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1da177e4 LT |
1 | /* wd.c: A WD80x3 ethernet driver for linux. */ |
2 | /* | |
3 | Written 1993-94 by Donald Becker. | |
4 | ||
5 | Copyright 1993 United States Government as represented by the | |
6 | Director, National Security Agency. | |
7 | ||
8 | This software may be used and distributed according to the terms | |
9 | of the GNU General Public License, incorporated herein by reference. | |
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 is a driver for WD8003 and WD8013 "compatible" ethercards. | |
17 | ||
18 | Thanks to Russ Nelson (nelson@crnwyr.com) for loaning me a WD8013. | |
19 | ||
20 | Changelog: | |
21 | ||
22 | Paul Gortmaker : multiple card support for module users, support | |
23 | for non-standard memory sizes. | |
24 | ||
25 | ||
26 | */ | |
27 | ||
28 | static const char version[] = | |
29 | "wd.c:v1.10 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n"; | |
30 | ||
31 | #include <linux/module.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/errno.h> | |
34 | #include <linux/string.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/interrupt.h> | |
37 | #include <linux/delay.h> | |
38 | #include <linux/netdevice.h> | |
39 | #include <linux/etherdevice.h> | |
40 | ||
41 | #include <asm/io.h> | |
42 | #include <asm/system.h> | |
43 | ||
44 | #include "8390.h" | |
45 | ||
46 | #define DRV_NAME "wd" | |
47 | ||
48 | /* A zero-terminated list of I/O addresses to be probed. */ | |
49 | static unsigned int wd_portlist[] __initdata = | |
50 | {0x300, 0x280, 0x380, 0x240, 0}; | |
51 | ||
52 | static int wd_probe1(struct net_device *dev, int ioaddr); | |
53 | ||
54 | static int wd_open(struct net_device *dev); | |
55 | static void wd_reset_8390(struct net_device *dev); | |
56 | static void wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, | |
57 | int ring_page); | |
58 | static void wd_block_input(struct net_device *dev, int count, | |
59 | struct sk_buff *skb, int ring_offset); | |
60 | static void wd_block_output(struct net_device *dev, int count, | |
61 | const unsigned char *buf, int start_page); | |
62 | static int wd_close(struct net_device *dev); | |
63 | ||
6aa20a22 | 64 | |
1da177e4 LT |
65 | #define WD_START_PG 0x00 /* First page of TX buffer */ |
66 | #define WD03_STOP_PG 0x20 /* Last page +1 of RX ring */ | |
67 | #define WD13_STOP_PG 0x40 /* Last page +1 of RX ring */ | |
68 | ||
69 | #define WD_CMDREG 0 /* Offset to ASIC command register. */ | |
70 | #define WD_RESET 0x80 /* Board reset, in WD_CMDREG. */ | |
71 | #define WD_MEMENB 0x40 /* Enable the shared memory. */ | |
72 | #define WD_CMDREG5 5 /* Offset to 16-bit-only ASIC register 5. */ | |
73 | #define ISA16 0x80 /* Enable 16 bit access from the ISA bus. */ | |
74 | #define NIC16 0x40 /* Enable 16 bit access from the 8390. */ | |
75 | #define WD_NIC_OFFSET 16 /* Offset to the 8390 from the base_addr. */ | |
76 | #define WD_IO_EXTENT 32 | |
77 | ||
6aa20a22 | 78 | |
1da177e4 LT |
79 | /* Probe for the WD8003 and WD8013. These cards have the station |
80 | address PROM at I/O ports <base>+8 to <base>+13, with a checksum | |
81 | following. A Soundblaster can have the same checksum as an WDethercard, | |
82 | so we have an extra exclusionary check for it. | |
83 | ||
84 | The wd_probe1() routine initializes the card and fills the | |
85 | station address field. */ | |
86 | ||
87 | static int __init do_wd_probe(struct net_device *dev) | |
88 | { | |
89 | int i; | |
90 | struct resource *r; | |
91 | int base_addr = dev->base_addr; | |
92 | int irq = dev->irq; | |
93 | int mem_start = dev->mem_start; | |
