Commit | Line | Data |
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1da177e4 LT |
1 | /* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike) |
2 | Ethernet cards on Linux */ | |
3 | /* Based on the former daynaport.c driver, by Alan Cox. Some code | |
4 | taken from or inspired by skeleton.c by Donald Becker, acenic.c by | |
5 | Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker. | |
6 | ||
7 | This software may be used and distributed according to the terms of | |
8 | the GNU Public License, incorporated herein by reference. */ | |
9 | ||
6aa20a22 | 10 | /* 2000-02-28: support added for Dayna and Kinetics cards by |
1da177e4 LT |
11 | A.G.deWijn@phys.uu.nl */ |
12 | /* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */ | |
13 | /* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */ | |
14 | /* 2001-05-15: support for Cabletron ported from old daynaport driver | |
6aa20a22 | 15 | * and fixed access to Sonic Sys card which masquerades as a Farallon |
1da177e4 LT |
16 | * by rayk@knightsmanor.org */ |
17 | ||
1da177e4 LT |
18 | #include <linux/module.h> |
19 | #include <linux/kernel.h> | |
20 | #include <linux/types.h> | |
21 | #include <linux/fcntl.h> | |
22 | #include <linux/interrupt.h> | |
23 | #include <linux/ptrace.h> | |
24 | #include <linux/ioport.h> | |
25 | #include <linux/nubus.h> | |
26 | #include <linux/in.h> | |
27 | #include <linux/slab.h> | |
28 | #include <linux/string.h> | |
29 | #include <linux/errno.h> | |
30 | #include <linux/init.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/etherdevice.h> | |
33 | #include <linux/skbuff.h> | |
34 | #include <linux/bitops.h> | |
35 | ||
36 | #include <asm/system.h> | |
37 | #include <asm/io.h> | |
38 | #include <asm/dma.h> | |
39 | #include <asm/hwtest.h> | |
40 | #include <asm/macints.h> | |
41 | ||
8c6270f9 AV |
42 | static char version[] = |
43 | "mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; | |
44 | ||
45 | #define EI_SHIFT(x) (ei_local->reg_offset[x]) | |
46 | #define ei_inb(port) in_8(port) | |
47 | #define ei_outb(val,port) out_8(port,val) | |
48 | #define ei_inb_p(port) in_8(port) | |
49 | #define ei_outb_p(val,port) out_8(port,val) | |
50 | ||
51 | #include "lib8390.c" | |
1da177e4 LT |
52 | |
53 | #define WD_START_PG 0x00 /* First page of TX buffer */ | |
54 | #define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */ | |
55 | #define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ | |
56 | #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */ | |
57 | ||
58 | /* Unfortunately it seems we have to hardcode these for the moment */ | |
59 | /* Shouldn't the card know about this? Does anyone know where to read it off the card? Do we trust the data provided by the card? */ | |
60 | ||
61 | #define DAYNA_8390_BASE 0x80000 | |
62 | #define DAYNA_8390_MEM 0x00000 | |
63 | ||
64 | #define KINETICS_8390_BASE 0x80000 | |
65 | #define KINETICS_8390_MEM 0x00000 | |
66 | ||
6aa20a22 | 67 | #define CABLETRON_8390_BASE 0x90000 |
1da177e4 LT |
68 | #define CABLETRON_8390_MEM 0x00000 |
69 | ||
70 | enum mac8390_type { | |
71 | MAC8390_NONE = -1, | |
72 | MAC8390_APPLE, | |
73 | MAC8390_ASANTE, | |
74 | MAC8390_FARALLON, /* Apple, Asante, and Farallon are all compatible */ | |
75 | MAC8390_CABLETRON, | |
76 | MAC8390_DAYNA, | |
77 | MAC8390_INTERLAN, | |
78 | MAC8390_KINETICS, | |
79 | MAC8390_FOCUS, | |
80 | MAC8390_SONICSYS, | |
81 | MAC8390_DAYNA2, | |
82 | MAC8390_DAYNA3, | |
83 | }; | |
84 | ||
85 | static const char * cardname[] = { | |
86 | "apple", | |
87 | "asante", | |
88 | "farallon", | |
89 | "cabletron", | |
90 | "dayna", | |
91 | "interlan", | |
92 | "kinetics", | |
93 | "focus", | |
