blob: b3866089a206a48d4ad2900de16f80b754e07be0 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* smc-ultra.c: A SMC Ultra ethernet driver for linux. */
2/*
3 This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards.
4
5 Written 1993-1998 by Donald Becker.
6
7 Copyright 1993 United States Government as represented by the
8 Director, National Security Agency.
9
10 This software may be used and distributed according to the terms
11 of the GNU General Public License, incorporated herein by reference.
12
13 The author may be reached as becker@scyld.com, or C/O
14 Scyld Computing Corporation
15 410 Severn Ave., Suite 210
16 Annapolis MD 21403
17
18 This driver uses the cards in the 8390-compatible mode.
19 Most of the run-time complexity is handled by the generic code in
20 8390.c. The code in this file is responsible for
21
22 ultra_probe() Detecting and initializing the card.
23 ultra_probe1()
24 ultra_probe_isapnp()
25
26 ultra_open() The card-specific details of starting, stopping
27 ultra_reset_8390() and resetting the 8390 NIC core.
28 ultra_close()
29
30 ultra_block_input() Routines for reading and writing blocks of
31 ultra_block_output() packet buffer memory.
32 ultra_pio_input()
33 ultra_pio_output()
34
35 This driver enables the shared memory only when doing the actual data
36 transfers to avoid a bug in early version of the card that corrupted
37 data transferred by a AHA1542.
38
39 This driver now supports the programmed-I/O (PIO) data transfer mode of
40 the EtherEZ. It does not use the non-8390-compatible "Altego" mode.
41 That support (if available) is in smc-ez.c.
42
43 Changelog:
44
45 Paul Gortmaker : multiple card support for module users.
46 Donald Becker : 4/17/96 PIO support, minor potential problems avoided.
47 Donald Becker : 6/6/96 correctly set auto-wrap bit.
48 Alexander Sotirov : 1/20/01 Added support for ISAPnP cards
49
50 Note about the ISA PnP support:
51
52 This driver can not autoprobe for more than one SMC EtherEZ PnP card.
53 You have to configure the second card manually through the /proc/isapnp
54 interface and then load the module with an explicit io=0x___ option.
55*/
56
57static const char version[] =
58 "smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
59
Linus Torvalds1da177e2005-04-16 15:20:36 -070060#include <linux/module.h>
61#include <linux/kernel.h>
62#include <linux/errno.h>
63#include <linux/string.h>
64#include <linux/init.h>
65#include <linux/isapnp.h>
66#include <linux/netdevice.h>
67#include <linux/etherdevice.h>
68
69#include <asm/io.h>
Al Virobf4e70e2005-08-28 03:52:22 +010070#include <asm/irq.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070071#include <asm/system.h>
72
73#include "8390.h"
74
75#define DRV_NAME "smc-ultra"
76
77/* A zero-terminated list of I/O addresses to be probed. */
78static unsigned int ultra_portlist[] __initdata =
79{0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0};
80
81static int ultra_probe1(struct net_device *dev, int ioaddr);
82
83#ifdef __ISAPNP__
84static int ultra_probe_isapnp(struct net_device *dev);
85#endif
86
87static int ultra_open(struct net_device *dev);
88static void ultra_reset_8390(struct net_device *dev);
89static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
90 int ring_page);
91static void ultra_block_input(struct net_device *dev, int count,
92 struct sk_buff *skb, int ring_offset);
93static void ultra_block_output(struct net_device *dev, int count,
94 const unsigned char *buf, const int start_page);
95static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
96 int ring_page);
97static void ultra_pio_input(struct net_device *dev, int count,
98 struct sk_buff *skb, int ring_offset);
99static void ultra_pio_output(struct net_device *dev, int count,
100 const unsigned char *buf, const int start_page);
101static int ultra_close_card(struct net_device *dev);
102
103#ifdef __ISAPNP__
104static struct isapnp_device_id ultra_device_ids[] __initdata = {
105 { ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
106 ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
107 (long) "SMC EtherEZ (8416)" },
108 { } /* terminate list */
109};
110
111MODULE_DEVICE_TABLE(isapnp, ultra_device_ids);
112#endif
113
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115#define START_PG 0x00 /* First page of TX buffer */
116
117#define ULTRA_CMDREG 0 /* Offset to ASIC command register. */
118#define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */
119#define ULTRA_MEMENB 0x40 /* Enable the shared memory. */
120#define IOPD 0x02 /* I/O Pipe Data (16 bits), PIO operation. */
121#define IOPA 0x07 /* I/O Pipe Address for PIO operation. */
122#define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */
123#define ULTRA_IO_EXTENT 32
124#define EN0_ERWCNT 0x08 /* Early receive warning count. */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400125
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126#ifdef CONFIG_NET_POLL_CONTROLLER
127static void ultra_poll(struct net_device *dev)
128{
129 disable_irq(dev->irq);
David Howells7d12e782006-10-05 14:55:46 +0100130 ei_interrupt(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 enable_irq(dev->irq);
132}
133#endif
134/* Probe for the Ultra. This looks like a 8013 with the station
135 address PROM at I/O ports <base>+8 to <base>+13, with a checksum
136 following.