94 | int mem_end = dev->mem_end; | |
95 | ||
96 | SET_MODULE_OWNER(dev); | |
97 | ||
98 | if (base_addr > 0x1ff) { /* Check a user specified location. */ | |
99 | r = request_region(base_addr, WD_IO_EXTENT, "wd-probe"); | |
100 | if ( r == NULL) | |
101 | return -EBUSY; | |
102 | i = wd_probe1(dev, base_addr); | |
6aa20a22 | 103 | if (i != 0) |
1da177e4 LT |
104 | release_region(base_addr, WD_IO_EXTENT); |
105 | else | |
106 | r->name = dev->name; | |
107 | return i; | |
108 | } | |
109 | else if (base_addr != 0) /* Don't probe at all. */ | |
110 | return -ENXIO; | |
111 | ||
112 | for (i = 0; wd_portlist[i]; i++) { | |
113 | int ioaddr = wd_portlist[i]; | |
114 | r = request_region(ioaddr, WD_IO_EXTENT, "wd-probe"); | |
115 | if (r == NULL) | |
116 | continue; | |
117 | if (wd_probe1(dev, ioaddr) == 0) { | |
118 | r->name = dev->name; | |
119 | return 0; | |
120 | } | |
121 | release_region(ioaddr, WD_IO_EXTENT); | |
122 | dev->irq = irq; | |
123 | dev->mem_start = mem_start; | |
124 | dev->mem_end = mem_end; | |
125 | } | |
126 | ||
127 | return -ENODEV; | |
128 | } | |
129 | ||
1da177e4 LT |
130 | #ifndef MODULE |
131 | struct net_device * __init wd_probe(int unit) | |
132 | { | |
133 | struct net_device *dev = alloc_ei_netdev(); | |
134 | int err; | |
135 | ||
136 | if (!dev) | |
137 | return ERR_PTR(-ENOMEM); | |
138 | ||
139 | sprintf(dev->name, "eth%d", unit); | |
140 | netdev_boot_setup_check(dev); | |
141 | ||
142 | err = do_wd_probe(dev); | |
143 | if (err) | |
144 | goto out; | |
1da177e4 | 145 | return dev; |
1da177e4 LT |
146 | out: |
147 | free_netdev(dev); | |
148 | return ERR_PTR(err); | |
149 | } | |
150 | #endif | |
151 | ||
152 | static int __init wd_probe1(struct net_device *dev, int ioaddr) | |
153 | { | |
154 | int i; | |
b1fc5505 | 155 | int err; |
1da177e4 LT |
156 | int checksum = 0; |
157 | int ancient = 0; /* An old card without config registers. */ | |
158 | int word16 = 0; /* 0 = 8 bit, 1 = 16 bit */ | |
159 | const char *model_name; | |
160 | static unsigned version_printed; | |
161 | ||
162 | for (i = 0; i < 8; i++) | |
163 | checksum += inb(ioaddr + 8 + i); | |
164 | if (inb(ioaddr + 8) == 0xff /* Extra check to avoid soundcard. */ | |
165 | || inb(ioaddr + 9) == 0xff | |
166 | || (checksum & 0xff) != 0xFF) | |
167 | return -ENODEV; | |
168 | ||
169 | /* Check for semi-valid mem_start/end values if supplied. */ | |
170 | if ((dev->mem_start % 0x2000) || (dev->mem_end % 0x2000)) { | |
171 | printk(KERN_WARNING "wd.c: user supplied mem_start or mem_end not on 8kB boundary - ignored.\n"); | |
172 | dev->mem_start = 0; | |
173 | dev->mem_end = 0; | |
174 | } | |
175 | ||
176 | if (ei_debug && version_printed++ == 0) | |
177 | printk(version); | |
178 | ||
179 | printk("%s: WD80x3 at %#3x,", dev->name, ioaddr); | |
180 | for (i = 0; i < 6; i++) | |
181 | printk(" %2.2X", dev->dev_addr[i] = inb(ioaddr + 8 + i)); | |
182 | ||
183 | /* The following PureData probe code was contributed by | |
184 | Mike Jagdis <jaggy@purplet.demon.co.uk>. Puredata does software | |
185 | configuration differently from others so we have to check for them. | |
186 | This detects an 8 bit, 16 bit or dumb (Toshiba, jumpered) card. | |
187 | */ | |
188 | if (inb(ioaddr+0) == 'P' && inb(ioaddr+1) == 'D') { | |
189 | unsigned char reg5 = inb(ioaddr+5); | |
190 | ||
191 | switch (inb(ioaddr+2)) { | |
192 | case 0x03: word16 = 0; model_name = "PDI8023-8"; break; | |
193 | case 0x05: word16 = 0; model_name = "PDUC8023"; break; | |
194 | case 0x0a: word16 = 1; model_name = "PDI8023-16"; break; | |
195 | /* Either 0x01 (dumb) or they've released a new version. */ | |
