blob: d2dd8e6113ab9be23121d7a4f061acfcd305e420 [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 if (base_addr > 0x1ff) /* Check a single specified location. */
146 return ultra_probe1(dev, base_addr);
147 else if (base_addr != 0) /* Don't probe at all. */
148 return -ENXIO;
149
150#ifdef __ISAPNP__
151 /* Look for any installed ISAPnP cards */
152 if (isapnp_present() && (ultra_probe_isapnp(dev) == 0))
153 return 0;
154#endif
155
156 for (i = 0; ultra_portlist[i]; i++) {
157 dev->irq = irq;
158 if (ultra_probe1(dev, ultra_portlist[i]) == 0)
159 return 0;
160 }
161
162 return -ENODEV;
163}
164
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165#ifndef MODULE
166struct net_device * __init ultra_probe(int unit)
167{
168 struct net_device *dev = alloc_ei_netdev();
169 int err;
170
171 if (!dev)
172 return ERR_PTR(-ENOMEM);
173
174 sprintf(dev->name, "eth%d", unit);
175 netdev_boot_setup_check(dev);
176
177 err = do_ultra_probe(dev);
178 if (err)
179 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180 return dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181out:
182 free_netdev(dev);
183 return ERR_PTR(err);
184}
185#endif
186
Stephen Hemmingerd0798412008-11-25 18:23:06 -0800187static const struct net_device_ops ultra_netdev_ops = {
188 .ndo_open = ultra_open,
189 .ndo_stop = ultra_close_card,
190
191 .ndo_start_xmit = ei_start_xmit,
192 .ndo_tx_timeout = ei_tx_timeout,
193 .ndo_get_stats = ei_get_stats,
194 .ndo_set_multicast_list = ei_set_multicast_list,
195 .ndo_validate_addr = eth_validate_addr,
Stephen Hemmingerfe96aaa2009-01-09 11:13:14 +0000196 .ndo_set_mac_address = eth_mac_addr,
Stephen Hemmingerd0798412008-11-25 18:23:06 -0800197 .ndo_change_mtu = eth_change_mtu,
198#ifdef CONFIG_NET_POLL_CONTROLLER
Stephen Hemminger06e88402009-03-26 15:11:31 +0000199 .ndo_poll_controller = ultra_poll,
Stephen Hemmingerd0798412008-11-25 18:23:06 -0800200#endif
201};
202
Linus Torvalds1da177e2005-04-16 15:20:36 -0700203static int __init ultra_probe1(struct net_device *dev, int ioaddr)
204{
205 int i, retval;
206 int checksum = 0;
207 const char *model_name;
208 unsigned char eeprom_irq = 0;
209 static unsigned version_printed;
210 /* Values from various config regs. */
211 unsigned char num_pages, irqreg, addr, piomode;
212 unsigned char idreg = inb(ioaddr + 7);
213 unsigned char reg4 = inb(ioaddr + 4) & 0x7f;
214
215 if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME))
216 return -EBUSY;
217
218 /* Check the ID nibble. */
219 if ((idreg & 0xF0) != 0x20 /* SMC Ultra */
220 && (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */
221 retval = -ENODEV;
222 goto out;
223 }
224
225 /* Select the station address register set. */
226 outb(reg4, ioaddr + 4);
227
228 for (i = 0; i < 8; i++)
229 checksum += inb(ioaddr + 8 + i);
230 if ((checksum & 0xff) != 0xFF) {
231 retval = -ENODEV;
232 goto out;
233 }
234
235 if (ei_debug && version_printed++ == 0)
236 printk(version);
237
238 model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
239
Linus Torvalds1da177e2005-04-16 15:20:36 -0700240 for (i = 0; i < 6; i++)
Joe Perches0795af52007-10-03 17:59:30 -0700241 dev->dev_addr[i] = inb(ioaddr + 8 + i);
242
Johannes Berge1749612008-10-27 15:59:26 -0700243 printk("%s: %s at %#3x, %pM", dev->name, model_name,
244 ioaddr, dev->dev_addr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245
246 /* Switch from the station address to the alternate register set and
247 read the useful registers there. */
248 outb(0x80 | reg4, ioaddr + 4);
249
250 /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
251 outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
252 piomode = inb(ioaddr + 0x8);
253 addr = inb(ioaddr + 0xb);
254 irqreg = inb(ioaddr + 0xd);
255
256 /* Switch back to the station address register set so that the MS-DOS driver
257 can find the card after a warm boot. */
258 outb(reg4, ioaddr + 4);
259
260 if (dev->irq < 2) {
261 unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
262 int irq;
263
264 /* The IRQ bits are split. */
265 irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)];
266
267 if (irq == 0) {
268 printk(", failed to detect IRQ line.\n");
269 retval = -EAGAIN;
270 goto out;
271 }
272 dev->irq = irq;
273 eeprom_irq = 1;
274 }
275
276 /* The 8390 isn't at the base address, so fake the offset */
277 dev->base_addr = ioaddr+ULTRA_NIC_OFFSET;
278
279 {
280 int addr_tbl[4] = {0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000};
281 short num_pages_tbl[4] = {0x20, 0x40, 0x80, 0xff};
282
283 dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
284 num_pages = num_pages_tbl[(addr >> 4) & 3];
285 }
286
287 ei_status.name = model_name;
288 ei_status.word16 = 1;
289 ei_status.tx_start_page = START_PG;
290 ei_status.rx_start_page = START_PG + TX_PAGES;
291 ei_status.stop_page = num_pages;
292
293 ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256);
294 if (!ei_status.mem) {
295 printk(", failed to ioremap.\n");
296 retval = -ENOMEM;
297 goto out;
298 }
299
300 dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256;
301
302 if (piomode) {
303 printk(",%s IRQ %d programmed-I/O mode.\n",
304 eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
305 ei_status.block_input = &ultra_pio_input;
306 ei_status.block_output = &ultra_pio_output;
307 ei_status.get_8390_hdr = &ultra_pio_get_hdr;
308 } else {
309 printk(",%s IRQ %d memory %#lx-%#lx.\n", eeprom_irq ? "" : "assigned ",
310 dev->irq, dev->mem_start, dev->mem_end-1);
311 ei_status.block_input = &ultra_block_input;
312 ei_status.block_output = &ultra_block_output;
313 ei_status.get_8390_hdr = &ultra_get_8390_hdr;
314 }
315 ei_status.reset_8390 = &ultra_reset_8390;
