1 /* 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
57 static const char version[] =
58 "smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
59
60 #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/interrupt.h>
66 #include <linux/isapnp.h>
67 #include <linux/netdevice.h>
68 #include <linux/etherdevice.h>
69
70 #include <asm/io.h>
71 #include <asm/irq.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. */
78 static unsigned int ultra_portlist[] __initdata =
79 {0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0};
80
81 static int ultra_probe1(struct net_device *dev, int ioaddr);
82
83 #ifdef __ISAPNP__
84 static int ultra_probe_isapnp(struct net_device *dev);
85 #endif
86
87 static int ultra_open(struct net_device *dev);
88 static void ultra_reset_8390(struct net_device *dev);
89 static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
90 int ring_page);
91 static void ultra_block_input(struct net_device *dev, int count,
92 struct sk_buff *skb, int ring_offset);
93 static void ultra_block_output(struct net_device *dev, int count,
94 const unsigned char *buf, const int start_page);
95 static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
96 int ring_page);
97 static void ultra_pio_input(struct net_device *dev, int count,
98 struct sk_buff *skb, int ring_offset);
99 static void ultra_pio_output(struct net_device *dev, int count,
100 const unsigned char *buf, const int start_page);
101 static int ultra_close_card(struct net_device *dev);
102
103 #ifdef __ISAPNP__
104 static 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
111 MODULE_DEVICE_TABLE(isapnp, ultra_device_ids);
112 #endif
113
114 static u32 ultra_msg_enable;
115
116 #define START_PG 0x00 /* First page of TX buffer */
117
118 #define ULTRA_CMDREG 0 /* Offset to ASIC command register. */
119 #define ULTRA_RESET 0x80 /* Board reset, in ULTRA_CMDREG. */
120 #define ULTRA_MEMENB 0x40 /* Enable the shared memory. */
121 #define IOPD 0x02 /* I/O Pipe Data (16 bits), PIO operation. */
122 #define IOPA 0x07 /* I/O Pipe Address for PIO operation. */
123 #define ULTRA_NIC_OFFSET 16 /* NIC register offset from the base_addr. */
124 #define ULTRA_IO_EXTENT 32
125 #define EN0_ERWCNT 0x08 /* Early receive warning count. */
126
127 #ifdef CONFIG_NET_POLL_CONTROLLER
ultra_poll(struct net_device * dev)128 static void ultra_poll(struct net_device *dev)
129 {
130 disable_irq(dev->irq);
131 ei_interrupt(dev->irq, dev);
132 enable_irq(dev->irq);
133 }
134 #endif
135 /* Probe for the Ultra. This looks like a 8013 with the station
136 address PROM at I/O ports <base>+8 to <base>+13, with a checksum
137 following.
138 */
139
do_ultra_probe(struct net_device * dev)140 static int __init do_ultra_probe(struct net_device *dev)
141 {
142 int i;
143 int base_addr = dev->base_addr;
144 int irq = dev->irq;
145
146 if (base_addr > 0x1ff) /* Check a single specified location. */
147 return ultra_probe1(dev, base_addr);
148 else if (base_addr != 0) /* Don't probe at all. */
149 return -ENXIO;
150
151 #ifdef __ISAPNP__
152 /* Look for any installed ISAPnP cards */
153 if (isapnp_present() && (ultra_probe_isapnp(dev) == 0))
154 return 0;
155 #endif
156
157 for (i = 0; ultra_portlist[i]; i++) {
158 dev->irq = irq;
159 if (ultra_probe1(dev, ultra_portlist[i]) == 0)
160 return 0;
161 }
162
163 return -ENODEV;
164 }
165
166 #ifndef MODULE
ultra_probe(int unit)167 struct net_device * __init ultra_probe(int unit)
168 {
169 struct net_device *dev = alloc_ei_netdev();
170 int err;
171
172 if (!dev)
173 return ERR_PTR(-ENOMEM);
174
175 sprintf(dev->name, "eth%d", unit);
176 netdev_boot_setup_check(dev);
177
178 err = do_ultra_probe(dev);
179 if (err)
180 goto out;
181 return dev;
182 out:
183 free_netdev(dev);
184 return ERR_PTR(err);
185 }
186 #endif
187
188 static const struct net_device_ops ultra_netdev_ops = {
189 .ndo_open = ultra_open,
190 .ndo_stop = ultra_close_card,
191
192 .ndo_start_xmit = ei_start_xmit,
193 .ndo_tx_timeout = ei_tx_timeout,
194 .ndo_get_stats = ei_get_stats,
195 .ndo_set_rx_mode = ei_set_multicast_list,
196 .ndo_validate_addr = eth_validate_addr,
197 .ndo_set_mac_address = eth_mac_addr,
198 #ifdef CONFIG_NET_POLL_CONTROLLER
199 .ndo_poll_controller = ultra_poll,
200 #endif
201 };
202
ultra_probe1(struct net_device * dev,int ioaddr)203 static 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 struct ei_device *ei_local = netdev_priv(dev);
215
216 if (!request_region(ioaddr, ULTRA_IO_EXTENT, DRV_NAME))
217 return -EBUSY;
218
