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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 | ||
1da177e4 LT |
96 | if (base_addr > 0x1ff) { /* Check a user specified location. */ |
97 | r = request_region(base_addr, WD_IO_EXTENT, "wd-probe"); | |
98 | if ( r == NULL) | |
99 | return -EBUSY; | |
100 | i = wd_probe1(dev, base_addr); | |
6aa20a22 | 101 | if (i != 0) |
1da177e4 LT |
102 | release_region(base_addr, WD_IO_EXTENT); |
103 | else | |
104 | r->name = dev->name; | |
105 | return i; | |
106 | } | |
107 | else if (base_addr != 0) /* Don't probe at all. */ | |
108 | return -ENXIO; | |
109 | ||
110 | for (i = 0; wd_portlist[i]; i++) { | |
111 | int ioaddr = wd_portlist[i]; | |
112 | r = request_region(ioaddr, WD_IO_EXTENT, "wd-probe"); | |
113 | if (r == NULL) | |
114 | continue; | |
115 | if (wd_probe1(dev, ioaddr) == 0) { | |
116 | r->name = dev->name; | |
117 | return 0; | |
118 | } | |
119 | release_region(ioaddr, WD_IO_EXTENT); | |
120 | dev->irq = irq; | |
121 | dev->mem_start = mem_start; | |
122 | dev->mem_end = mem_end; | |
123 | } | |
124 | ||
125 | return -ENODEV; | |
126 | } | |
127 | ||
1da177e4 LT |
128 | #ifndef MODULE |
129 | struct net_device * __init wd_probe(int unit) | |
130 | { | |
131 | struct net_device *dev = alloc_ei_netdev(); | |
132 | int err; | |
133 | ||
134 | if (!dev) | |
135 | return ERR_PTR(-ENOMEM); | |
136 | ||
137 | sprintf(dev->name, "eth%d", unit); | |
138 | netdev_boot_setup_check(dev); | |
139 | ||
140 | err = do_wd_probe(dev); | |
141 | if (err) | |
142 | goto out; | |
1da177e4 | 143 | return dev; |
1da177e4 LT |
144 | out: |
145 | free_netdev(dev); | |
146 | return ERR_PTR(err); | |
147 | } | |
148 | #endif | |
149 | ||
150 | static int __init wd_probe1(struct net_device *dev, int ioaddr) | |
151 | { | |
152 | int i; | |
b1fc5505 | 153 | int err; |
1da177e4 LT |
154 | int checksum = 0; |
155 | int ancient = 0; /* An old card without config registers. */ | |
156 | int word16 = 0; /* 0 = 8 bit, 1 = 16 bit */ | |
157 | const char *model_name; | |
158 | static unsigned version_printed; | |
0795af57 | 159 | DECLARE_MAC_BUF(mac); |
1da177e4 LT |
160 | |
161 | for (i = 0; i < 8; i++) | |
162 | checksum += inb(ioaddr + 8 + i); | |
163 | if (inb(ioaddr + 8) == 0xff /* Extra check to avoid soundcard. */ | |
164 | || inb(ioaddr + 9) == 0xff | |
165 | || (checksum & 0xff) != 0xFF) | |
166 | return -ENODEV; | |
167 | ||
168 | /* Check for semi-valid mem_start/end values if supplied. */ | |
169 | if ((dev->mem_start % 0x2000) || (dev->mem_end % 0x2000)) { | |
170 | printk(KERN_WARNING "wd.c: user supplied mem_start or mem_end not on 8kB boundary - ignored.\n"); | |
171 | dev->mem_start = 0; | |
172 | dev->mem_end = 0; | |
173 | } | |
174 | ||
175 | if (ei_debug && version_printed++ == 0) | |
176 | printk(version); | |
177 | ||
1da177e4 | 178 | for (i = 0; i < 6; i++) |
0795af57 JP |
179 | dev->dev_addr[i] = inb(ioaddr + 8 + i); |
180 | ||
181 | printk("%s: WD80x3 at %#3x, %s", | |
182 | dev->name, ioaddr, print_mac(mac, dev->dev_addr)); | |
1da177e4 LT |
183 | |