137*/
138
139static int __init do_ultra_probe(struct net_device *dev)
140{
141 int i;
142 int base_addr = dev->base_addr;
143 int irq = dev->irq;
144
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145#ifdef CONFIG_NET_POLL_CONTROLLER
146 dev->poll_controller = &ultra_poll;
147#endif
148 if (base_addr > 0x1ff) /* Check a single specified location. */
149 return ultra_probe1(dev, base_addr);
150 else if (base_addr != 0) /* Don't probe at all. */
151 return -ENXIO;
152
153#ifdef __ISAPNP__
154 /* Look for any installed ISAPnP cards */
155 if (isapnp_present() && (ultra_probe_isapnp(dev) == 0))
156 return 0;
157#endif
158
159 for (i = 0; ultra_portlist[i]; i++) {
160 dev->irq = irq;
161 if (ultra_probe1(dev, ultra_portlist[i]) == 0)
162 return 0;
163 }
164
165 return -ENODEV;
166}
167
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168#ifndef MODULE
169struct net_device * __init ultra_probe(int unit)
170{
171 struct net_device *dev = alloc_ei_netdev();
172 int err;
173
174 if (!dev)
175 return ERR_PTR(-ENOMEM);
176
177 sprintf(dev->name, "eth%d", unit);
178 netdev_boot_setup_check(dev);
179
180 err = do_ultra_probe(dev);
181 if (err)
182 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 return dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184out:
185 free_netdev(dev);
186 return ERR_PTR(err);
187}
188#endif
189
Stephen Hemmingerd0798412008-11-25 18:23:06 -0800190static const struct net_device_ops ultra_netdev_ops = {
191 .ndo_open = ultra_open,
192 .ndo_stop = ultra_close_card,
193
194 .ndo_start_xmit = ei_start_xmit,
195 .ndo_tx_timeout = ei_tx_timeout,
196 .ndo_get_stats = ei_get_stats,
197 .ndo_set_multicast_list = ei_set_multicast_list,
198 .ndo_validate_addr = eth_validate_addr,
199 .ndo_change_mtu = eth_change_mtu,
200#ifdef CONFIG_NET_POLL_CONTROLLER
201 .ndo_poll_controller = ei_poll,
202#endif
203};
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205static int __init ultra_probe1(struct net_device *dev, int ioaddr)
206{
207 int i, retval;
208 int checksum = 0;
209 const char *model_name;
210 unsigned char eeprom_irq = 0;
211 static unsigned version_printed;
212 /* Values from various config regs. */
213 unsigned char num_pages, irqreg, addr, piomode;
214 unsigned char idreg = inb(ioaddr + 7);
215 unsigned char reg4 = inb(ioaddr + 4) & 0x7f;
216
217 if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME))
218 return -EBUSY;
219
220 /* Check the ID nibble. */
221 if ((idreg & 0xF0) != 0x20 /* SMC Ultra */
222 && (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */
223 retval = -ENODEV;
224 goto out;
225 }
226
227 /* Select the station address register set. */
228 outb(reg4, ioaddr + 4);
229
230 for (i = 0; i < 8; i++)
231 checksum += inb(ioaddr + 8 + i);
232 if ((checksum & 0xff) != 0xFF) {
233 retval = -ENODEV;
234 goto out;
235 }
236
237 if (ei_debug && version_printed++ == 0)
238 printk(version);
239
240 model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 for (i = 0; i < 6; i++)
Joe Perches0795af52007-10-03 17:59:30 -0700243 dev->dev_addr[i] = inb(ioaddr + 8 + i);
244
Johannes Berge1749612008-10-27 15:59:26 -0700245 printk("%s: %s at %#3x, %pM", dev->name, model_name,
246 ioaddr, dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247
248 /* Switch from the station address to the alternate register set and
249 read the useful registers there. */
250 outb(0x80 | reg4, ioaddr + 4);
251
252 /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
253 outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
254 piomode = inb(ioaddr + 0x8);
255 addr = inb(ioaddr + 0xb);
256 irqreg = inb(ioaddr + 0xd);
257
258 /* Switch back to the station address register set so that the MS-DOS driver
