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[pv_ops_mirror.git] / drivers / net / ne-h8300.c
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1 /* ne-h8300.c: A NE2000 clone on H8/300 driver for linux. */
2 /*
3 original ne.c
4 Written 1992-94 by Donald Becker.
6 Copyright 1993 United States Government as represented by the
7 Director, National Security Agency.
9 This software may be used and distributed according to the terms
10 of the GNU General Public License, incorporated herein by reference.
12 The author may be reached as becker@scyld.com, or C/O
13 Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
15 H8/300 modified
16 Yoshinori Sato <ysato@users.sourceforge.jp>
19 static const char version1[] =
20 "ne-h8300.c:v1.00 2004/04/11 ysato\n";
22 #include <linux/module.h>
23 #include <linux/kernel.h>
24 #include <linux/errno.h>
25 #include <linux/init.h>
26 #include <linux/interrupt.h>
27 #include <linux/delay.h>
28 #include <linux/netdevice.h>
29 #include <linux/etherdevice.h>
30 #include <linux/jiffies.h>
32 #include <asm/system.h>
33 #include <asm/io.h>
34 #include <asm/irq.h>
36 #define EI_SHIFT(x) (ei_local->reg_offset[x])
38 #include "8390.h"
40 #define DRV_NAME "ne-h8300"
42 /* Some defines that people can play with if so inclined. */
44 /* Do we perform extra sanity checks on stuff ? */
45 /* #define NE_SANITY_CHECK */
47 /* Do we implement the read before write bugfix ? */
48 /* #define NE_RW_BUGFIX */
50 /* Do we have a non std. amount of memory? (in units of 256 byte pages) */
51 /* #define PACKETBUF_MEMSIZE 0x40 */
53 /* A zero-terminated list of I/O addresses to be probed at boot. */
55 /* ---- No user-serviceable parts below ---- */
57 static const char version[] =
58 "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
60 #include "lib8390.c"
62 #define NE_BASE (dev->base_addr)
63 #define NE_CMD 0x00
64 #define NE_DATAPORT (ei_status.word16?0x20:0x10) /* NatSemi-defined port window offset. */
65 #define NE_RESET (ei_status.word16?0x3f:0x1f) /* Issue a read to reset, a write to clear. */
66 #define NE_IO_EXTENT (ei_status.word16?0x40:0x20)
68 #define NESM_START_PG 0x40 /* First page of TX buffer */
69 #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */
71 static int ne_probe1(struct net_device *dev, int ioaddr);
73 static int ne_open(struct net_device *dev);
74 static int ne_close(struct net_device *dev);
76 static void ne_reset_8390(struct net_device *dev);
77 static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
78 int ring_page);
79 static void ne_block_input(struct net_device *dev, int count,
80 struct sk_buff *skb, int ring_offset);
81 static void ne_block_output(struct net_device *dev, const int count,
82 const unsigned char *buf, const int start_page);
85 static u32 reg_offset[16];
87 static int __init init_reg_offset(struct net_device *dev,unsigned long base_addr)
89 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
90 int i;
91 unsigned char bus_width;
93 bus_width = *(volatile unsigned char *)ABWCR;
94 bus_width &= 1 << ((base_addr >> 21) & 7);
96 for (i = 0; i < ARRAY_SIZE(reg_offset); i++)
97 if (bus_width == 0)
98 reg_offset[i] = i * 2 + 1;
99 else
100 reg_offset[i] = i;
102 ei_local->reg_offset = reg_offset;
103 return 0;
106 static int __initdata h8300_ne_count = 0;
107 #ifdef CONFIG_H8300H_H8MAX
108 static unsigned long __initdata h8300_ne_base[] = { 0x800600 };
109 static int h8300_ne_irq[] = {EXT_IRQ4};
110 #endif
111 #ifdef CONFIG_H8300H_AKI3068NET
112 static unsigned long __initdata h8300_ne_base[] = { 0x200000 };
113 static int h8300_ne_irq[] = {EXT_IRQ5};
114 #endif
116 static inline int init_dev(struct net_device *dev)
118 if (h8300_ne_count < ARRAY_SIZE(h8300_ne_base)) {
119 dev->base_addr = h8300_ne_base[h8300_ne_count];
120 dev->irq = h8300_ne_irq[h8300_ne_count];
121 h8300_ne_count++;
122 return 0;
123 } else
124 return -ENODEV;
127 /* Probe for various non-shared-memory ethercards.
129 NEx000-clone boards have a Station Address PROM (SAPROM) in the packet
130 buffer memory space. NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of
131 the SAPROM, while other supposed NE2000 clones must be detected by their
132 SA prefix.
134 Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
135 mode results in doubled values, which can be detected and compensated for.