184 | /* The following PureData probe code was contributed by | |
185 | Mike Jagdis <jaggy@purplet.demon.co.uk>. Puredata does software | |
186 | configuration differently from others so we have to check for them. | |
187 | This detects an 8 bit, 16 bit or dumb (Toshiba, jumpered) card. | |
188 | */ | |
189 | if (inb(ioaddr+0) == 'P' && inb(ioaddr+1) == 'D') { | |
190 | unsigned char reg5 = inb(ioaddr+5); | |
191 | ||
192 | switch (inb(ioaddr+2)) { | |
193 | case 0x03: word16 = 0; model_name = "PDI8023-8"; break; | |
194 | case 0x05: word16 = 0; model_name = "PDUC8023"; break; | |
195 | case 0x0a: word16 = 1; model_name = "PDI8023-16"; break; | |
196 | /* Either 0x01 (dumb) or they've released a new version. */ | |
197 | default: word16 = 0; model_name = "PDI8023"; break; | |
198 | } | |
199 | dev->mem_start = ((reg5 & 0x1c) + 0xc0) << 12; | |
200 | dev->irq = (reg5 & 0xe0) == 0xe0 ? 10 : (reg5 >> 5) + 1; | |
201 | } else { /* End of PureData probe */ | |
202 | /* This method of checking for a 16-bit board is borrowed from the | |
203 | we.c driver. A simpler method is just to look in ASIC reg. 0x03. | |
204 | I'm comparing the two method in alpha test to make certain they | |
205 | return the same result. */ | |
206 | /* Check for the old 8 bit board - it has register 0/8 aliasing. | |
207 | Do NOT check i>=6 here -- it hangs the old 8003 boards! */ | |
208 | for (i = 0; i < 6; i++) | |
209 | if (inb(ioaddr+i) != inb(ioaddr+8+i)) | |
210 | break; | |
211 | if (i >= 6) { | |
212 | ancient = 1; | |
213 | model_name = "WD8003-old"; | |
214 | word16 = 0; | |
215 | } else { | |
216 | int tmp = inb(ioaddr+1); /* fiddle with 16bit bit */ | |
217 | outb( tmp ^ 0x01, ioaddr+1 ); /* attempt to clear 16bit bit */ | |
218 | if (((inb( ioaddr+1) & 0x01) == 0x01) /* A 16 bit card */ | |
219 | && (tmp & 0x01) == 0x01 ) { /* In a 16 slot. */ | |
220 | int asic_reg5 = inb(ioaddr+WD_CMDREG5); | |
221 | /* Magic to set ASIC to word-wide mode. */ | |
222 | outb( NIC16 | (asic_reg5&0x1f), ioaddr+WD_CMDREG5); | |
223 | outb(tmp, ioaddr+1); | |
224 | model_name = "WD8013"; | |
225 | word16 = 1; /* We have a 16bit board here! */ | |
226 | } else { | |
227 | model_name = "WD8003"; | |
228 | word16 = 0; | |
229 | } | |
230 | outb(tmp, ioaddr+1); /* Restore original reg1 value. */ | |
231 | } | |
232 | #ifndef final_version | |
233 | if ( !ancient && (inb(ioaddr+1) & 0x01) != (word16 & 0x01)) | |
234 | printk("\nWD80?3: Bus width conflict, %d (probe) != %d (reg report).", | |
235 | word16 ? 16 : 8, (inb(ioaddr+1) & 0x01) ? 16 : 8); | |
236 | #endif | |
237 | } | |
238 | ||
239 | #if defined(WD_SHMEM) && WD_SHMEM > 0x80000 | |
240 | /* Allow a compile-time override. */ | |
241 | dev->mem_start = WD_SHMEM; | |
242 | #else | |
243 | if (dev->mem_start == 0) { | |
244 | /* Sanity and old 8003 check */ | |
245 | int reg0 = inb(ioaddr); | |
246 | if (reg0 == 0xff || reg0 == 0) { | |
247 | /* Future plan: this could check a few likely locations first. */ | |
248 | dev->mem_start = 0xd0000; | |
249 | printk(" assigning address %#lx", dev->mem_start); | |