259 can find the card after a warm boot. */
260 outb(reg4, ioaddr + 4);
261
262 if (dev->irq < 2) {
263 unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
264 int irq;
265
266 /* The IRQ bits are split. */
267 irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)];
268
269 if (irq == 0) {
270 printk(", failed to detect IRQ line.\n");
271 retval = -EAGAIN;
272 goto out;
273 }
274 dev->irq = irq;
275 eeprom_irq = 1;
276 }
277
278 /* The 8390 isn't at the base address, so fake the offset */
279 dev->base_addr = ioaddr+ULTRA_NIC_OFFSET;
280
281 {
282 int addr_tbl[4] = {0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000};
283 short num_pages_tbl[4] = {0x20, 0x40, 0x80, 0xff};
284
285 dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
286 num_pages = num_pages_tbl[(addr >> 4) & 3];
287 }
288
289 ei_status.name = model_name;
290 ei_status.word16 = 1;
291 ei_status.tx_start_page = START_PG;
292 ei_status.rx_start_page = START_PG + TX_PAGES;
293 ei_status.stop_page = num_pages;
294
295 ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256);
296 if (!ei_status.mem) {
297 printk(", failed to ioremap.\n");
298 retval = -ENOMEM;
299 goto out;
300 }
301
302 dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256;
303
304 if (piomode) {
305 printk(",%s IRQ %d programmed-I/O mode.\n",
306 eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
307 ei_status.block_input = &ultra_pio_input;
308 ei_status.block_output = &ultra_pio_output;
309 ei_status.get_8390_hdr = &ultra_pio_get_hdr;
310 } else {
311 printk(",%s IRQ %d memory %#lx-%#lx.\n", eeprom_irq ? "" : "assigned ",
312 dev->irq, dev->mem_start, dev->mem_end-1);
313 ei_status.block_input = &ultra_block_input;
314 ei_status.block_output = &ultra_block_output;
315 ei_status.get_8390_hdr = &ultra_get_8390_hdr;
316 }
317 ei_status.reset_8390 = &ultra_reset_8390;
Stephen Hemmingerd0798412008-11-25 18:23:06 -0800318
319 dev->netdev_ops = &ultra_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 NS8390_init(dev, 0);
321
b1fc5502005-05-12 20:11:55 -0400322 retval = register_netdev(dev);
323 if (retval)
324 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 return 0;
326out:
327 release_region(ioaddr, ULTRA_IO_EXTENT);
328 return retval;
329}
330
331#ifdef __ISAPNP__
332static int __init ultra_probe_isapnp(struct net_device *dev)
333{
334 int i;
335
336 for (i = 0; ultra_device_ids[i].vendor != 0; i++) {
337 struct pnp_dev *idev = NULL;
338
339 while ((idev = pnp_find_dev(NULL,
340 ultra_device_ids[i].vendor,
341 ultra_device_ids[i].function,
342 idev))) {
343 /* Avoid already found cards from previous calls */
344 if (pnp_device_attach(idev) < 0)
345 continue;
346 if (pnp_activate_dev(idev) < 0) {
347 __again:
348 pnp_device_detach(idev);
349 continue;
350 }
351 /* if no io and irq, search for next */
352 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
353 goto __again;
354 /* found it */
355 dev->base_addr = pnp_port_start(idev, 0);
356 dev->irq = pnp_irq(idev, 0);
357 printk(KERN_INFO "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
358 (char *) ultra_device_ids[i].driver_data,
359 dev->base_addr, dev->irq);
360 if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
361 printk(KERN_ERR "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr);
362 pnp_device_detach(idev);
363 return -ENXIO;
364 }
365 ei_status.priv = (unsigned long)idev;
366 break;
367 }
368 if (!idev)
369 continue;
370 return 0;
371 }
372
373 return -ENODEV;
374}
375#endif
376
377static int
378ultra_open(struct net_device *dev)
379{
380 int retval;
381 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
382 unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
383 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