196 | default: word16 = 0; model_name = "PDI8023"; break; | |
197 | } | |
198 | dev->mem_start = ((reg5 & 0x1c) + 0xc0) << 12; | |
199 | dev->irq = (reg5 & 0xe0) == 0xe0 ? 10 : (reg5 >> 5) + 1; | |
200 | } else { /* End of PureData probe */ | |
201 | /* This method of checking for a 16-bit board is borrowed from the | |
202 | we.c driver. A simpler method is just to look in ASIC reg. 0x03. | |
203 | I'm comparing the two method in alpha test to make certain they | |
204 | return the same result. */ | |
205 | /* Check for the old 8 bit board - it has register 0/8 aliasing. | |
206 | Do NOT check i>=6 here -- it hangs the old 8003 boards! */ | |
207 | for (i = 0; i < 6; i++) | |
208 | if (inb(ioaddr+i) != inb(ioaddr+8+i)) | |
209 | break; | |
210 | if (i >= 6) { | |
211 | ancient = 1; | |
212 | model_name = "WD8003-old"; | |
213 | word16 = 0; | |
214 | } else { | |
215 | int tmp = inb(ioaddr+1); /* fiddle with 16bit bit */ | |
216 | outb( tmp ^ 0x01, ioaddr+1 ); /* attempt to clear 16bit bit */ | |
217 | if (((inb( ioaddr+1) & 0x01) == 0x01) /* A 16 bit card */ | |
218 | && (tmp & 0x01) == 0x01 ) { /* In a 16 slot. */ | |
219 | int asic_reg5 = inb(ioaddr+WD_CMDREG5); | |
220 | /* Magic to set ASIC to word-wide mode. */ | |
221 | outb( NIC16 | (asic_reg5&0x1f), ioaddr+WD_CMDREG5); | |
222 | outb(tmp, ioaddr+1); | |
223 | model_name = "WD8013"; | |
224 | word16 = 1; /* We have a 16bit board here! */ | |
225 | } else { | |
226 | model_name = "WD8003"; | |
227 | word16 = 0; | |
228 | } | |
229 | outb(tmp, ioaddr+1); /* Restore original reg1 value. */ | |
230 | } | |
231 | #ifndef final_version | |
232 | if ( !ancient && (inb(ioaddr+1) & 0x01) != (word16 & 0x01)) | |
233 | printk("\nWD80?3: Bus width conflict, %d (probe) != %d (reg report).", | |
234 | word16 ? 16 : 8, (inb(ioaddr+1) & 0x01) ? 16 : 8); | |
235 | #endif | |
236 | } | |
237 | ||
238 | #if defined(WD_SHMEM) && WD_SHMEM > 0x80000 | |
239 | /* Allow a compile-time override. */ | |
240 | dev->mem_start = WD_SHMEM; | |
241 | #else | |
242 | if (dev->mem_start == 0) { | |
243 | /* Sanity and old 8003 check */ | |
244 | int reg0 = inb(ioaddr); | |
245 | if (reg0 == 0xff || reg0 == 0) { | |
246 | /* Future plan: this could check a few likely locations first. */ | |
247 | dev->mem_start = 0xd0000; | |
248 | printk(" assigning address %#lx", dev->mem_start); | |
249 | } else { | |
250 | int high_addr_bits = inb(ioaddr+WD_CMDREG5) & 0x1f; | |
251 | /* Some boards don't have the register 5 -- it returns 0xff. */ | |
252 | if (high_addr_bits == 0x1f || word16 == 0) | |
253 | high_addr_bits = 0x01; | |
254 | dev->mem_start = ((reg0&0x3f) << 13) + (high_addr_bits << 19); | |
255 | } | |
256 | } | |
257 | #endif | |
258 | ||
259 | /* The 8390 isn't at the base address -- the ASIC regs are there! */ | |
260 | dev->base_addr = ioaddr+WD_NIC_OFFSET; | |
261 | ||
262 | if (dev->irq < 2) { | |
263 | int irqmap[] = {9,3,5,7,10,11,15,4}; | |
264 | int reg1 = inb(ioaddr+1); | |
265 | int reg4 = inb(ioaddr+4); | |
266 | if (ancient || reg1 == 0xff) { /* Ack!! No way to read the IRQ! */ | |
267 | short nic_addr = ioaddr+WD_NIC_OFFSET; | |
268 | unsigned long irq_mask; | |
269 | ||
270 | /* We have an old-style ethercard that doesn't report its IRQ | |
271 | line. Do autoirq to find the IRQ line. Note that this IS NOT | |
272 | a reliable way to trigger an interrupt. */ | |
273 | outb_p(E8390_NODMA + E8390_STOP, nic_addr); | |
274 | outb(0x00, nic_addr+EN0_IMR); /* Disable all intrs. */ | |
6aa20a22 | 275 | |
1da177e4 LT |
276 | irq_mask = probe_irq_on(); |
277 | outb_p(0xff, nic_addr + EN0_IMR); /* Enable all interrupts. */ | |