250 | } else { | |
251 | int high_addr_bits = inb(ioaddr+WD_CMDREG5) & 0x1f; | |
252 | /* Some boards don't have the register 5 -- it returns 0xff. */ | |
253 | if (high_addr_bits == 0x1f || word16 == 0) | |
254 | high_addr_bits = 0x01; | |
255 | dev->mem_start = ((reg0&0x3f) << 13) + (high_addr_bits << 19); | |
256 | } | |
257 | } | |
258 | #endif | |
259 | ||
260 | /* The 8390 isn't at the base address -- the ASIC regs are there! */ | |
261 | dev->base_addr = ioaddr+WD_NIC_OFFSET; | |
262 | ||
263 | if (dev->irq < 2) { | |
264 | int irqmap[] = {9,3,5,7,10,11,15,4}; | |
265 | int reg1 = inb(ioaddr+1); | |
266 | int reg4 = inb(ioaddr+4); | |
267 | if (ancient || reg1 == 0xff) { /* Ack!! No way to read the IRQ! */ | |
268 | short nic_addr = ioaddr+WD_NIC_OFFSET; | |
269 | unsigned long irq_mask; | |
270 | ||
271 | /* We have an old-style ethercard that doesn't report its IRQ | |
272 | line. Do autoirq to find the IRQ line. Note that this IS NOT | |
273 | a reliable way to trigger an interrupt. */ | |
274 | outb_p(E8390_NODMA + E8390_STOP, nic_addr); | |
275 | outb(0x00, nic_addr+EN0_IMR); /* Disable all intrs. */ | |
6aa20a22 | 276 | |
1da177e4 LT |
277 | irq_mask = probe_irq_on(); |
278 | outb_p(0xff, nic_addr + EN0_IMR); /* Enable all interrupts. */ | |
279 | outb_p(0x00, nic_addr + EN0_RCNTLO); | |
280 | outb_p(0x00, nic_addr + EN0_RCNTHI); | |
281 | outb(E8390_RREAD+E8390_START, nic_addr); /* Trigger it... */ | |
282 | mdelay(20); | |
283 | dev->irq = probe_irq_off(irq_mask); | |
6aa20a22 | 284 | |
1da177e4 LT |
285 | outb_p(0x00, nic_addr+EN0_IMR); /* Mask all intrs. again. */ |
286 | ||
287 | if (ei_debug > 2) | |
288 | printk(" autoirq is %d", dev->irq); | |
289 | if (dev->irq < 2) | |
290 | dev->irq = word16 ? 10 : 5; | |
291 | } else | |
292 | dev->irq = irqmap[((reg4 >> 5) & 0x03) + (reg1 & 0x04)]; | |
293 | } else if (dev->irq == 2) /* Fixup bogosity: IRQ2 is really IRQ9 */ | |
294 | dev->irq = 9; | |
295 | ||
296 | /* Snarf the interrupt now. There's no point in waiting since we cannot | |
297 | share and the board will usually be enabled. */ | |
298 | i = request_irq(dev->irq, ei_interrupt, 0, DRV_NAME, dev); | |
299 | if (i) { | |
300 | printk (" unable to get IRQ %d.\n", dev->irq); | |
301 | return i; | |
302 | } | |
303 | ||
304 | /* OK, were are certain this is going to work. Setup the device. */ | |
305 | ei_status.name = model_name; | |
306 | ei_status.word16 = word16; | |
307 | ei_status.tx_start_page = WD_START_PG; | |
308 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
309 | ||
310 | /* Don't map in the shared memory until the board is actually opened. */ | |
311 | ||
312 | /* Some cards (eg WD8003EBT) can be jumpered for more (32k!) memory. */ | |
313 | if (dev->mem_end != 0) { | |
314 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
315 | ei_status.priv = dev->mem_end - dev->mem_start; | |
316 | } else { | |
317 | ei_status.stop_page = word16 ? WD13_STOP_PG : WD03_STOP_PG; | |
318 | dev->mem_end = dev->mem_start + (ei_status.stop_page - WD_START_PG)*256; | |
