1 // SPDX-License-Identifier: GPL-1.0+
2 /* smc-ultra.c: A SMC Ultra ethernet driver for linux. */
3 /*
4 This is a driver for the SMC Ultra and SMC EtherEZ ISA ethercards.
5
6 Written 1993-1998 by Donald Becker.
7
8 Copyright 1993 United States Government as represented by the
9 Director, National Security Agency.
10
11 The author may be reached as becker@scyld.com, or C/O
12 Scyld Computing Corporation
13 410 Severn Ave., Suite 210
14 Annapolis MD 21403
15
16 This driver uses the cards in the 8390-compatible mode.
17 Most of the run-time complexity is handled by the generic code in
18 8390.c. The code in this file is responsible for
19
20 ultra_probe() Detecting and initializing the card.
21 ultra_probe1()
22 ultra_probe_isapnp()
23
24 ultra_open() The card-specific details of starting, stopping
25 ultra_reset_8390() and resetting the 8390 NIC core.
26 ultra_close()
27
28 ultra_block_input() Routines for reading and writing blocks of
29 ultra_block_output() packet buffer memory.
30 ultra_pio_input()
31 ultra_pio_output()
32
33 This driver enables the shared memory only when doing the actual data
34 transfers to avoid a bug in early version of the card that corrupted
35 data transferred by a AHA1542.
36
37 This driver now supports the programmed-I/O (PIO) data transfer mode of
38 the EtherEZ. It does not use the non-8390-compatible "Altego" mode.
39 That support (if available) is in smc-ez.c.
40
41 Changelog:
42
43 Paul Gortmaker : multiple card support for module users.
44 Donald Becker : 4/17/96 PIO support, minor potential problems avoided.
45 Donald Becker : 6/6/96 correctly set auto-wrap bit.
46 Alexander Sotirov : 1/20/01 Added support for ISAPnP cards
47
48 Note about the ISA PnP support:
49
50 This driver can not autoprobe for more than one SMC EtherEZ PnP card.
51 You have to configure the second card manually through the /proc/isapnp
52 interface and then load the module with an explicit io=0x___ option.
53 */
54
55 static const char version[] =
56 "smc-ultra.c:v2.02 2/3/98 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
57
58 #include <linux/module.h>
59 #include <linux/kernel.h>
60 #include <linux/errno.h>
61 #include <linux/string.h>
62 #include <linux/init.h>
63 #include <linux/interrupt.h>
64 #include <linux/isapnp.h>
65 #include <linux/netdevice.h>
66 #include <linux/etherdevice.h>
67 #include <net/Space.h>
68
69 #include <asm/io.h>
70 #include <asm/irq.h>
71
72 #include "8390.h"
73
74 #define DRV_NAME "smc-ultra"
75
76 /* A zero-terminated list of I/O addresses to be probed. */
77 static unsigned int ultra_portlist[] __initdata =
78 {0x200, 0x220, 0x240, 0x280, 0x300, 0x340, 0x380, 0};
79
80 static int ultra_probe1(struct net_device *dev, int ioaddr);
81
82 #ifdef __ISAPNP__
83 static int ultra_probe_isapnp(struct net_device *dev);
84 #endif
85
86 static int ultra_open(struct net_device *dev);
87 static void ultra_reset_8390(struct net_device *dev);
88 static void ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
89 int ring_page);
90 static void ultra_block_input(struct net_device *dev, int count,
91 struct sk_buff *skb, int ring_offset);
92 static void ultra_block_output(struct net_device *dev, int count,
93 const unsigned char *buf, const int start_page);
94 static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
95 int ring_page);
96 static void ultra_pio_input(struct net_device *dev, int count,
97 struct sk_buff *skb, int ring_offset);
98 static void ultra_pio_output(struct net_device *dev, int count,
99 const unsigned char *buf, const int start_page);
100 static int ultra_close_card(struct net_device *dev);
101
102 #ifdef __ISAPNP__
103 static struct isapnp_device_id ultra_device_ids[] __initdata = {
104 { ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
105 ISAPNP_VENDOR('S','M','C'), ISAPNP_FUNCTION(0x8416),
106 (long) "SMC EtherEZ (8416)" },
107 { } /* terminate list */
108 };
109