Stephen Hemmingerd0798412008-11-25 18:23:06 -0800316
317 dev->netdev_ops = &ultra_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 NS8390_init(dev, 0);
319
b1fc5502005-05-12 20:11:55 -0400320 retval = register_netdev(dev);
321 if (retval)
322 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323 return 0;
324out:
325 release_region(ioaddr, ULTRA_IO_EXTENT);
326 return retval;
327}
328
329#ifdef __ISAPNP__
330static int __init ultra_probe_isapnp(struct net_device *dev)
331{
332 int i;
333
334 for (i = 0; ultra_device_ids[i].vendor != 0; i++) {
335 struct pnp_dev *idev = NULL;
336
337 while ((idev = pnp_find_dev(NULL,
338 ultra_device_ids[i].vendor,
339 ultra_device_ids[i].function,
340 idev))) {
341 /* Avoid already found cards from previous calls */
342 if (pnp_device_attach(idev) < 0)
343 continue;
344 if (pnp_activate_dev(idev) < 0) {
345 __again:
346 pnp_device_detach(idev);
347 continue;
348 }
349 /* if no io and irq, search for next */
350 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
351 goto __again;
352 /* found it */
353 dev->base_addr = pnp_port_start(idev, 0);
354 dev->irq = pnp_irq(idev, 0);
355 printk(KERN_INFO "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
356 (char *) ultra_device_ids[i].driver_data,
357 dev->base_addr, dev->irq);
358 if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
359 printk(KERN_ERR "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n", dev->base_addr);
360 pnp_device_detach(idev);
361 return -ENXIO;
362 }
363 ei_status.priv = (unsigned long)idev;
364 break;
365 }
366 if (!idev)
367 continue;
368 return 0;
369 }
370
371 return -ENODEV;
372}
373#endif
374
375static int
376ultra_open(struct net_device *dev)
377{
378 int retval;
379 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
380 unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
381 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
382
383 retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
384 if (retval)
385 return retval;
386
387 outb(0x00, ioaddr); /* Disable shared memory for safety. */
388 outb(0x80, ioaddr + 5);
389 /* Set the IRQ line. */
390 outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
391 outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
392 outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
393
394 if (ei_status.block_input == &ultra_pio_input) {
395 outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */
396 outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */
397 } else
398 outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
399 /* Set the early receive warning level in window 0 high enough not
400 to receive ERW interrupts. */
401 outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
402 outb(0xff, dev->base_addr + EN0_ERWCNT);
403 ei_open(dev);
404 return 0;
405}
406
407static void
408ultra_reset_8390(struct net_device *dev)
409{
410 int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
411
412 outb(ULTRA_RESET, cmd_port);
413 if (ei_debug > 1) printk("resetting Ultra, t=%ld...", jiffies);
414 ei_status.txing = 0;
415
416 outb(0x00, cmd_port); /* Disable shared memory for safety. */
417 outb(0x80, cmd_port + 5);
418 if (ei_status.block_input == &ultra_pio_input)
419 outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */
420 else
421 outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */
422
423 if (ei_debug > 1) printk("reset done\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424}
425
426/* Grab the 8390 specific header. Similar to the block_input routine, but
427 we don't need to be concerned with ring wrap as the header will be at
428 the start of a page, so we optimize accordingly. */
429
430static void
431ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
432{
433 void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8);
434
435 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */
436#ifdef __BIG_ENDIAN
437 /* Officially this is what we are doing, but the readl() is faster */
438 /* unfortunately it isn't endian aware of the struct */
439 memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
440 hdr->count = le16_to_cpu(hdr->count);
441#else
442 ((unsigned int*)hdr)[0] = readl(hdr_start);
443#endif
444 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
445}
446
447/* Block input and output are easy on shared memory ethercards, the only
448 complication is when the ring buffer wraps. */
449
450static void
451ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
452{
453 void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8);
454
455 /* Enable shared memory. */
456 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
457
458 if (ring_offset + count > ei_status.stop_page*256) {
459 /* We must wrap the input move. */
460 int semi_count = ei_status.stop_page*256 - ring_offset;
461 memcpy_fromio(skb->data, xfer_start, semi_count);
462 count -= semi_count;
463 memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
464 } else {
Al Viro4ec03112007-02-09 16:38:30 +0000465 memcpy_fromio(skb->data, xfer_start, count);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700466 }
467
468 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
469}
470
471static void
472ultra_block_output(struct net_device *dev, int count, const unsigned char *buf,
473 int start_page)
474{
475 void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8);
476
477 /* Enable shared memory. */
478 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
479
480 memcpy_toio(shmem, buf, count);
481
482 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
483}
484
485/* The identical operations for programmed I/O cards.