319 | ei_status.priv = (ei_status.stop_page - WD_START_PG)*256; | |
320 | } | |
321 | ||
322 | ei_status.mem = ioremap(dev->mem_start, ei_status.priv); | |
323 | if (!ei_status.mem) { | |
324 | free_irq(dev->irq, dev); | |
325 | return -ENOMEM; | |
326 | } | |
327 | ||
328 | printk(" %s, IRQ %d, shared memory at %#lx-%#lx.\n", | |
329 | model_name, dev->irq, dev->mem_start, dev->mem_end-1); | |
330 | ||
331 | ei_status.reset_8390 = &wd_reset_8390; | |
332 | ei_status.block_input = &wd_block_input; | |
333 | ei_status.block_output = &wd_block_output; | |
334 | ei_status.get_8390_hdr = &wd_get_8390_hdr; | |
335 | dev->open = &wd_open; | |
336 | dev->stop = &wd_close; | |
337 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
338 | dev->poll_controller = ei_poll; | |
339 | #endif | |
d3d7b53d | 340 | NS8390_init(dev, 0); |
1da177e4 LT |
341 | |
342 | #if 1 | |
343 | /* Enable interrupt generation on softconfig cards -- M.U */ | |
344 | /* .. but possibly potentially unsafe - Donald */ | |
345 | if (inb(ioaddr+14) & 0x20) | |
346 | outb(inb(ioaddr+4)|0x80, ioaddr+4); | |
347 | #endif | |
348 | ||
b1fc5505 HX |
349 | err = register_netdev(dev); |
350 | if (err) | |
351 | free_irq(dev->irq, dev); | |
352 | return err; | |
1da177e4 LT |
353 | } |
354 | ||
355 | static int | |
356 | wd_open(struct net_device *dev) | |
357 | { | |
358 | int ioaddr = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
359 | ||
360 | /* Map in the shared memory. Always set register 0 last to remain | |
361 | compatible with very old boards. */ | |
362 | ei_status.reg0 = ((dev->mem_start>>13) & 0x3f) | WD_MEMENB; | |
363 | ei_status.reg5 = ((dev->mem_start>>19) & 0x1f) | NIC16; | |
364 | ||
365 | if (ei_status.word16) | |
366 | outb(ei_status.reg5, ioaddr+WD_CMDREG5); | |
367 | outb(ei_status.reg0, ioaddr); /* WD_CMDREG */ | |
368 | ||
369 | ei_open(dev); | |
370 | return 0; | |
371 | } | |
372 | ||
373 | static void | |
374 | wd_reset_8390(struct net_device *dev) | |
375 | { | |
376 | int wd_cmd_port = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
377 | ||
378 | outb(WD_RESET, wd_cmd_port); | |
379 | if (ei_debug > 1) printk("resetting the WD80x3 t=%lu...", jiffies); | |
380 | ei_status.txing = 0; | |
381 | ||
382 | /* Set up the ASIC registers, just in case something changed them. */ | |
383 | outb((((dev->mem_start>>13) & 0x3f)|WD_MEMENB), wd_cmd_port); | |
384 | if (ei_status.word16) | |
385 | outb(NIC16 | ((dev->mem_start>>19) & 0x1f), wd_cmd_port+WD_CMDREG5); | |
386 | ||
387 | if (ei_debug > 1) printk("reset done\n"); | |
388 | return; | |
389 | } | |
390 | ||
391 | /* Grab the 8390 specific header. Similar to the block_input routine, but | |
392 | we don't need to be concerned with ring wrap as the header will be at | |
393 | the start of a page, so we optimize accordingly. */ | |
394 | ||
395 | static void | |
396 | wd_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
397 | { | |
398 | ||
399 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
400 | void __iomem *hdr_start = ei_status.mem + ((ring_page - WD_START_PG)<<8); | |