384
385 retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
386 if (retval)
387 return retval;
388
389 outb(0x00, ioaddr); /* Disable shared memory for safety. */
390 outb(0x80, ioaddr + 5);
391 /* Set the IRQ line. */
392 outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
393 outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
394 outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
395
396 if (ei_status.block_input == &ultra_pio_input) {
397 outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */
398 outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */
399 } else
400 outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
401 /* Set the early receive warning level in window 0 high enough not
402 to receive ERW interrupts. */
403 outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
404 outb(0xff, dev->base_addr + EN0_ERWCNT);
405 ei_open(dev);
406 return 0;
407}
408
409static void
410ultra_reset_8390(struct net_device *dev)
411{
412 int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
413
414 outb(ULTRA_RESET, cmd_port);
415 if (ei_debug > 1) printk("resetting Ultra, t=%ld...", jiffies);
416 ei_status.txing = 0;
417
418 outb(0x00, cmd_port); /* Disable shared memory for safety. */
419 outb(0x80, cmd_port + 5);
420 if (ei_status.block_input == &ultra_pio_input)
421 outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */
422 else
423 outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */
424
425 if (ei_debug > 1) printk("reset done\n");
426 return;
427}
428
429/* Grab the 8390 specific header. Similar to the block_input routine, but
430 we don't need to be concerned with ring wrap as the header will be at
431 the start of a page, so we optimize accordingly. */
432
433static void
434ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
435{
436 void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8);
437
438 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */
439#ifdef __BIG_ENDIAN
440 /* Officially this is what we are doing, but the readl() is faster */
441 /* unfortunately it isn't endian aware of the struct */
442 memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
443 hdr->count = le16_to_cpu(hdr->count);
444#else
445 ((unsigned int*)hdr)[0] = readl(hdr_start);
446#endif
447 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
448}
449
450/* Block input and output are easy on shared memory ethercards, the only
451 complication is when the ring buffer wraps. */
452
453static void
454ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
455{
456 void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8);
457
458 /* Enable shared memory. */
459 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
460
461 if (ring_offset + count > ei_status.stop_page*256) {
462 /* We must wrap the input move. */
463 int semi_count = ei_status.stop_page*256 - ring_offset;
464 memcpy_fromio(skb->data, xfer_start, semi_count);
465 count -= semi_count;
466 memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
467 } else {
Al Viro4ec03112007-02-09 16:38:30 +0000468 memcpy_fromio(skb->data, xfer_start, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700469 }
470
471 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
472}
473
474static void
475ultra_block_output(struct net_device *dev, int count, const unsigned char *buf,
476 int start_page)
477{
478 void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8);
479
480 /* Enable shared memory. */
481 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
482
483 memcpy_toio(shmem, buf, count);
484
485 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
486}
487
488/* The identical operations for programmed I/O cards.