278 | outb_p(0x00, nic_addr + EN0_RCNTLO); | |
279 | outb_p(0x00, nic_addr + EN0_RCNTHI); | |
280 | outb(E8390_RREAD+E8390_START, nic_addr); /* Trigger it... */ | |
281 | mdelay(20); | |
282 | dev->irq = probe_irq_off(irq_mask); | |
6aa20a22 | 283 | |
1da177e4 LT |
284 | outb_p(0x00, nic_addr+EN0_IMR); /* Mask all intrs. again. */ |
285 | ||
286 | if (ei_debug > 2) | |
287 | printk(" autoirq is %d", dev->irq); | |
288 | if (dev->irq < 2) | |
289 | dev->irq = word16 ? 10 : 5; | |
290 | } else | |
291 | dev->irq = irqmap[((reg4 >> 5) & 0x03) + (reg1 & 0x04)]; | |
292 | } else if (dev->irq == 2) /* Fixup bogosity: IRQ2 is really IRQ9 */ | |
293 | dev->irq = 9; | |
294 | ||
295 | /* Snarf the interrupt now. There's no point in waiting since we cannot | |
296 | share and the board will usually be enabled. */ | |
297 | i = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev); | |
298 | if (i) { | |
299 | printk (" unable to get IRQ %d.\n", dev->irq); | |
300 | return i; | |
301 | } | |
302 | ||
303 | /* OK, were are certain this is going to work. Setup the device. */ | |
304 | ei_status.name = model_name; | |
305 | ei_status.word16 = word16; | |
306 | ei_status.tx_start_page = WD_START_PG; | |
307 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
308 | ||
309 | /* Don't map in the shared memory until the board is actually opened. */ | |
310 | ||
311 | /* Some cards (eg WD8003EBT) can be jumpered for more (32k!) memory. */ | |
312 | if (dev->mem_end != 0) { | |
313 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
314 | ei_status.priv = dev->mem_end - dev->mem_start; | |
315 | } else { | |
316 | ei_status.stop_page = word16 ? WD13_STOP_PG : WD03_STOP_PG; | |
317 | dev->mem_end = dev->mem_start + (ei_status.stop_page - WD_START_PG)*256; | |
318 | ei_status.priv = (ei_status.stop_page - WD_START_PG)*256; | |
319 | } | |
320 | ||
321 | ei_status.mem = ioremap(dev->mem_start, ei_status.priv); | |
322 | if (!ei_status.mem) { | |
323 | free_irq(dev->irq, dev); | |
324 | return -ENOMEM; | |
325 | } | |
326 | ||
327 | printk(" %s, IRQ %d, shared memory at %#lx-%#lx.\n", | |
328 | model_name, dev->irq, dev->mem_start, dev->mem_end-1); | |
329 | ||
330 | ei_status.reset_8390 = &wd_reset_8390; | |
331 | ei_status.block_input = &wd_block_input; | |
332 | ei_status.block_output = &wd_block_output; | |
333 | ei_status.get_8390_hdr = &wd_get_8390_hdr; | |
334 | dev->open = &wd_open; | |
335 | dev->stop = &wd_close; | |
336 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
337 | dev->poll_controller = ei_poll; | |
338 | #endif | |
339 | NS8390_init(dev, 0); | |
340 | ||
341 | #if 1 | |
342 | /* Enable interrupt generation on softconfig cards -- M.U */ | |
343 | /* .. but possibly potentially unsafe - Donald */ | |
344 | if (inb(ioaddr+14) & 0x20) | |
345 | outb(inb(ioaddr+4)|0x80, ioaddr+4); | |
346 | #endif | |
347 | ||
b1fc5505 | 348 | err = register_netdev(dev); |
349 | if (err) | |
350 | free_irq(dev->irq, dev); | |
351 | return err; | |
1da177e4 LT |
352 | } |
353 | ||
354 | static int | |
355 | wd_open(struct net_device *dev) | |
356 | { | |
357 | int ioaddr = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
358 | ||
359 | /* Map in the shared memory. Always set register 0 last to remain | |
360 | compatible with very old boards. */ | |
361 | ei_status.reg0 = ((dev->mem_start>>13) & 0x3f) | WD_MEMENB; | |
362 | ei_status.reg5 = ((dev->mem_start>>19) & 0x1f) | NIC16; | |
363 | ||
364 | if (ei_status.word16) | |
365 | outb(ei_status.reg5, ioaddr+WD_CMDREG5); | |
366 | outb(ei_status.reg0, ioaddr); /* WD_CMDREG */ | |
367 | ||
368 | ei_open(dev); | |