94 | "sonic systems", | |
95 | "dayna2", | |
96 | "dayna_lc", | |
97 | }; | |
98 | ||
99 | static int word16[] = { | |
100 | 1, /* apple */ | |
101 | 1, /* asante */ | |
102 | 1, /* farallon */ | |
103 | 1, /* cabletron */ | |
104 | 0, /* dayna */ | |
105 | 1, /* interlan */ | |
106 | 0, /* kinetics */ | |
107 | 1, /* focus (??) */ | |
108 | 1, /* sonic systems */ | |
109 | 1, /* dayna2 */ | |
110 | 1, /* dayna-lc */ | |
111 | }; | |
112 | ||
113 | /* on which cards do we use NuBus resources? */ | |
114 | static int useresources[] = { | |
115 | 1, /* apple */ | |
116 | 1, /* asante */ | |
117 | 1, /* farallon */ | |
118 | 0, /* cabletron */ | |
119 | 0, /* dayna */ | |
120 | 0, /* interlan */ | |
121 | 0, /* kinetics */ | |
122 | 0, /* focus (??) */ | |
123 | 1, /* sonic systems */ | |
124 | 1, /* dayna2 */ | |
125 | 1, /* dayna-lc */ | |
126 | }; | |
127 | ||
1da177e4 LT |
128 | extern enum mac8390_type mac8390_ident(struct nubus_dev * dev); |
129 | extern int mac8390_memsize(unsigned long membase); | |
130 | extern int mac8390_memtest(struct net_device * dev); | |
131 | static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev, | |
132 | enum mac8390_type type); | |
133 | ||
134 | static int mac8390_open(struct net_device * dev); | |
135 | static int mac8390_close(struct net_device * dev); | |
136 | static void mac8390_no_reset(struct net_device *dev); | |
137 | ||
138 | /* Sane (32-bit chunk memory read/write) - Apple/Asante/Farallon do this*/ | |
139 | static void sane_get_8390_hdr(struct net_device *dev, | |
140 | struct e8390_pkt_hdr *hdr, int ring_page); | |
141 | static void sane_block_input(struct net_device * dev, int count, | |
142 | struct sk_buff * skb, int ring_offset); | |
143 | static void sane_block_output(struct net_device * dev, int count, | |
144 | const unsigned char * buf, const int start_page); | |
145 | ||
146 | /* dayna_memcpy to and from card */ | |
147 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, | |
148 | int from, int count); | |
149 | static void dayna_memcpy_tocard(struct net_device *dev, int to, | |
150 | const void *from, int count); | |
151 | ||
152 | /* Dayna - Dayna/Kinetics use this */ | |
153 | static void dayna_get_8390_hdr(struct net_device *dev, | |
154 | struct e8390_pkt_hdr *hdr, int ring_page); | |
155 | static void dayna_block_input(struct net_device *dev, int count, | |
156 | struct sk_buff *skb, int ring_offset); | |
157 | static void dayna_block_output(struct net_device *dev, int count, | |
158 | const unsigned char *buf, int start_page); | |
159 | ||
160 | #define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c)) | |
161 | #define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c)) | |
162 | ||
163 | /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ | |
164 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
165 | struct e8390_pkt_hdr *hdr, int ring_page); | |
166 | static void slow_sane_block_input(struct net_device *dev, int count, | |
167 | struct sk_buff *skb, int ring_offset); | |
168 | static void slow_sane_block_output(struct net_device *dev, int count, | |
169 | const unsigned char *buf, int start_page); | |
170 | static void word_memcpy_tocard(void *tp, const void *fp, int count); | |
171 | static void word_memcpy_fromcard(void *tp, const void *fp, int count); | |
172 | ||
173 | enum mac8390_type __init mac8390_ident(struct nubus_dev * dev) | |
174 | { | |
175 | if (dev->dr_sw == NUBUS_DRSW_ASANTE) | |
176 | return MAC8390_ASANTE; | |
6aa20a22 | 177 | if (dev->dr_sw == NUBUS_DRSW_FARALLON) |
1da177e4 LT |
178 | return MAC8390_FARALLON; |
179 | if (dev->dr_sw == NUBUS_DRSW_KINETICS) | |