137 The probe is also responsible for initializing the card and filling
138 in the 'dev' and 'ei_status' structures.
140 We use the minimum memory size for some ethercard product lines, iff we can't
141 distinguish models. You can increase the packet buffer size by setting
142 PACKETBUF_MEMSIZE. Reported Cabletron packet buffer locations are:
143 E1010 starts at 0x100 and ends at 0x2000.
144 E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory")
145 E2010 starts at 0x100 and ends at 0x4000.
146 E2010-x starts at 0x100 and ends at 0xffff. */
148 static int __init do_ne_probe(struct net_device *dev)
150 unsigned int base_addr = dev->base_addr;
152 /* First check any supplied i/o locations. User knows best. <cough> */
153 if (base_addr > 0x1ff) /* Check a single specified location. */
154 return ne_probe1(dev, base_addr);
155 else if (base_addr != 0) /* Don't probe at all. */
156 return -ENXIO;
158 return -ENODEV;
161 static void cleanup_card(struct net_device *dev)
163 free_irq(dev->irq, dev);
164 release_region(dev->base_addr, NE_IO_EXTENT);
167 #ifndef MODULE
168 struct net_device * __init ne_probe(int unit)
170 struct net_device *dev = ____alloc_ei_netdev(0);
171 int err;
173 if (!dev)
174 return ERR_PTR(-ENOMEM);
176 if (init_dev(dev))
177 return ERR_PTR(-ENODEV);
179 sprintf(dev->name, "eth%d", unit);
180 netdev_boot_setup_check(dev);
182 err = init_reg_offset(dev, dev->base_addr);
183 if (err)
184 goto out;
186 err = do_ne_probe(dev);
187 if (err)
188 goto out;
189 return dev;
190 out:
191 free_netdev(dev);
192 return ERR_PTR(err);
194 #endif
196 static int __init ne_probe1(struct net_device *dev, int ioaddr)
198 int i;
199 unsigned char SA_prom[16];
200 int wordlength = 2;
201 const char *name = NULL;
202 int start_page, stop_page;
203 int reg0, ret;
204 static unsigned version_printed;
205 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
206 unsigned char bus_width;
207 DECLARE_MAC_BUF(mac);
209 if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME))
210 return -EBUSY;
212 reg0 = inb_p(ioaddr);
213 if (reg0 == 0xFF) {
214 ret = -ENODEV;
215 goto err_out;
218 /* Do a preliminary verification that we have a 8390. */
220 int regd;
221 outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
222 regd = inb_p(ioaddr + EI_SHIFT(0x0d));
223 outb_p(0xff, ioaddr + EI_SHIFT(0x0d));
224 outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
225 inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
226 if (inb_p(ioaddr + EN0_COUNTER0) != 0) {
227 outb_p(reg0, ioaddr + EI_SHIFT(0));
228 outb_p(regd, ioaddr + EI_SHIFT(0x0d)); /* Restore the old values. */
229 ret = -ENODEV;
230 goto err_out;
234 if (ei_debug && version_printed++ == 0)
235 printk(KERN_INFO "%s", version1);
237 printk(KERN_INFO "NE*000 ethercard probe at %08x:", ioaddr);
239 /* Read the 16 bytes of station address PROM.