369 | return 0; | |
370 | } | |
371 | ||
372 | static void | |
373 | wd_reset_8390(struct net_device *dev) | |
374 | { | |
375 | int wd_cmd_port = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
376 | ||
377 | outb(WD_RESET, wd_cmd_port); | |
378 | if (ei_debug > 1) printk("resetting the WD80x3 t=%lu...", jiffies); | |
379 | ei_status.txing = 0; | |
380 | ||
381 | /* Set up the ASIC registers, just in case something changed them. */ | |
382 | outb((((dev->mem_start>>13) & 0x3f)|WD_MEMENB), wd_cmd_port); | |
383 | if (ei_status.word16) | |
384 | outb(NIC16 | ((dev->mem_start>>19) & 0x1f), wd_cmd_port+WD_CMDREG5); | |
385 | ||
386 | if (ei_debug > 1) printk("reset done\n"); | |
387 | return; | |
388 | } | |
389 | ||
390 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
391 | we don't need to be concerned with ring wrap as the header will be at | |
392 | the start of a page, so we optimize accordingly. */ | |
393 | ||
394 | static void | |
395 | wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
396 | { | |
397 | ||
398 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
399 | void __iomem *hdr_start = ei_status.mem + ((ring_page - WD_START_PG)<<8); | |
400 | ||
401 | /* We'll always get a 4 byte header read followed by a packet read, so | |
402 | we enable 16 bit mode before the header, and disable after the body. */ | |
403 | if (ei_status.word16) | |
404 | outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
405 | ||
406 | #ifdef __BIG_ENDIAN | |
407 | /* Officially this is what we are doing, but the readl() is faster */ | |
408 | /* unfortunately it isn't endian aware of the struct */ | |
409 | memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); | |
410 | hdr->count = le16_to_cpu(hdr->count); | |
411 | #else | |
412 | ((unsigned int*)hdr)[0] = readl(hdr_start); | |
413 | #endif | |
414 | } | |
415 | ||
416 | /* Block input and output are easy on shared memory ethercards, and trivial | |
417 | on the Western digital card where there is no choice of how to do it. | |
418 | The only complications are that the ring buffer wraps, and need to map | |
419 | switch between 8- and 16-bit modes. */ | |
420 | ||
421 | static void | |
422 | wd_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
423 | { | |
424 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
425 | unsigned long offset = ring_offset - (WD_START_PG<<8); | |
426 | void __iomem *xfer_start = ei_status.mem + offset; | |
427 | ||
428 | if (offset + count > ei_status.priv) { | |
429 | /* We must wrap the input move. */ | |
430 | int semi_count = ei_status.priv - offset; | |
431 | memcpy_fromio(skb->data, xfer_start, semi_count); | |
432 | count -= semi_count; | |
433 | memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); | |
434 | } else { | |
435 | /* Packet is in one chunk -- we can copy + cksum. */ | |
4ec03116 | 436 | memcpy_fromio(skb->data, xfer_start, count); |
1da177e4 LT |
437 | } |
438 | ||
439 | /* Turn off 16 bit access so that reboot works. ISA brain-damage */ | |
440 | if (ei_status.word16) | |
441 | outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
442 | } | |
443 | ||
444 | static void | |
445 | wd_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
446 | int start_page) | |
447 | { | |
448 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
449 | void __iomem *shmem = ei_status.mem + ((start_page - WD_START_PG)<<8); | |
450 | ||
451 | ||
452 | if (ei_status.word16) { | |
453 | /* Turn on and off 16 bit access so that reboot works. */ | |
454 | outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
455 | memcpy_toio(shmem, buf, count); | |