110 MODULE_DEVICE_TABLE(isapnp, ultra_device_ids);
111 #endif
112
113 static u32 ultra_msg_enable;
114
115 #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. */
125
126 #ifdef CONFIG_NET_POLL_CONTROLLER
ultra_poll(struct net_device * dev)127 static void ultra_poll(struct net_device *dev)
128 {
129 disable_irq(dev->irq);
130 ei_interrupt(dev->irq, dev);
131 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
do_ultra_probe(struct net_device * dev)139 static 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
145 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
165 #ifndef MODULE
ultra_probe(int unit)166 struct 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;
180 return dev;
181 out:
182 free_netdev(dev);
183 return ERR_PTR(err);
184 }
185 #endif
186
187 static 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_rx_mode = ei_set_multicast_list,
195 .ndo_validate_addr = eth_validate_addr,
196 .ndo_set_mac_address = eth_mac_addr,
197 #ifdef CONFIG_NET_POLL_CONTROLLER
198 .ndo_poll_controller = ultra_poll,
199 #endif
200 };
201
ultra_probe1(struct net_device * dev,int ioaddr)202 static int __init ultra_probe1(struct net_device *dev, int ioaddr)
203 {
204 int i, retval;
205 int checksum = 0;
206 u8 macaddr[ETH_ALEN];
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 macaddr[i] = inb(ioaddr + 8 + i);
243 eth_hw_addr_set(dev, macaddr);
244
245 netdev_info(dev, "%s at %#3x, %pM", model_name,
246 ioaddr, dev->dev_addr);
247
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 pr_cont(", 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 static const int addr_tbl[4] = {
283 0x0C0000, 0x0E0000, 0xFC0000, 0xFE0000
284 };
285 static const short num_pages_tbl[4] = {
286 0x20, 0x40, 0x80, 0xff
287 };
288
289 dev->mem_start = ((addr & 0x0f) << 13) + addr_tbl[(addr >> 6) & 3] ;
290 num_pages = num_pages_tbl[(addr >> 4) & 3];
291 }
292
293 ei_status.name = model_name;
294 ei_status.word16 = 1;
295 ei_status.tx_start_page = START_PG;
296 ei_status.rx_start_page = START_PG + TX_PAGES;
297 ei_status.stop_page = num_pages;
298
299 ei_status.mem = ioremap(dev->mem_start, (ei_status.stop_page - START_PG)*256);
300 if (!ei_status.mem) {
301 pr_cont(", failed to ioremap.\n");
302 retval = -ENOMEM;
303 goto out;
304 }
305
306 dev->mem_end = dev->mem_start + (ei_status.stop_page - START_PG)*256;
307
308 if (piomode) {
309 pr_cont(", %s IRQ %d programmed-I/O mode.\n",
310 eeprom_irq ? "EEPROM" : "assigned ", dev->irq);
311 ei_status.block_input = &ultra_pio_input;
312 ei_status.block_output = &ultra_pio_output;
313 ei_status.get_8390_hdr = &ultra_pio_get_hdr;
314 } else {
315 pr_cont(", %s IRQ %d memory %#lx-%#lx.\n",
316 eeprom_irq ? "" : "assigned ", dev->irq, dev->mem_start,
317 dev->mem_end-1);
318 ei_status.block_input = &ultra_block_input;
319 ei_status.block_output = &ultra_block_output;
320 ei_status.get_8390_hdr = &ultra_get_8390_hdr;
321 }
322 ei_status.reset_8390 = &ultra_reset_8390;
323
324 dev->netdev_ops = &ultra_netdev_ops;
325 NS8390_init(dev, 0);
326 ei_local->msg_enable = ultra_msg_enable;
327
328 retval = register_netdev(dev);
329 if (retval)
330 goto out;
331 return 0;
332 out:
333 release_region(ioaddr, ULTRA_IO_EXTENT);
334 return retval;
335 }
336
337 #ifdef __ISAPNP__
ultra_probe_isapnp(struct net_device * dev)338 static int __init ultra_probe_isapnp(struct net_device *dev)
339 {
340 int i;
341
342 for (i = 0; ultra_device_ids[i].vendor != 0; i++) {
343 struct pnp_dev *idev = NULL;
344
345 while ((idev = pnp_find_dev(NULL,
346 ultra_device_ids[i].vendor,
347 ultra_device_ids[i].function,
348 idev))) {
349 /* Avoid already found cards from previous calls */
350 if (pnp_device_attach(idev) < 0)
351 continue;
352 if (pnp_activate_dev(idev) < 0) {
353 __again:
354 pnp_device_detach(idev);
355 continue;
356 }
357 /* if no io and irq, search for next */
358 if (!pnp_port_valid(idev, 0) || !pnp_irq_valid(idev, 0))