401 | ||
402 | /* We'll always get a 4 byte header read followed by a packet read, so | |
403 | we enable 16 bit mode before the header, and disable after the body. */ | |
404 | if (ei_status.word16) | |
405 | outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
406 | ||
407 | #ifdef __BIG_ENDIAN | |
408 | /* Officially this is what we are doing, but the readl() is faster */ | |
409 | /* unfortunately it isn't endian aware of the struct */ | |
410 | memcpy_fromio(hdr, hdr_start, sizeof(struct e8390_pkt_hdr)); | |
411 | hdr->count = le16_to_cpu(hdr->count); | |
412 | #else | |
413 | ((unsigned int*)hdr)[0] = readl(hdr_start); | |
414 | #endif | |
415 | } | |
416 | ||
417 | /* Block input and output are easy on shared memory ethercards, and trivial | |
418 | on the Western digital card where there is no choice of how to do it. | |
419 | The only complications are that the ring buffer wraps, and need to map | |
420 | switch between 8- and 16-bit modes. */ | |
421 | ||
422 | static void | |
423 | wd_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
424 | { | |
425 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
426 | unsigned long offset = ring_offset - (WD_START_PG<<8); | |
427 | void __iomem *xfer_start = ei_status.mem + offset; | |
428 | ||
429 | if (offset + count > ei_status.priv) { | |
430 | /* We must wrap the input move. */ | |
431 | int semi_count = ei_status.priv - offset; | |
432 | memcpy_fromio(skb->data, xfer_start, semi_count); | |
433 | count -= semi_count; | |
434 | memcpy_fromio(skb->data + semi_count, ei_status.mem + TX_PAGES * 256, count); | |
435 | } else { | |
436 | /* Packet is in one chunk -- we can copy + cksum. */ | |
4ec03116 | 437 | memcpy_fromio(skb->data, xfer_start, count); |
1da177e4 LT |
438 | } |
439 | ||
440 | /* Turn off 16 bit access so that reboot works. ISA brain-damage */ | |
441 | if (ei_status.word16) | |
442 | outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
443 | } | |
444 | ||
445 | static void | |
446 | wd_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
447 | int start_page) | |
448 | { | |
449 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
450 | void __iomem *shmem = ei_status.mem + ((start_page - WD_START_PG)<<8); | |
451 | ||
452 | ||
453 | if (ei_status.word16) { | |
454 | /* Turn on and off 16 bit access so that reboot works. */ | |
455 | outb(ISA16 | ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
456 | memcpy_toio(shmem, buf, count); | |
457 | outb(ei_status.reg5, wd_cmdreg+WD_CMDREG5); | |
458 | } else | |
459 | memcpy_toio(shmem, buf, count); | |
460 | } | |
461 | ||
462 | ||
463 | static int | |
464 | wd_close(struct net_device *dev) | |
465 | { | |
466 | int wd_cmdreg = dev->base_addr - WD_NIC_OFFSET; /* WD_CMDREG */ | |
467 | ||
468 | if (ei_debug > 1) | |
469 | printk("%s: Shutting down ethercard.\n", dev->name); | |
470 | ei_close(dev); | |
471 | ||
472 | /* Change from 16-bit to 8-bit shared memory so reboot works. */ | |
473 | if (ei_status.word16) | |
474 | outb(ei_status.reg5, wd_cmdreg + WD_CMDREG5 ); | |