486 The PIO model is trivial to use: the 16 bit start address is written
487 byte-sequentially to IOPA, with no intervening I/O operations, and the
488 data is read or written to the IOPD data port.
489 The only potential complication is that the address register is shared
490 and must be always be rewritten between each read/write direction change.
491 This is no problem for us, as the 8390 code ensures that we are single
492 threaded. */
493static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
494 int ring_page)
495{
496 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
497 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
498 outb(ring_page, ioaddr + IOPA);
499 insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
500}
501
502static void ultra_pio_input(struct net_device *dev, int count,
503 struct sk_buff *skb, int ring_offset)
504{
505 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
506 char *buf = skb->data;
507
508 /* For now set the address again, although it should already be correct. */
509 outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */
510 outb(ring_offset >> 8, ioaddr + IOPA);
511 /* We know skbuffs are padded to at least word alignment. */
512 insw(ioaddr + IOPD, buf, (count+1)>>1);
513}
514
515static void ultra_pio_output(struct net_device *dev, int count,
516 const unsigned char *buf, const int start_page)
517{
518 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
519 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
520 outb(start_page, ioaddr + IOPA);
521 /* An extra odd byte is OK here as well. */
522 outsw(ioaddr + IOPD, buf, (count+1)>>1);
523}
524
525static int
526ultra_close_card(struct net_device *dev)
527{
528 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */
529
530 netif_stop_queue(dev);
531
532 if (ei_debug > 1)
533 printk("%s: Shutting down ethercard.\n", dev->name);
534
535 outb(0x00, ioaddr + 6); /* Disable interrupts. */
536 free_irq(dev->irq, dev);
537
538 NS8390_init(dev, 0);
539
540 /* We should someday disable shared memory and change to 8-bit mode
541 "just in case"... */
542
543 return 0;
544}
545
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400546
Linus Torvalds1da177e2005-04-16 15:20:36 -0700547#ifdef MODULE
548#define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */
549static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
550static int io[MAX_ULTRA_CARDS];
551static int irq[MAX_ULTRA_CARDS];
552
553module_param_array(io, int, NULL, 0);
554module_param_array(irq, int, NULL, 0);
555MODULE_PARM_DESC(io, "I/O base address(es)");
556MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
557MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver");
558MODULE_LICENSE("GPL");
559
560/* This is set up so that only a single autoprobe takes place per call.
561ISA device autoprobes on a running machine are not recommended. */
Randy Dunlapa2bd2ec2006-06-10 13:30:10 -0700562int __init
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563init_module(void)
564{
565 struct net_device *dev;
566 int this_dev, found = 0;
567
568 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
569 if (io[this_dev] == 0) {
570 if (this_dev != 0) break; /* only autoprobe 1st one */
571 printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
572 }
573 dev = alloc_ei_netdev();
574 if (!dev)
575 break;
576 dev->irq = irq[this_dev];
577 dev->base_addr = io[this_dev];
578 if (do_ultra_probe(dev) == 0) {
b1fc5502005-05-12 20:11:55 -0400579 dev_ultra[found++] = dev;
580 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700581 }
582 free_netdev(dev);
583 printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
584 break;
585 }
586 if (found)
587 return 0;
588 return -ENXIO;
589}
590
Denis Vlasenko64916f12006-01-05 22:45:47 -0800591static void cleanup_card(struct net_device *dev)
592{
593 /* NB: ultra_close_card() does free_irq */
594#ifdef __ISAPNP__
595 struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv;
596 if (idev)
597 pnp_device_detach(idev);
598#endif
599 release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT);
600 iounmap(ei_status.mem);
601}
602
Al Viroafc8eb42006-06-14 18:50:53 -0400603void __exit
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604cleanup_module(void)
605{
606 int this_dev;
607
608 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
609 struct net_device *dev = dev_ultra[this_dev];
610 if (dev) {
611 unregister_netdev(dev);
612 cleanup_card(dev);
613 free_netdev(dev);
614 }
615 }
616}
617#endif /* MODULE */