219 /* Check the ID nibble. */
220 if ((idreg & 0xF0) != 0x20 /* SMC Ultra */
221 && (idreg & 0xF0) != 0x40) { /* SMC EtherEZ */
222 retval = -ENODEV;
223 goto out;
224 }
225
226 /* Select the station address register set. */
227 outb(reg4, ioaddr + 4);
228
229 for (i = 0; i < 8; i++)
230 checksum += inb(ioaddr + 8 + i);
231 if ((checksum & 0xff) != 0xFF) {
232 retval = -ENODEV;
233 goto out;
234 }
235
236 if ((ultra_msg_enable & NETIF_MSG_DRV) && (version_printed++ == 0))
237 netdev_info(dev, version);
238
239 model_name = (idreg & 0xF0) == 0x20 ? "SMC Ultra" : "SMC EtherEZ";
240
241 for (i = 0; i < 6; i++)
242 dev->dev_addr[i] = inb(ioaddr + 8 + i);
243
244 netdev_info(dev, "%s at %#3x, %pM", model_name,
245 ioaddr, dev->dev_addr);
246
247 /* Switch from the station address to the alternate register set and
248 read the useful registers there. */
249 outb(0x80 | reg4, ioaddr + 4);
250
251 /* Enabled FINE16 mode to avoid BIOS ROM width mismatches @ reboot. */
252 outb(0x80 | inb(ioaddr + 0x0c), ioaddr + 0x0c);
253 piomode = inb(ioaddr + 0x8);
254 addr = inb(ioaddr + 0xb);
255 irqreg = inb(ioaddr + 0xd);
256
257 /* Switch back to the station address register set so that the MS-DOS driver
258 can find the card after a warm boot. */
259 outb(reg4, ioaddr + 4);
260
261 if (dev->irq < 2) {
262 unsigned char irqmap[] = {0, 9, 3, 5, 7, 10, 11, 15};
263 int irq;
264
265 /* The IRQ bits are split. */
266 irq = irqmap[((irqreg & 0x40) >> 4) + ((irqreg & 0x0c) >> 2)];
267
268 if (irq == 0) {
269 pr_cont(", failed to detect IRQ line.\n");
270 retval = -EAGAIN;
271 goto out;
272 }
273 dev->irq = irq;
274 eeprom_irq = 1;
275 }
276
277 /* The 8390 isn't at the base address, so fake the offset */
278 dev->base_addr = ioaddr+ULTRA_NIC_OFFSET;
279
280 {
281 static const int addr_tbl[4] = {
282 0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000
283 };
284 static const short num_pages_tbl[4] = {
285 0x20, 0x40, 0x80, 0xff
286 };
287
288 dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
289 num_pages = num_pages_tbl[(addr >> 4) & 3];
290 }
291
292 ei_status.name = model_name;
293 ei_status.word16 = 1;
294 ei_status.tx_start_page = START_PG;
295 ei_status.rx_start_page = START_PG + TX_PAGES;
296 ei_status.stop_page = num_pages;
297
298 ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256);
299 if (!ei_status.mem) {
300 pr_cont(", failed to ioremap.\n");
301 retval = -ENOMEM;
302 goto out;
303 }
304
305 dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256;
306
307 if (piomode) {
308 pr_cont(", %s IRQ %d programmed-I/O mode.\n",
309 eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
310 ei_status.block_input = &ultra_pio_input;
311 ei_status.block_output = &ultra_pio_output;
312 ei_status.get_8390_hdr = &ultra_pio_get_hdr;
313 } else {
314 pr_cont(", %s IRQ %d memory %#lx-%#lx.\n",
315 eeprom_irq ? "" : "assigned ", dev->irq, dev->mem_start,
316 dev->mem_end-1);
317 ei_status.block_input = &ultra_block_input;
318 ei_status.block_output = &ultra_block_output;
319 ei_status.get_8390_hdr = &ultra_get_8390_hdr;
320 }
321 ei_status.reset_8390 = &ultra_reset_8390;
322
323 dev->netdev_ops = &ultra_netdev_ops;
324 NS8390_init(dev, 0);
325 ei_local->msg_enable = ultra_msg_enable;
326
327 retval = register_netdev(dev);
328 if (retval)
329 goto out;
330 return 0;
331 out:
332 release_region(ioaddr, ULTRA_IO_EXTENT);
333 return retval;
334 }
335
336 #ifdef __ISAPNP__
ultra_probe_isapnp(struct net_device * dev)337 static int __init ultra_probe_isapnp(struct net_device *dev)
338 {
339 int i;
340
341 for (i = 0; ultra_device_ids[i].vendor != 0; i++) {
342 struct pnp_dev *idev = NULL;
343
344 while ((idev = pnp_find_dev(NULL,
345 ultra_device_ids[i].vendor,
346 ultra_device_ids[i].function,
347 idev))) {
348 /* Avoid already found cards from previous calls */
349 if (pnp_device_attach(idev) < 0)
350 continue;
351 if (pnp_activate_dev(idev) < 0) {
352 __again:
353 pnp_device_detach(idev);
354 continue;
355 }
356 /* if no io and irq, search for next */
357 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
358 goto __again;
359 /* found it */
360 dev->base_addr = pnp_port_start(idev, 0);
361 dev->irq = pnp_irq(idev, 0);
362 netdev_info(dev,
363 "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
364 (char *) ultra_device_ids[i].driver_data,
365 dev->base_addr, dev->irq);
366 if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
367 netdev_err(dev,
368 "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n",