456 | outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
457 | } else | |
458 | memcpy_toio(shmem, buf, count); | |
459 | } | |
460 | ||
461 | ||
462 | static int | |
463 | wd_close(struct net_device *dev) | |
464 | { | |
465 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
466 | ||
467 | if (ei_debug > 1) | |
468 | printk("%s: Shutting down ethercard.\n", dev->name); | |
469 | ei_close(dev); | |
470 | ||
471 | /* Change from 16-bit to 8-bit shared memory so reboot works. */ | |
472 | if (ei_status.word16) | |
473 | outb(ei_status.reg5, wd_cmdreg + WD_CMDREG5 ); | |
474 | ||
475 | /* And disable the shared memory. */ | |
476 | outb(ei_status.reg0 & ~WD_MEMENB, wd_cmdreg); | |
477 | ||
478 | return 0; | |
479 | } | |
480 | ||
6aa20a22 | 481 | |
1da177e4 LT |
482 | #ifdef MODULE |
483 | #define MAX_WD_CARDS 4 /* Max number of wd cards per module */ | |
484 | static struct net_device *dev_wd[MAX_WD_CARDS]; | |
485 | static int io[MAX_WD_CARDS]; | |
486 | static int irq[MAX_WD_CARDS]; | |
487 | static int mem[MAX_WD_CARDS]; | |
488 | static int mem_end[MAX_WD_CARDS]; /* for non std. mem size */ | |
489 | ||
490 | module_param_array(io, int, NULL, 0); | |
491 | module_param_array(irq, int, NULL, 0); | |
492 | module_param_array(mem, int, NULL, 0); | |
493 | module_param_array(mem_end, int, NULL, 0); | |
494 | MODULE_PARM_DESC(io, "I/O base address(es)"); | |
495 | MODULE_PARM_DESC(irq, "IRQ number(s) (ignored for PureData boards)"); | |
496 | MODULE_PARM_DESC(mem, "memory base address(es)(ignored for PureData boards)"); | |
497 | MODULE_PARM_DESC(mem_end, "memory end address(es)"); | |
498 | MODULE_DESCRIPTION("ISA Western Digital wd8003/wd8013 ; SMC Elite, Elite16 ethernet driver"); | |
499 | MODULE_LICENSE("GPL"); | |
500 | ||
501 | /* This is set up so that only a single autoprobe takes place per call. | |
502 | ISA device autoprobes on a running machine are not recommended. */ | |
5e5fa01d AM |
503 | |
504 | int __init init_module(void) | |
1da177e4 LT |
505 | { |
506 | struct net_device *dev; | |
507 | int this_dev, found = 0; | |
508 | ||
509 | for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) { | |
510 | if (io[this_dev] == 0) { | |
511 | if (this_dev != 0) break; /* only autoprobe 1st one */ | |
512 | printk(KERN_NOTICE "wd.c: Presently autoprobing (not recommended) for a single card.\n"); | |
513 | } | |
514 | dev = alloc_ei_netdev(); | |
515 | if (!dev) | |
516 | break; | |
517 | dev->irq = irq[this_dev]; | |
518 | dev->base_addr = io[this_dev]; | |
519 | dev->mem_start = mem[this_dev]; | |
520 | dev->mem_end = mem_end[this_dev]; | |
521 | if (do_wd_probe(dev) == 0) { | |
b1fc5505 | 522 | dev_wd[found++] = dev; |
523 | continue; | |
1da177e4 LT |
524 | } |
525 | free_netdev(dev); | |
526 | printk(KERN_WARNING "wd.c: No wd80x3 card found (i/o = 0x%x).\n", io[this_dev]); | |
527 | break; | |
528 | } | |
529 | if (found) | |
530 | return 0; | |
531 | return -ENXIO; | |
532 | } | |
533 | ||
64916f1e DV |
534 | static void cleanup_card(struct net_device *dev) |
535 | { | |
536 | free_irq(dev->irq, dev); | |
537 | release_region(dev->base_addr - WD_NIC_OFFSET, WD_IO_EXTENT); | |
538 | iounmap(ei_status.mem); | |
539 | } | |
540 | ||
afc8eb46 | 541 | void __exit |
1da177e4 LT |
542 | cleanup_module(void) |
543 | { | |
544 | int this_dev; | |
545 | ||
546 | for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) { | |
547 | struct net_device *dev = dev_wd[this_dev]; | |
548 | if (dev) { | |
549 | unregister_netdev(dev); | |
550 | cleanup_card(dev); | |
551 | free_netdev(dev); | |
552 | } | |
553 | } | |
554 | } | |
555 | #endif /* MODULE */ |