359 goto __again;
360 /* found it */
361 dev->base_addr = pnp_port_start(idev, 0);
362 dev->irq = pnp_irq(idev, 0);
363 netdev_info(dev,
364 "smc-ultra.c: ISAPnP reports %s at i/o %#lx, irq %d.\n",
365 (char *) ultra_device_ids[i].driver_data,
366 dev->base_addr, dev->irq);
367 if (ultra_probe1(dev, dev->base_addr) != 0) { /* Shouldn't happen. */
368 netdev_err(dev,
369 "smc-ultra.c: Probe of ISAPnP card at %#lx failed.\n",
370 dev->base_addr);
371 pnp_device_detach(idev);
372 return -ENXIO;
373 }
374 ei_status.priv = (unsigned long)idev;
375 break;
376 }
377 if (!idev)
378 continue;
379 return 0;
380 }
381
382 return -ENODEV;
383 }
384 #endif
385
386 static int
ultra_open(struct net_device * dev)387 ultra_open(struct net_device *dev)
388 {
389 int retval;
390 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
391 unsigned char irq2reg[] = {0, 0, 0x04, 0x08, 0, 0x0C, 0, 0x40,
392 0, 0x04, 0x44, 0x48, 0, 0, 0, 0x4C, };
393
394 retval = request_irq(dev->irq, ei_interrupt, 0, dev->name, dev);
395 if (retval)
396 return retval;
397
398 outb(0x00, ioaddr); /* Disable shared memory for safety. */
399 outb(0x80, ioaddr + 5);
400 /* Set the IRQ line. */
401 outb(inb(ioaddr + 4) | 0x80, ioaddr + 4);
402 outb((inb(ioaddr + 13) & ~0x4C) | irq2reg[dev->irq], ioaddr + 13);
403 outb(inb(ioaddr + 4) & 0x7f, ioaddr + 4);
404
405 if (ei_status.block_input == &ultra_pio_input) {
406 outb(0x11, ioaddr + 6); /* Enable interrupts and PIO. */
407 outb(0x01, ioaddr + 0x19); /* Enable ring read auto-wrap. */
408 } else
409 outb(0x01, ioaddr + 6); /* Enable interrupts and memory. */
410 /* Set the early receive warning level in window 0 high enough not
411 to receive ERW interrupts. */
412 outb_p(E8390_NODMA+E8390_PAGE0, dev->base_addr);
413 outb(0xff, dev->base_addr + EN0_ERWCNT);
414 ei_open(dev);
415 return 0;
416 }
417
418 static void
ultra_reset_8390(struct net_device * dev)419 ultra_reset_8390(struct net_device *dev)
420 {
421 int cmd_port = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC base addr */
422 struct ei_device *ei_local = netdev_priv(dev);
423
424 outb(ULTRA_RESET, cmd_port);
425 netif_dbg(ei_local, hw, dev, "resetting Ultra, t=%ld...\n", jiffies);
426 ei_status.txing = 0;
427
428 outb(0x00, cmd_port); /* Disable shared memory for safety. */
429 outb(0x80, cmd_port + 5);
430 if (ei_status.block_input == &ultra_pio_input)
431 outb(0x11, cmd_port + 6); /* Enable interrupts and PIO. */
432 else
433 outb(0x01, cmd_port + 6); /* Enable interrupts and memory. */
434
435 netif_dbg(ei_local, hw, dev, "reset done\n");
436 }
437
438 /* Grab the 8390 specific header. Similar to the block_input routine, but
439 we don't need to be concerned with ring wrap as the header will be at
440 the start of a page, so we optimize accordingly. */
441
442 static void
ultra_get_8390_hdr(struct net_device * dev,struct e8390_pkt_hdr * hdr,int ring_page)443 ultra_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
444 {
445 void __iomem *hdr_start = ei_status.mem + ((ring_page - START_PG)<<8);
446
447 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem on */
448 #ifdef __BIG_ENDIAN
449 /* Officially this is what we are doing, but the readl() is faster */
450 /* unfortunately it isn't endian aware of the struct */
451 memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr));
452 hdr->count = le16_to_cpu(hdr->count);
453 #else
454 ((unsigned int*)hdr)[0] = readl(hdr_start);
455 #endif
456 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* shmem off */
457 }
458
459 /* Block input and output are easy on shared memory ethercards, the only
460 complication is when the ring buffer wraps. */
461
462 static void
ultra_block_input(struct net_device * dev,int count,struct sk_buff * skb,int ring_offset)463 ultra_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
464 {
465 void __iomem *xfer_start = ei_status.mem + ring_offset - (START_PG<<8);
466
