk(" if_port: %d, sw_info: %4.4x\n", dev->if_port, sw_info);
1448 printk("%s: 3c5x9 net diag word is now: %4.4x.\n", dev->name, net_diag);
1449 /* Enable link beat and jabber check. */
1450 outw(inw(ioaddr + WN4_MEDIA) | MEDIA_TP, ioaddr + WN4_MEDIA);
1453 /* Switch to the stats window, and clear all stats by reading. */
1454 outw(StatsDisable, ioaddr + EL3_CMD);
1456 for (i = 0; i < 9; i++)
1461 /* Switch to register set 1 for normal use. */
1464 /* Accept b-case and phys addr only. */
1465 outw(SetRxFilter | RxStation | RxBroadcast, ioaddr + EL3_CMD);
1466 outw(StatsEnable, ioaddr + EL3_CMD); /* Turn on statistics. */
1468 outw(RxEnable, ioaddr + EL3_CMD); /* Enable the receiver. */
1469 outw(TxEnable, ioaddr + EL3_CMD); /* Enable transmitter. */
1470 /* Allow status bits to be seen. */
1471 outw(SetStatusEnb | 0xff, ioaddr + EL3_CMD);
1472 /* Ack all pending events, and set active indicator mask. */
1473 outw(AckIntr | IntLatch | TxAvailable | RxEarly | IntReq,
1475 outw(SetIntrEnb | IntLatch|TxAvailable|TxComplete|RxComplete|StatsFull,
1478 netif_start_queue(dev);
1481 /* Power Management support functions */
1485 el3_suspend(struct pm_dev *pdev)
1487 unsigned long flags;
1488 struct net_device *dev;
1489 struct el3_private *lp;
1492 if (!pdev && !pdev->data)
1495 dev = (struct net_device *)pdev->data;
1496 lp = netdev_priv(dev);
1497 ioaddr = dev->base_addr;
1499 spin_lock_irqsave(&lp->lock, flags);
1501 if (netif_running(dev))
1502 netif_device_detach(dev);
1505 outw(PowerDown, ioaddr + EL3_CMD);
1507 spin_unlock_irqrestore(&lp->lock, flags);
1512 el3_resume(struct pm_dev *pdev)
1514 unsigned long flags;
1515 struct net_device *dev;
1516 struct el3_private *lp;
1519 if (!pdev && !pdev->data)
1522 dev = (struct net_device *)pdev->data;
1523 lp = netdev_priv(dev);
1524 ioaddr = dev->base_addr;
1526 spin_lock_irqsave(&lp->lock, flags);
1528 outw(PowerUp, ioaddr + EL3_CMD);
1531 if (netif_running(dev))
1532 netif_device_attach(dev);
1534 spin_unlock_irqrestore(&lp->lock, flags);
1539 el3_pm_callback(struct pm_dev *pdev, pm_request_t rqst, void *data)
1543 return el3_suspend(pdev);
1546 return el3_resume(pdev);
1551 #endif /* CONFIG_PM */
1553 /* Parameters that may be passed into the module. */
1554 static int debug = -1;
1555 static int irq[] = {-1, -1, -1, -1, -1, -1, -1, -1};
1556 static int xcvr[] = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1};
1558 module_param(debug,int, 0);
1559 module_param_array(irq, int, NULL, 0);
1560 module_param_array(xcvr, int, NULL, 0);
1561 module_param(max_interrupt_work, int, 0);
1562 MODULE_PARM_DESC(debug, "debug level (0-6)");
1563 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
1564 MODULE_PARM_DESC(xcvr,"transceiver(s) (0=internal, 1=external)");
1565 MODULE_PARM_DESC(max_interrupt_work, "maximum events handled per interrupt");
1566 #if defined(__ISAPNP__)
1567 module_param(nopnp, int, 0);
1568 MODULE_PARM_DESC(nopnp, "disable ISA PnP support (0-1)");
1569 MODULE_DEVICE_TABLE(isapnp, el3_isapnp_adapters);
1570 #endif /* __ISAPNP__ */
1571 MODULE_DESCRIPTION("3Com Etherlink III (3c509, 3c509B) ISA/PnP ethernet driver");
1572 MODULE_LICENSE("GPL");
1574 static int __init el3_init_module(void)
1581 el3_root_dev = NULL;
1582 while (el3_probe(el3_cards) == 0) {
1583 if (irq[el3_cards] > 1)
1584 el3_root_dev->irq = irq[el3_cards];
1585 if (xcvr[el3_cards] >= 0)
1586 el3_root_dev->if_port = xcvr[el3_cards];
1591 if (eisa_driver_register (&el3_eisa_driver) < 0) {
1592 eisa_driver_unregister (&el3_eisa_driver);
1596 mca_register_driver(&el3_mca_driver);
1601 static void __exit el3_cleanup_module(void)
1603 struct net_device *next_dev;
1605 while (el3_root_dev) {
1606 struct el3_private *lp = netdev_priv(el3_root_dev);
1608 next_dev = lp->next_dev;
1609 el3_common_remove (el3_root_dev);
1610 el3_root_dev = next_dev;
1614 eisa_driver_unregister (&el3_eisa_driver);
1617 mca_unregister_driver(&el3_mca_driver);
1621 module_init (el3_init_module);
1622 module_exit (el3_cleanup_module);