180 | return MAC8390_KINETICS; | |
181 | if (dev->dr_sw == NUBUS_DRSW_DAYNA) | |
182 | return MAC8390_DAYNA; | |
183 | if (dev->dr_sw == NUBUS_DRSW_DAYNA2) | |
184 | return MAC8390_DAYNA2; | |
185 | if (dev->dr_sw == NUBUS_DRSW_DAYNA_LC) | |
186 | return MAC8390_DAYNA3; | |
187 | if (dev->dr_hw == NUBUS_DRHW_CABLETRON) | |
188 | return MAC8390_CABLETRON; | |
189 | return MAC8390_NONE; | |
190 | } | |
191 | ||
192 | int __init mac8390_memsize(unsigned long membase) | |
193 | { | |
194 | unsigned long flags; | |
195 | int i, j; | |
6aa20a22 | 196 | |
1da177e4 LT |
197 | local_irq_save(flags); |
198 | /* Check up to 32K in 4K increments */ | |
199 | for (i = 0; i < 8; i++) { | |
200 | volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000)); | |
201 | ||
202 | /* Unwriteable - we have a fully decoded card and the | |
203 | RAM end located */ | |
204 | if (hwreg_present(m) == 0) | |
205 | break; | |
6aa20a22 | 206 | |
1da177e4 LT |
207 | /* write a distinctive byte */ |
208 | *m = 0xA5A0 | i; | |
209 | /* check that we read back what we wrote */ | |
210 | if (*m != (0xA5A0 | i)) | |
211 | break; | |
212 | ||
213 | /* check for partial decode and wrap */ | |
214 | for (j = 0; j < i; j++) { | |
215 | volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000)); | |
216 | if (*p != (0xA5A0 | j)) | |
217 | break; | |
218 | } | |
219 | } | |
220 | local_irq_restore(flags); | |
221 | /* in any case, we stopped once we tried one block too many, | |
222 | or once we reached 32K */ | |
223 | return i * 0x1000; | |
224 | } | |
225 | ||
226 | struct net_device * __init mac8390_probe(int unit) | |
227 | { | |
228 | struct net_device *dev; | |
229 | volatile unsigned short *i; | |
230 | int version_disp = 0; | |
231 | struct nubus_dev * ndev = NULL; | |
232 | int err = -ENODEV; | |
6aa20a22 | 233 | |
1da177e4 LT |
234 | struct nubus_dir dir; |
235 | struct nubus_dirent ent; | |
236 | int offset; | |
237 | static unsigned int slots; | |
238 | ||
239 | enum mac8390_type cardtype; | |
240 | ||
241 | /* probably should check for Nubus instead */ | |
242 | ||
243 | if (!MACH_IS_MAC) | |
244 | return ERR_PTR(-ENODEV); | |
245 | ||
8c6270f9 | 246 | dev = ____alloc_ei_netdev(0); |
1da177e4 LT |
247 | if (!dev) |
248 | return ERR_PTR(-ENOMEM); | |
249 | ||
250 | if (unit >= 0) | |
251 | sprintf(dev->name, "eth%d", unit); | |
252 | ||
253 | SET_MODULE_OWNER(dev); | |
254 | ||
255 | while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) { | |
256 | /* Have we seen it already? */ | |
257 | if (slots & (1<<ndev->board->slot)) | |
258 | continue; | |
259 | slots |= 1<<ndev->board->slot; | |
260 | ||
261 | if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE) | |
262 | continue; | |
263 | ||
264 | if (version_disp == 0) { | |
265 | version_disp = 1; | |
266 | printk(version); | |
267 | } | |
268 | ||
269 | dev->irq = SLOT2IRQ(ndev->board->slot); | |
270 | /* This is getting to be a habit */ | |
271 | dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20); | |
272 | ||
273 | /* Get some Nubus info - we will trust the card's idea | |
274 | of where its memory and registers are. */ | |
275 | ||
276 | if (nubus_get_func_dir(ndev, &dir) == -1) { | |
277 | printk(KERN_ERR "%s: Unable to get Nubus functional" | |
278 | " directory for slot %X!\n", | |
279 | dev->name, ndev->board->slot); | |
280 | continue; | |
281 | } | |
6aa20a22 | 282 | |
1da177e4 LT |
283 | /* Get the MAC address */ |
284 | if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) { | |
285 | printk(KERN_INFO "%s: Couldn't get MAC address!\n", | |
286 | dev->name); | |
287 | continue; | |
288 | } else { | |
289 | nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); | |