369 dev->base_addr);
370 pnp_device_detach(idev);
371 return -ENXIO;
372 }
373 ei_status.priv = (unsigned long)idev;
374 break;
375 }
376 if (!idev)
377 continue;
378 return 0;
379 }
380
381 return -ENODEV;
382 }
383 #endif
384
385 static int
ultra_open(struct net_device * dev)386 ultra_open(struct net_device *dev)
387 {
388 int retval;
389 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
390 unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
391 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
392
393 retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
394 if (retval)
395 return retval;
396
397 outb(0x00, ioaddr); /* Disable shared memory for safety. */
398 outb(0x80, ioaddr + 5);
399 /* Set the IRQ line. */
400 outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
401 outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
402 outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
403
404 if (ei_status.block_input == &ultra_pio_input) {
405 outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */
406 outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */
407 } else
408 outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
409 /* Set the early receive warning level in window 0 high enough not
410 to receive ERW interrupts. */
411 outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
412 outb(0xff, dev->base_addr + EN0_ERWCNT);
413 ei_open(dev);
414 return 0;
415 }
416
417 static void
ultra_reset_8390(struct net_device * dev)418 ultra_reset_8390(struct net_device *dev)
419 {
420 int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
421 struct ei_device *ei_local = netdev_priv(dev);
422
423 outb(ULTRA_RESET, cmd_port);
424 netif_dbg(ei_local, hw, dev, "resetting Ultra, t=%ld...\n", jiffies);
425 ei_status.txing = 0;
426
427 outb(0x00, cmd_port); /* Disable shared memory for safety. */
428 outb(0x80, cmd_port + 5);
429 if (ei_status.block_input == &ultra_pio_input)
430 outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */
431 else
432 outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */
433
434 netif_dbg(ei_local, hw, dev, "reset done\n");
435 }
436
437 /* Grab the 8390 specific header. Similar to the block_input routine, but
438 we don't need to be concerned with ring wrap as the header will be at
439 the start of a page, so we optimize accordingly. */
440
441 static void
ultra_get_8390_hdr(struct net_device * dev,struct e8390_pkt_hdr * hdr,int ring_page)442 ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
443 {
444 void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8);
445
446 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */
447 #ifdef __BIG_ENDIAN
448 /* Officially this is what we are doing, but the readl() is faster */
449 /* unfortunately it isn't endian aware of the struct */
450 memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
451 hdr->count = le16_to_cpu(hdr->count);
452 #else
453 ((unsigned int*)hdr)[0] = readl(hdr_start);
454 #endif
455 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
456 }
457
458 /* Block input and output are easy on shared memory ethercards, the only
459 complication is when the ring buffer wraps. */
460
461 static void
ultra_block_input(struct net_device * dev,int count,struct sk_buff * skb,int ring_offset)462 ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
463 {
464 void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8);
465
466 /* Enable shared memory. */
467 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
468
469 if (ring_offset + count > ei_status.stop_page*256) {
470 /* We must wrap the input move. */
471 int semi_count = ei_status.stop_page*256 - ring_offset;
472 memcpy_fromio(skb->data, xfer_start, semi_count);
473 count -= semi_count;
474 memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
475 } else {
476 memcpy_fromio(skb->data, xfer_start, count);
477 }
478
479 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
480 }
481
482 static void
ultra_block_output(struct net_device * dev,int count,const unsigned char * buf,int start_page)483 ultra_block_output(struct net_device *dev, int count, const unsigned char *buf,
484 int start_page)
485 {
486 void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8);
487
488 /* Enable shared memory. */
489 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
490
491 memcpy_toio(shmem, buf, count);
492
493 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
494 }
495
496 /* The identical operations for programmed I/O cards.