467 /* Enable shared memory. */
468 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
469
470 if (ring_offset + count > ei_status.stop_page*256) {
471 /* We must wrap the input move. */
472 int semi_count = ei_status.stop_page*256 - ring_offset;
473 memcpy_fromio(skb->data, xfer_start, semi_count);
474 count -= semi_count;
475 memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count);
476 } else {
477 memcpy_fromio(skb->data, xfer_start, count);
478 }
479
480 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
481 }
482
483 static void
ultra_block_output(struct net_device * dev,int count,const unsigned char * buf,int start_page)484 ultra_block_output(struct net_device *dev, int count, const unsigned char *buf,
485 int start_page)
486 {
487 void __iomem *shmem = ei_status.mem + ((start_page - START_PG)<<8);
488
489 /* Enable shared memory. */
490 outb(ULTRA_MEMENB, dev->base_addr - ULTRA_NIC_OFFSET);
491
492 memcpy_toio(shmem, buf, count);
493
494 outb(0x00, dev->base_addr - ULTRA_NIC_OFFSET); /* Disable memory. */
495 }
496
497 /* The identical operations for programmed I/O cards.
498 The PIO model is trivial to use: the 16 bit start address is written
499 byte-sequentially to IOPA, with no intervening I/O operations, and the
500 data is read or written to the IOPD data port.
501 The only potential complication is that the address register is shared
502 and must be always be rewritten between each read/write direction change.
503 This is no problem for us, as the 8390 code ensures that we are single
504 threaded. */
ultra_pio_get_hdr(struct net_device * dev,struct e8390_pkt_hdr * hdr,int ring_page)505 static void ultra_pio_get_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
506 int ring_page)
507 {
508 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
509 outb(0x00, ioaddr + IOPA); /* Set the address, LSB first. */
510 outb(ring_page, ioaddr + IOPA);
511 insw(ioaddr + IOPD, hdr, sizeof(struct e8390_pkt_hdr)>>1);
512 }
513
ultra_pio_input(struct net_device * dev,int count,struct sk_buff * skb,int ring_offset)514 static void ultra_pio_input(struct net_device *dev, int count,
515 struct sk_buff *skb, int ring_offset)
516 {
517 int ioaddr = dev->base_addr - ULTRA_NIC_OFFSET; /* ASIC addr */
518 char *buf = skb->data;
519
520 /* For now set the address again, although it should already be correct. */
521 outb(ring_offset, ioaddr + IOPA); /* Set the address, LSB first. */
522 outb(ring_offset >> 8, ioaddr + IOPA);
523 /* We know skbuffs are padded to at least word alignment. */
524 insw(ioaddr + IOPD, buf, (count+1)>>1);
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. */
ultra_init_module(void)575 static int __init ultra_init_module(void)
576 {
577 struct net_device *dev;
578 int this_dev, found = 0;
579
580 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
581 if (io[this_dev] == 0) {
582 if (this_dev != 0) break; /* only autoprobe 1st one */
583 printk(KERN_NOTICE "smc-ultra.c: Presently autoprobing (not recommended) for a single card.\n");
584 }
585 dev = alloc_ei_netdev();
586 if (!dev)
587 break;
588 dev->irq = irq[this_dev];
589 dev->base_addr = io[this_dev];
590 if (do_ultra_probe(dev) == 0) {
591 dev_ultra[found++] = dev;
592 continue;
593 }
594 free_netdev(dev);
595 printk(KERN_WARNING "smc-ultra.c: No SMC Ultra card found (i/o = 0x%x).\n", io[this_dev]);
596 break;
597 }
598 if (found)
599 return 0;
600 return -ENXIO;
601 }
602 module_init(ultra_init_module);
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
ultra_cleanup_module(void)616 static void __exit ultra_cleanup_module(void)
617 {
618 int this_dev;
619
620 for (this_dev = 0; this_dev < MAX_ULTRA_CARDS; this_dev++) {
621 struct net_device *dev = dev_ultra[this_dev];
622 if (dev) {
623 unregister_netdev(dev);
624 cleanup_card(dev);
625 free_netdev(dev);
626 }
627 }
628 }
629 module_exit(ultra_cleanup_module);
630 #endif /* MODULE */
631