290 | /* Some Sonic Sys cards masquerade as Farallon */ | |
6aa20a22 | 291 | if (cardtype == MAC8390_FARALLON && |
1da177e4 LT |
292 | dev->dev_addr[0] == 0x0 && |
293 | dev->dev_addr[1] == 0x40 && | |
294 | dev->dev_addr[2] == 0x10) { | |
295 | /* This is really Sonic Sys card */ | |
296 | cardtype = MAC8390_SONICSYS; | |
297 | } | |
298 | } | |
6aa20a22 | 299 | |
1da177e4 LT |
300 | if (useresources[cardtype] == 1) { |
301 | nubus_rewinddir(&dir); | |
302 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) { | |
303 | printk(KERN_ERR "%s: Memory offset resource" | |
304 | " for slot %X not found!\n", | |
305 | dev->name, ndev->board->slot); | |
306 | continue; | |
307 | } | |
308 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
309 | dev->mem_start = dev->base_addr + offset; | |
310 | /* yes, this is how the Apple driver does it */ | |
311 | dev->base_addr = dev->mem_start + 0x10000; | |
312 | nubus_rewinddir(&dir); | |
313 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) { | |
314 | printk(KERN_INFO "%s: Memory length resource" | |
315 | " for slot %X not found" | |
316 | ", probing\n", | |
317 | dev->name, ndev->board->slot); | |
318 | offset = mac8390_memsize(dev->mem_start); | |
319 | } else { | |
320 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
321 | } | |
322 | dev->mem_end = dev->mem_start + offset; | |
323 | } else { | |
324 | switch (cardtype) { | |
325 | case MAC8390_KINETICS: | |
326 | case MAC8390_DAYNA: /* it's the same */ | |
6aa20a22 | 327 | dev->base_addr = |
1da177e4 LT |
328 | (int)(ndev->board->slot_addr + |
329 | DAYNA_8390_BASE); | |
6aa20a22 | 330 | dev->mem_start = |
1da177e4 LT |
331 | (int)(ndev->board->slot_addr + |
332 | DAYNA_8390_MEM); | |
333 | dev->mem_end = | |
334 | dev->mem_start + | |
335 | mac8390_memsize(dev->mem_start); | |
336 | break; | |
337 | case MAC8390_CABLETRON: | |
338 | dev->base_addr = | |
339 | (int)(ndev->board->slot_addr + | |
340 | CABLETRON_8390_BASE); | |
341 | dev->mem_start = | |
342 | (int)(ndev->board->slot_addr + | |
343 | CABLETRON_8390_MEM); | |
344 | /* The base address is unreadable if 0x00 | |
345 | * has been written to the command register | |
346 | * Reset the chip by writing E8390_NODMA + | |
347 | * E8390_PAGE0 + E8390_STOP just to be | |
348 | * sure | |
349 | */ | |
350 | i = (void *)dev->base_addr; | |
351 | *i = 0x21; | |
6aa20a22 | 352 | dev->mem_end = |
1da177e4 LT |
353 | dev->mem_start + |
354 | mac8390_memsize(dev->mem_start); | |
355 | break; | |
6aa20a22 | 356 | |
1da177e4 LT |
357 | default: |
358 | printk(KERN_ERR "Card type %s is" | |
359 | " unsupported, sorry\n", | |
360 | cardname[cardtype]); | |
361 | continue; | |
362 | } | |
363 | } | |
364 | ||
365 | /* Do the nasty 8390 stuff */ | |
366 | if (!mac8390_initdev(dev, ndev, cardtype)) | |
367 | break; | |
368 | } | |
369 | ||
370 | if (!ndev) | |
371 | goto out; | |
372 | err = register_netdev(dev); | |
373 | if (err) | |
374 | goto out; | |
375 | return dev; | |
376 | ||
377 | out: | |
378 | free_netdev(dev); | |
379 | return ERR_PTR(err); | |
380 | } | |
381 | ||
382 | #ifdef MODULE | |
383 | MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); | |
384 | MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); | |
385 | MODULE_LICENSE("GPL"); | |
386 | ||
387 | /* overkill, of course */ | |
388 | static struct net_device *dev_mac8390[15]; | |
389 | int init_module(void) | |
390 | { | |
391 | int i; | |
392 | for (i = 0; i < 15; i++) { | |
393 | struct net_device *dev = mac8390_probe(-1); | |
394 | if (IS_ERR(dev)) | |
395 | break; | |
396 | dev_mac890[i] = dev; | |
397 | } | |
398 | if (!i) { | |