497 The PIO model is trivial to use: the 16 bit start address is written
498 byte-sequentially to IOPA, with no intervening I/O operations, and the
499 data is read or written to the IOPD data port.
500 The only potential complication is that the address register is shared
501 and must be always be rewritten between each read/write direction change.
502 This is no problem for us, as the 8390 code ensures that we are single
503 threaded. */
ultra_pio_get_hdr(struct net_device * dev,struct e8390_pkt_hdr * hdr,int ring_page)504 static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
505 int ring_page)
506 {
507 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
508 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
509 outb(ring_page, ioaddr + IOPA);
510 insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
511 }
512
ultra_pio_input(struct net_device * dev,int count,struct sk_buff * skb,int ring_offset)513 static void ultra_pio_input(struct net_device *dev, int count,
514 struct sk_buff *skb, int ring_offset)
515 {
516 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
517 char *buf = skb->data;
518
519 /* For now set the address again, although it should already be correct. */
520 outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */
521 outb(ring_offset >> 8, ioaddr + IOPA);
522 /* We know skbuffs are padded to at least word alignment. */
523 insw(ioaddr + IOPD, buf, (count+1)>>1);
524 }
525
ultra_pio_output(struct net_device * dev,int count,const unsigned char * buf,const int start_page)526 static void ultra_pio_output(struct net_device *dev, int count,
527 const unsigned char *buf, const int start_page)
528 {
529 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
530 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
531 outb(start_page, ioaddr + IOPA);
532 /* An extra odd byte is OK here as well. */
533 outsw(ioaddr + IOPD, buf, (count+1)>>1);
534 }
535
536 static int
ultra_close_card(struct net_device * dev)537 ultra_close_card(struct net_device *dev)
538 {
539 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* CMDREG */
540 struct ei_device *ei_local = netdev_priv(dev);
541
542 netif_stop_queue(dev);
543
544 netif_dbg(ei_local, ifdown, dev, "Shutting down ethercard.\n");
545
546 outb(0x00, ioaddr + 6); /* Disable interrupts. */
547 free_irq(dev->irq, dev);
548
549 NS8390_init(dev, 0);
550
551 /* We should someday disable shared memory and change to 8-bit mode
552 "just in case"... */
553
554 return 0;
555 }
556
557
558 #ifdef MODULE
559 #define MAX_ULTRA_CARDS 4 /* Max number of Ultra cards per module */
560 static struct net_device *dev_ultra[MAX_ULTRA_CARDS];
561 static int io[MAX_ULTRA_CARDS];
562 static int irq[MAX_ULTRA_CARDS];
563
564 module_param_hw_array(io, int, ioport, NULL, 0);
565 module_param_hw_array(irq, int, irq, NULL, 0);
566 module_param_named(msg_enable, ultra_msg_enable, uint, 0444);
567 MODULE_PARM_DESC(io, "I/O base address(es)");
568 MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)");
569 MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)");
570 MODULE_DESCRIPTION("SMC Ultra/EtherEZ ISA/PnP Ethernet driver");
571 MODULE_LICENSE("GPL");
572
573 /* This is set up so that only a single autoprobe takes place per call.
574 ISA device autoprobes on a running machine are not recommended. */
575 int __init
init_module(void)576 init_module(void)
577 {
578 struct net_device *dev;
579 int this_dev, found = 0;
580
581 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
582 if (io[this_dev] == 0) {
583 if (this_dev != 0) break; /* only autoprobe 1st one */
584 printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
585 }
586 dev = alloc_ei_netdev();
587 if (!dev)
588 break;
589 dev->irq = irq[this_dev];
590 dev->base_addr = io[this_dev];
591 if (do_ultra_probe(dev) == 0) {
592 dev_ultra[found++] = dev;
593 continue;
594 }
595 free_netdev(dev);
596 printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
597 break;
598 }
599 if (found)
600 return 0;
601 return -ENXIO;
602 }
603
cleanup_card(struct net_device * dev)604 static void cleanup_card(struct net_device *dev)
605 {
606 /* NB: ultra_close_card() does free_irq */
607 #ifdef __ISAPNP__
608 struct pnp_dev *idev = (struct pnp_dev *)ei_status.priv;
609 if (idev)
610 pnp_device_detach(idev);
611 #endif
612 release_region(dev->base_addr - ULTRA_NIC_OFFSET, ULTRA_IO_EXTENT);
613 iounmap(ei_status.mem);
614 }
615
616 void __exit
cleanup_module(void)617 cleanup_module(void)
618 {
619 int this_dev;
620
621 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
622 struct net_device *dev = dev_ultra[this_dev];
623 if (dev) {
624 unregister_netdev(dev);
625 cleanup_card(dev);
626 free_netdev(dev);
627 }
628 }
629 }
630 #endif /* MODULE */
631