240 We must first initialize registers, similar to NS8390_init(eifdev, 0).
241 We can't reliably read the SAPROM address without this.
242 (I learned the hard way!). */
244 struct {unsigned char value, offset; } program_seq[] =
246 {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
247 {0x48, EN0_DCFG}, /* Set byte-wide (0x48) access. */
248 {0x00, EN0_RCNTLO}, /* Clear the count regs. */
249 {0x00, EN0_RCNTHI},
250 {0x00, EN0_IMR}, /* Mask completion irq. */
251 {0xFF, EN0_ISR},
252 {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */
253 {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */
254 {32, EN0_RCNTLO},
255 {0x00, EN0_RCNTHI},
256 {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */
257 {0x00, EN0_RSARHI},
258 {E8390_RREAD+E8390_START, E8390_CMD},
261 for (i = 0; i < ARRAY_SIZE(program_seq); i++)
262 outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
265 bus_width = *(volatile unsigned char *)ABWCR;
266 bus_width &= 1 << ((ioaddr >> 21) & 7);
267 ei_status.word16 = (bus_width == 0); /* temporary setting */
268 for(i = 0; i < 16 /*sizeof(SA_prom)*/; i++) {
269 SA_prom[i] = inb_p(ioaddr + NE_DATAPORT);
270 inb_p(ioaddr + NE_DATAPORT); /* dummy read */
273 start_page = NESM_START_PG;
274 stop_page = NESM_STOP_PG;
276 if (bus_width)
277 wordlength = 1;
278 else
279 outb_p(0x49, ioaddr + EN0_DCFG);
281 /* Set up the rest of the parameters. */
282 name = (wordlength == 2) ? "NE2000" : "NE1000";
284 if (! dev->irq) {
285 printk(" failed to detect IRQ line.\n");
286 ret = -EAGAIN;
287 goto err_out;
290 /* Snarf the interrupt now. There's no point in waiting since we cannot
291 share and the board will usually be enabled. */
292 ret = request_irq(dev->irq, __ei_interrupt, 0, name, dev);
293 if (ret) {
294 printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret);
295 goto err_out;
298 dev->base_addr = ioaddr;
300 for(i = 0; i < ETHER_ADDR_LEN; i++)
301 dev->dev_addr[i] = SA_prom[i];
302 printk(" %s\n", print_mac(mac, dev->dev_addr));
304 printk("%s: %s found at %#x, using IRQ %d.\n",
305 dev->name, name, ioaddr, dev->irq);
307 ei_status.name = name;
308 ei_status.tx_start_page = start_page;
309 ei_status.stop_page = stop_page;
310 ei_status.word16 = (wordlength == 2);
312 ei_status.rx_start_page = start_page + TX_PAGES;
313 #ifdef PACKETBUF_MEMSIZE
314 /* Allow the packet buffer size to be overridden by know-it-alls. */
315 ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
316 #endif
318 ei_status.reset_8390 = &ne_reset_8390;
319 ei_status.block_input = &ne_block_input;
320 ei_status.block_output = &ne_block_output;
321 ei_status.get_8390_hdr = &ne_get_8390_hdr;
322 ei_status.priv = 0;
323 dev->open = &ne_open;
324 dev->stop = &ne_close;
325 #ifdef CONFIG_NET_POLL_CONTROLLER
326 dev->poll_controller = __ei_poll;
327 #endif
328 __NS8390_init(dev, 0);
330 ret = register_netdev(dev);
331 if (ret)
332 goto out_irq;
333 return 0;
334 out_irq:
335 free_irq(dev->irq, dev);
336 err_out:
337 release_region(ioaddr, NE_IO_EXTENT);
338 return ret;
341 static int ne_open(struct net_device *dev)
343 __ei_open(dev);
344 return 0;
347 static int ne_close(struct net_device *dev)
349 if (ei_debug > 1)
350 printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
351 __ei_close(dev);
352 return 0;
355 /* Hard reset the card. This used to pause for the same period that a
356 8390 reset command required, but that shouldn't be necessary. */
358 static void ne_reset_8390(struct net_device *dev)
360 unsigned long reset_start_time = jiffies;
361 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
363 if (ei_debug > 1)
364 printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies);
366 /* DON'T change these to inb_p/outb_p or reset will fail on clones. */
367 outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
369 ei_status.txing = 0;
370 ei_status.dmaing = 0;
372 /* This check _should_not_ be necessary, omit eventually. */
373 while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0)
374 if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
375 printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name);
376 break;
378 outb_p(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */
381 /* Grab the 8390 specific header. Similar to the block_input routine, but
382 we don't need to be concerned with ring wrap as the header will be at
383 the start of a page, so we optimize accordingly. */
385 static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
387 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
388 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
390 if (ei_status.dmaing)
392 printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr "
393 "[DMAstat:%d][irqlock:%d].\n",
394 dev->name, ei_status.dmaing, ei_status.irqlock);
395 return;
398 ei_status.dmaing |= 0x01;
399 outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD);
400 outb_p(sizeof(struct e8390_pkt_hdr), NE_BASE + EN0_RCNTLO);
401 outb_p(0, NE_BASE + EN0_RCNTHI);
402 outb_p(0, NE_BASE + EN0_RSARLO); /* On page boundary */
403 outb_p(ring_page, NE_BASE + EN0_RSARHI);
404 outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
406 if (ei_status.word16) {
407 int len;
408 unsigned short *p = (unsigned short *)hdr;
409 for (len = sizeof(struct e8390_pkt_hdr)>>1; len > 0; len--)
410 *p++ = inw(NE_BASE + NE_DATAPORT);
411 } else
412 insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr));
414 outb_p(ENISR_RDC, NE_BASE + EN0_ISR); /* Ack intr. */
415 ei_status.dmaing &= ~0x01;
417 le16_to_cpus(&hdr->count);
420 /* Block input and output, similar to the Crynwr packet driver. If you
421 are porting to a new ethercard, look at the packet driver source for hints.