399 | printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n"); | |
400 | return -ENODEV; | |
401 | } | |
402 | return 0; | |
403 | } | |
404 | ||
405 | void cleanup_module(void) | |
406 | { | |
407 | int i; | |
408 | for (i = 0; i < 15; i++) { | |
409 | struct net_device *dev = dev_mac890[i]; | |
410 | if (dev) { | |
411 | unregister_netdev(dev); | |
412 | free_netdev(dev); | |
413 | } | |
414 | } | |
415 | } | |
416 | ||
417 | #endif /* MODULE */ | |
418 | ||
419 | static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev, | |
420 | enum mac8390_type type) | |
421 | { | |
422 | static u32 fwrd4_offsets[16]={ | |
423 | 0, 4, 8, 12, | |
424 | 16, 20, 24, 28, | |
425 | 32, 36, 40, 44, | |
426 | 48, 52, 56, 60 | |
427 | }; | |
428 | static u32 back4_offsets[16]={ | |
429 | 60, 56, 52, 48, | |
430 | 44, 40, 36, 32, | |
431 | 28, 24, 20, 16, | |
432 | 12, 8, 4, 0 | |
433 | }; | |
434 | static u32 fwrd2_offsets[16]={ | |
435 | 0, 2, 4, 6, | |
436 | 8, 10, 12, 14, | |
437 | 16, 18, 20, 22, | |
438 | 24, 26, 28, 30 | |
439 | }; | |
440 | ||
441 | int access_bitmode; | |
6aa20a22 | 442 | |
1da177e4 LT |
443 | /* Now fill in our stuff */ |
444 | dev->open = &mac8390_open; | |
445 | dev->stop = &mac8390_close; | |
446 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
8c6270f9 | 447 | dev->poll_controller = __ei_poll; |
1da177e4 LT |
448 | #endif |
449 | ||
450 | /* GAR, ei_status is actually a macro even though it looks global */ | |
451 | ei_status.name = cardname[type]; | |
452 | ei_status.word16 = word16[type]; | |
453 | ||
454 | /* Cabletron's TX/RX buffers are backwards */ | |
455 | if (type == MAC8390_CABLETRON) { | |
456 | ei_status.tx_start_page = CABLETRON_TX_START_PG; | |
457 | ei_status.rx_start_page = CABLETRON_RX_START_PG; | |
458 | ei_status.stop_page = CABLETRON_RX_STOP_PG; | |
459 | ei_status.rmem_start = dev->mem_start; | |
460 | ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; | |
461 | } else { | |
462 | ei_status.tx_start_page = WD_START_PG; | |
463 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
464 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
465 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | |
466 | ei_status.rmem_end = dev->mem_end; | |
467 | } | |
6aa20a22 | 468 | |
1da177e4 LT |
469 | /* Fill in model-specific information and functions */ |
470 | switch(type) { | |
471 | case MAC8390_SONICSYS: | |
472 | /* 16 bit card, register map is reversed */ | |
473 | ei_status.reset_8390 = &mac8390_no_reset; | |
474 | ei_status.block_input = &slow_sane_block_input; | |
475 | ei_status.block_output = &slow_sane_block_output; | |
476 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
477 | ei_status.reg_offset = back4_offsets; | |
478 | access_bitmode = 0; | |
479 | break; | |
480 | case MAC8390_FARALLON: | |
481 | case MAC8390_APPLE: | |
482 | case MAC8390_ASANTE: | |
483 | case MAC8390_DAYNA2: | |
484 | case MAC8390_DAYNA3: | |
485 | /* 32 bit card, register map is reversed */ | |
486 | /* sane */ | |
487 | ei_status.reset_8390 = &mac8390_no_reset; | |
488 | ei_status.block_input = &sane_block_input; | |
489 | ei_status.block_output = &sane_block_output; | |
490 | ei_status.get_8390_hdr = &sane_get_8390_hdr; | |
491 | ei_status.reg_offset = back4_offsets; | |
492 | access_bitmode = 1; | |
493 | break; | |
494 | case MAC8390_CABLETRON: | |
495 | /* 16 bit card, register map is short forward */ | |
496 | ei_status.reset_8390 = &mac8390_no_reset; | |
497 | ei_status.block_input = &slow_sane_block_input; | |
498 | ei_status.block_output = &slow_sane_block_output; | |
499 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
500 | ei_status.reg_offset = fwrd2_offsets; | |