489 The PIO model is trivial to use: the 16 bit start address is written
490 byte-sequentially to IOPA, with no intervening I/O operations, and the
491 data is read or written to the IOPD data port.
492 The only potential complication is that the address register is shared
493 and must be always be rewritten between each read/write direction change.
494 This is no problem for us, as the 8390 code ensures that we are single
495 threaded. */
496static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
497 int ring_page)
498{
499 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
500 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
501 outb(ring_page, ioaddr + IOPA);
502 insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
503}
504
505static void ultra_pio_input(struct net_device *dev, int count,
506 struct sk_buff *skb, int ring_offset)
507{
508 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
509 char *buf = skb->data;
510
511 /* For now set the address again, although it should already be correct. */
512 outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */
513 outb(ring_offset >> 8, ioaddr + IOPA);
514 /* We know skbuffs are padded to at least word alignment. */
515 insw(ioaddr + IOPD, buf, (count+1)>>1);
516}
517
518static void ultra_pio_output(struct net_device *dev, int count,
519 const unsigned char *buf, const int start_page)
520{
521 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
522 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
523 outb(start_page, ioaddr + IOPA);
524 /* An extra odd byte is OK here as well. */
525 outsw(ioaddr + IOPD, buf, (count+1)>>1);
526}
527
528static int
529ultra_close_card(struct net_device *dev)
530{
531 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */
532
533 netif_stop_queue(dev);
534
535 if (ei_debug > 1)
536 printk("%s: Shutting down ethercard.\n", dev->name);
537
538 outb(0x00, ioaddr + 6); /* Disable interrupts. */
539 free_irq(dev->irq, dev);
540
541 NS8390_init(dev, 0);
542
543 /* We should someday disable shared memory and change to 8-bit mode
544 "just in case"... */
545
546 return 0;
547}
548
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400549
Linus Torvalds1da177e2005-04-16 15:20:36 -0700550#ifdef MODULE
551#define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */
552static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
553static int io[MAX_ULTRA_CARDS];
554static int irq[MAX_ULTRA_CARDS];
555
556module_param_array(io, int, NULL, 0);
557module_param_array(irq, int, NULL, 0);
558MODULE_PARM_DESC(io, "I/O base address(es)");
559MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
560MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver");
561MODULE_LICENSE("GPL");
562
563/* This is set up so that only a single autoprobe takes place per call.
564ISA device autoprobes on a running machine are not recommended. */
Randy Dunlapa2bd2ec2006-06-10 13:30:10 -0700565int __init
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566init_module(void)
567{
568 struct net_device *dev;
569 int this_dev, found = 0;
570
571 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
572 if (io[this_dev] == 0) {
573 if (this_dev != 0) break; /* only autoprobe 1st one */
574 printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
575 }
576 dev = alloc_ei_netdev();
577 if (!dev)
578 break;
579 dev->irq = irq[this_dev];
580 dev->base_addr = io[this_dev];
581 if (do_ultra_probe(dev) == 0) {
b1fc5502005-05-12 20:11:55 -0400582 dev_ultra[found++] = dev;
583 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700584 }
585 free_netdev(dev);
586 printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
587 break;
588 }
589 if (found)
590 return 0;
591 return -ENXIO;
592}
593
Denis Vlasenko64916f12006-01-05 22:45:47 -0800594static void cleanup_card(struct net_device *dev)
595{
596 /* NB: ultra_close_card() does free_irq */
597#ifdef __ISAPNP__
598 struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv;
599 if (idev)
600 pnp_device_detach(idev);
601#endif
602 release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT);
603 iounmap(ei_status.mem);
604}
605
Al Viroafc8eb42006-06-14 18:50:53 -0400606void __exit
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607cleanup_module(void)
608{
609 int this_dev;
610
611 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
612 struct net_device *dev = dev_ultra[this_dev];
613 if (dev) {
614 unregister_netdev(dev);
615 cleanup_card(dev);
616 free_netdev(dev);
617 }
618 }
619}
620#endif /* MODULE */