422 The NEx000 doesn't share the on-board packet memory -- you have to put
423 the packet out through the "remote DMA" dataport using outb. */
425 static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
427 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
428 #ifdef NE_SANITY_CHECK
429 int xfer_count = count;
430 #endif
431 char *buf = skb->data;
433 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
434 if (ei_status.dmaing)
436 printk(KERN_EMERG "%s: DMAing conflict in ne_block_input "
437 "[DMAstat:%d][irqlock:%d].\n",
438 dev->name, ei_status.dmaing, ei_status.irqlock);
439 return;
441 ei_status.dmaing |= 0x01;
442 outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD);
443 outb_p(count & 0xff, NE_BASE + EN0_RCNTLO);
444 outb_p(count >> 8, NE_BASE + EN0_RCNTHI);
445 outb_p(ring_offset & 0xff, NE_BASE + EN0_RSARLO);
446 outb_p(ring_offset >> 8, NE_BASE + EN0_RSARHI);
447 outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
448 if (ei_status.word16)
450 int len;
451 unsigned short *p = (unsigned short *)buf;
452 for (len = count>>1; len > 0; len--)
453 *p++ = inw(NE_BASE + NE_DATAPORT);
454 if (count & 0x01)
456 buf[count-1] = inb(NE_BASE + NE_DATAPORT);
457 #ifdef NE_SANITY_CHECK
458 xfer_count++;
459 #endif
461 } else {
462 insb(NE_BASE + NE_DATAPORT, buf, count);
465 #ifdef NE_SANITY_CHECK
466 /* This was for the ALPHA version only, but enough people have
467 been encountering problems so it is still here. If you see
468 this message you either 1) have a slightly incompatible clone
469 or 2) have noise/speed problems with your bus. */
471 if (ei_debug > 1)
473 /* DMA termination address check... */
474 int addr, tries = 20;
475 do {
476 /* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
477 -- it's broken for Rx on some cards! */
478 int high = inb_p(NE_BASE + EN0_RSARHI);
479 int low = inb_p(NE_BASE + EN0_RSARLO);
480 addr = (high << 8) + low;
481 if (((ring_offset + xfer_count) & 0xff) == low)
482 break;
483 } while (--tries > 0);
484 if (tries <= 0)
485 printk(KERN_WARNING "%s: RX transfer address mismatch,"
486 "%#4.4x (expected) vs. %#4.4x (actual).\n",
487 dev->name, ring_offset + xfer_count, addr);
489 #endif
490 outb_p(ENISR_RDC, NE_BASE + EN0_ISR); /* Ack intr. */
491 ei_status.dmaing &= ~0x01;
494 static void ne_block_output(struct net_device *dev, int count,
495 const unsigned char *buf, const int start_page)
497 struct ei_device *ei_local = (struct ei_device *) netdev_priv(dev);
498 unsigned long dma_start;
499 #ifdef NE_SANITY_CHECK
500 int retries = 0;
501 #endif
503 /* Round the count up for word writes. Do we need to do this?
504 What effect will an odd byte count have on the 8390?
505 I should check someday. */
507 if (ei_status.word16 && (count & 0x01))
508 count++;
510 /* This *shouldn't* happen. If it does, it's the last thing you'll see */
511 if (ei_status.dmaing)
513 printk(KERN_EMERG "%s: DMAing conflict in ne_block_output."
514 "[DMAstat:%d][irqlock:%d]\n",
515 dev->name, ei_status.dmaing, ei_status.irqlock);
516 return;
518 ei_status.dmaing |= 0x01;
519 /* We should already be in page 0, but to be safe... */
520 outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, NE_BASE + NE_CMD);
522 #ifdef NE_SANITY_CHECK
523 retry:
524 #endif
526 #ifdef NE8390_RW_BUGFIX
527 /* Handle the read-before-write bug the same way as the
528 Crynwr packet driver -- the NatSemi method doesn't work.
529 Actually this doesn't always work either, but if you have
530 problems with your NEx000 this is better than nothing! */
532 outb_p(0x42, NE_BASE + EN0_RCNTLO);
533 outb_p(0x00, NE_BASE + EN0_RCNTHI);
534 outb_p(0x42, NE_BASE + EN0_RSARLO);
535 outb_p(0x00, NE_BASE + EN0_RSARHI);
536 outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
537 /* Make certain that the dummy read has occurred. */
538 udelay(6);
539 #endif
541 outb_p(ENISR_RDC, NE_BASE + EN0_ISR);
543 /* Now the normal output. */
544 outb_p(count & 0xff, NE_BASE + EN0_RCNTLO);
545 outb_p(count >> 8, NE_BASE + EN0_RCNTHI);
546 outb_p(0x00, NE_BASE + EN0_RSARLO);
547 outb_p(start_page, NE_BASE + EN0_RSARHI);
549 outb_p(E8390_RWRITE+E8390_START, NE_BASE + NE_CMD);
550 if (ei_status.word16) {
551 int len;
552 unsigned short *p = (unsigned short *)buf;
553 for (len = count>>1; len > 0; len--)
554 outw(*p++, NE_BASE + NE_DATAPORT);
555 } else {
556 outsb(NE_BASE + NE_DATAPORT, buf, count);
559 dma_start = jiffies;
561 #ifdef NE_SANITY_CHECK
562 /* This was for the ALPHA version only, but enough people have
563 been encountering problems so it is still here. */
565 if (ei_debug > 1)
567 /* DMA termination address check... */
568 int addr, tries = 20;
569 do {
570 int high = inb_p(NE_BASE + EN0_RSARHI);
571 int low = inb_p(NE_BASE + EN0_RSARLO);
572 addr = (high << 8) + low;
573 if ((start_page << 8) + count == addr)
574 break;
575 } while (--tries > 0);
577 if (tries <= 0)
579 printk(KERN_WARNING "%s: Tx packet transfer address mismatch,"
580 "%#4.4x (expected) vs. %#4.4x (actual).\n",
581 dev->name, (start_page << 8) + count, addr);
582 if (retries++ == 0)
583 goto retry;
586 #endif
588 while ((inb_p(NE_BASE + EN0_ISR) & ENISR_RDC) == 0)
589 if (time_after(jiffies, dma_start + 2*HZ/100)) { /* 20ms */
590 printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
591 ne_reset_8390(dev);
592 __NS8390_init(dev,1);
593 break;
596 outb_p(ENISR_RDC, NE_BASE + EN0_ISR); /* Ack intr. */
597 ei_status.dmaing &= ~0x01;
598 return;
602 #ifdef MODULE
603 #define MAX_NE_CARDS 1 /* Max number of NE cards per module */
604 static struct net_device *dev_ne[MAX_NE_CARDS];
605 static int io[MAX_NE_CARDS];
606 static int irq[MAX_NE_CARDS];
607 static int bad[MAX_NE_CARDS]; /* 0xbad = bad sig or no reset ack */
609 module_param_array(io, int, NULL, 0);
610 module_param_array(irq, int, NULL, 0);
611 module_param_array(bad, int, NULL, 0);
612 MODULE_PARM_DESC(io, "I/O base address(es)");
613 MODULE_PARM_DESC(irq, "IRQ number(s)");
614 MODULE_DESCRIPTION("H8/300 NE2000 Ethernet driver");
615 MODULE_LICENSE("GPL");
617 /* This is set up so that no ISA autoprobe takes place. We can't guarantee
618 that the ne2k probe is the last 8390 based probe to take place (as it
619 is at boot) and so the probe will get confused by any other 8390 cards.
620 ISA device autoprobes on a running machine are not recommended anyway. */
622 int init_module(void)
624 int this_dev, found = 0;
625 int err;
627 for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
628 struct net_device *dev = ____alloc_ei_netdev(0);
629 if (!dev)
630 break;
631 if (io[this_dev]) {
632 dev->irq = irq[this_dev];
633 dev->mem_end = bad[this_dev];
634 dev->base_addr = io[this_dev];
635 } else {
636 dev->base_addr = h8300_ne_base[this_dev];
637 dev->irq = h8300_ne_irq[this_dev];
639 err = init_reg_offset(dev, dev->base_addr);
640 if (!err) {
641 if (do_ne_probe(dev) == 0) {
642 dev_ne[found++] = dev;
643 continue;
646 free_netdev(dev);
647 if (found)
648 break;
649 if (io[this_dev] != 0)
650 printk(KERN_WARNING "ne.c: No NE*000 card found at i/o = %#x\n", dev->base_addr);
651 else
652 printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n");
653 return -ENXIO;
655 if (found)
656 return 0;
657 return -ENODEV;
660 void cleanup_module(void)
662 int this_dev;
664 for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
665 struct net_device *dev = dev_ne[this_dev];
666 if (dev) {
667 unregister_netdev(dev);
668 cleanup_card(dev);
669 free_netdev(dev);
673 #endif /* MODULE */