501 | access_bitmode = 0; | |
502 | break; | |
503 | case MAC8390_DAYNA: | |
504 | case MAC8390_KINETICS: | |
505 | /* 16 bit memory */ | |
506 | /* dayna and similar */ | |
507 | ei_status.reset_8390 = &mac8390_no_reset; | |
508 | ei_status.block_input = &dayna_block_input; | |
509 | ei_status.block_output = &dayna_block_output; | |
510 | ei_status.get_8390_hdr = &dayna_get_8390_hdr; | |
511 | ei_status.reg_offset = fwrd4_offsets; | |
512 | access_bitmode = 0; | |
513 | break; | |
514 | default: | |
515 | printk(KERN_ERR "Card type %s is unsupported, sorry\n", cardname[type]); | |
516 | return -ENODEV; | |
517 | } | |
6aa20a22 | 518 | |
8c6270f9 | 519 | __NS8390_init(dev, 0); |
1da177e4 LT |
520 | |
521 | /* Good, done, now spit out some messages */ | |
522 | printk(KERN_INFO "%s: %s in slot %X (type %s)\n", | |
523 | dev->name, ndev->board->name, ndev->board->slot, cardname[type]); | |
524 | printk(KERN_INFO "MAC "); | |
525 | { | |
526 | int i; | |
527 | for (i = 0; i < 6; i++) { | |
528 | printk("%2.2x", dev->dev_addr[i]); | |
529 | if (i < 5) | |
530 | printk(":"); | |
531 | } | |
532 | } | |
533 | printk(" IRQ %d, shared memory at %#lx-%#lx, %d-bit access.\n", | |
6aa20a22 | 534 | dev->irq, dev->mem_start, dev->mem_end-1, |
1da177e4 LT |
535 | access_bitmode?32:16); |
536 | return 0; | |
537 | } | |
538 | ||
539 | static int mac8390_open(struct net_device *dev) | |
540 | { | |
8c6270f9 AV |
541 | __ei_open(dev); |
542 | if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) { | |
1da177e4 LT |
543 | printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq); |
544 | return -EAGAIN; | |
6aa20a22 | 545 | } |
1da177e4 LT |
546 | return 0; |
547 | } | |
548 | ||
549 | static int mac8390_close(struct net_device *dev) | |
550 | { | |
551 | free_irq(dev->irq, dev); | |
8c6270f9 | 552 | __ei_close(dev); |
1da177e4 LT |
553 | return 0; |
554 | } | |
555 | ||
556 | static void mac8390_no_reset(struct net_device *dev) | |
557 | { | |
558 | ei_status.txing = 0; | |
559 | if (ei_debug > 1) | |
560 | printk("reset not supported\n"); | |
561 | return; | |
562 | } | |
563 | ||
564 | /* dayna_memcpy_fromio/dayna_memcpy_toio */ | |
565 | /* directly from daynaport.c by Alan Cox */ | |
566 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count) | |
567 | { | |
09cc07a5 AV |
568 | volatile unsigned char *ptr; |
569 | unsigned char *target=to; | |
1da177e4 | 570 | from<<=1; /* word, skip overhead */ |
09cc07a5 | 571 | ptr=(unsigned char *)(dev->mem_start+from); |
1da177e4 LT |
572 | /* Leading byte? */ |
573 | if (from&2) { | |
09cc07a5 AV |
574 | *target++ = ptr[-1]; |
575 | ptr += 2; | |
1da177e4 LT |
576 | count--; |
577 | } | |
578 | while(count>=2) | |
579 | { | |
09cc07a5 AV |
580 | *(unsigned short *)target = *(unsigned short volatile *)ptr; |
581 | ptr += 4; /* skip cruft */ | |
582 | target += 2; | |
1da177e4 LT |
583 | count-=2; |
584 | } | |
585 | /* Trailing byte? */ | |
586 | if(count) | |
09cc07a5 | 587 | *target = *ptr; |
1da177e4 LT |
588 | } |
589 | ||
590 | static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count) | |
591 | { | |
592 | volatile unsigned short *ptr; | |
09cc07a5 | 593 | const unsigned char *src=from; |
1da177e4 LT |
594 | to<<=1; /* word, skip overhead */ |
595 | ptr=(unsigned short *)(dev->mem_start+to); | |
596 | /* Leading byte? */ | |
597 | if (to&2) { /* avoid a byte write (stomps on other data) */ | |
09cc07a5 | 598 | ptr[-1] = (ptr[-1]&0xFF00)|*src++; |
1da177e4 LT |
599 | ptr++; |
600 | count--; | |
601 | } | |
602 | while(count>=2) | |
603 | { | |
09cc07a5 | 604 | *ptr++=*(unsigned short *)src; /* Copy and */ |
1da177e4 | 605 | ptr++; /* skip cruft */ |