475 | ||
476 | /* And disable the shared memory. */ | |
477 | outb(ei_status.reg0 & ~WD_MEMENB, wd_cmdreg); | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
6aa20a22 | 482 | |
1da177e4 LT |
483 | #ifdef MODULE |
484 | #define MAX_WD_CARDS 4 /* Max number of wd cards per module */ | |
485 | static struct net_device *dev_wd[MAX_WD_CARDS]; | |
486 | static int io[MAX_WD_CARDS]; | |
487 | static int irq[MAX_WD_CARDS]; | |
488 | static int mem[MAX_WD_CARDS]; | |
489 | static int mem_end[MAX_WD_CARDS]; /* for non std. mem size */ | |
490 | ||
491 | module_param_array(io, int, NULL, 0); | |
492 | module_param_array(irq, int, NULL, 0); | |
493 | module_param_array(mem, int, NULL, 0); | |
494 | module_param_array(mem_end, int, NULL, 0); | |
495 | MODULE_PARM_DESC(io, "I/O base address(es)"); | |
496 | MODULE_PARM_DESC(irq, "IRQ number(s) (ignored for PureData boards)"); | |
497 | MODULE_PARM_DESC(mem, "memory base address(es)(ignored for PureData boards)"); | |
498 | MODULE_PARM_DESC(mem_end, "memory end address(es)"); | |
499 | MODULE_DESCRIPTION("ISA Western Digital wd8003/wd8013 ; SMC Elite, Elite16 ethernet driver"); | |
500 | MODULE_LICENSE("GPL"); | |
501 | ||
502 | /* This is set up so that only a single autoprobe takes place per call. | |
503 | ISA device autoprobes on a running machine are not recommended. */ | |
5e5fa01d AM |
504 | |
505 | int __init init_module(void) | |
1da177e4 LT |
506 | { |
507 | struct net_device *dev; | |
508 | int this_dev, found = 0; | |
509 | ||
510 | for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) { | |
511 | if (io[this_dev] == 0) { | |
512 | if (this_dev != 0) break; /* only autoprobe 1st one */ | |
513 | printk(KERN_NOTICE "wd.c: Presently autoprobing (not recommended) for a single card.\n"); | |
514 | } | |
515 | dev = alloc_ei_netdev(); | |
516 | if (!dev) | |
517 | break; | |
518 | dev->irq = irq[this_dev]; | |
519 | dev->base_addr = io[this_dev]; | |
520 | dev->mem_start = mem[this_dev]; | |
521 | dev->mem_end = mem_end[this_dev]; | |
522 | if (do_wd_probe(dev) == 0) { | |
b1fc5505 HX |
523 | dev_wd[found++] = dev; |
524 | continue; | |
1da177e4 LT |
525 | } |
526 | free_netdev(dev); | |
527 | printk(KERN_WARNING "wd.c: No wd80x3 card found (i/o = 0x%x).\n", io[this_dev]); | |
528 | break; | |
529 | } | |
530 | if (found) | |
531 | return 0; | |
532 | return -ENXIO; | |
533 | } | |
534 | ||
64916f1e DV |
535 | static void cleanup_card(struct net_device *dev) |
536 | { | |
537 | free_irq(dev->irq, dev); | |
538 | release_region(dev->base_addr - WD_NIC_OFFSET, WD_IO_EXTENT); | |
539 | iounmap(ei_status.mem); | |
540 | } | |
541 | ||
afc8eb46 | 542 | void __exit |
1da177e4 LT |
543 | cleanup_module(void) |
544 | { | |
545 | int this_dev; | |
546 | ||
547 | for (this_dev = 0; this_dev < MAX_WD_CARDS; this_dev++) { | |
548 | struct net_device *dev = dev_wd[this_dev]; | |
549 | if (dev) { | |
550 | unregister_netdev(dev); | |
551 | cleanup_card(dev); | |
552 | free_netdev(dev); | |
553 | } | |
554 | } | |
555 | } | |
556 | #endif /* MODULE */ |