09cc07a5 | 606 | src += 2; |
1da177e4 LT |
607 | count-=2; |
608 | } | |
609 | /* Trailing byte? */ | |
610 | if(count) | |
611 | { | |
1da177e4 | 612 | /* card doesn't like byte writes */ |
09cc07a5 | 613 | *ptr=(*ptr&0x00FF)|(*src << 8); |
1da177e4 LT |
614 | } |
615 | } | |
616 | ||
617 | /* sane block input/output */ | |
618 | static void sane_get_8390_hdr(struct net_device *dev, | |
619 | struct e8390_pkt_hdr *hdr, int ring_page) | |
620 | { | |
621 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
622 | memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4); | |
623 | /* Fix endianness */ | |
624 | hdr->count = swab16(hdr->count); | |
625 | } | |
626 | ||
627 | static void sane_block_input(struct net_device *dev, int count, | |
628 | struct sk_buff *skb, int ring_offset) | |
629 | { | |
630 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
631 | unsigned long xfer_start = xfer_base + dev->mem_start; | |
632 | ||
633 | if (xfer_start + count > ei_status.rmem_end) { | |
634 | /* We must wrap the input move. */ | |
635 | int semi_count = ei_status.rmem_end - xfer_start; | |
636 | memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count); | |
637 | count -= semi_count; | |
638 | memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count); | |
639 | } else { | |
640 | memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count); | |
641 | } | |
642 | } | |
643 | ||
644 | static void sane_block_output(struct net_device *dev, int count, | |
645 | const unsigned char *buf, int start_page) | |
646 | { | |
647 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 648 | |
1da177e4 LT |
649 | memcpy_toio((char *)dev->mem_start + shmem, buf, count); |
650 | } | |
651 | ||
652 | /* dayna block input/output */ | |
653 | static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
654 | { | |
655 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
656 | ||
657 | dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4); | |
658 | /* Fix endianness */ | |
659 | hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8); | |
660 | } | |
661 | ||
662 | static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
663 | { | |
664 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
665 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
666 | ||
667 | /* Note the offset math is done in card memory space which is word | |
668 | per long onto our space. */ | |
669 | ||
670 | if (xfer_start + count > ei_status.rmem_end) | |
671 | { | |
672 | /* We must wrap the input move. */ | |
673 | int semi_count = ei_status.rmem_end - xfer_start; | |
674 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); | |
675 | count -= semi_count; | |
676 | dayna_memcpy_fromcard(dev, skb->data + semi_count, | |
677 | ei_status.rmem_start - dev->mem_start, | |
678 | count); | |
679 | } | |
680 | else | |
681 | { | |
682 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); | |
683 | } | |
684 | } | |
685 | ||
686 | static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
687 | int start_page) | |
688 | { | |
689 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 690 | |
1da177e4 LT |
691 | dayna_memcpy_tocard(dev, shmem, buf, count); |
692 | } | |
693 | ||
694 | /* Cabletron block I/O */ | |
6aa20a22 | 695 | static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, |
1da177e4 LT |
696 | int ring_page) |
697 | { | |
698 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
699 | word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4); | |
700 | /* Register endianism - fix here rather than 8390.c */ | |
701 | hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); | |
702 | } | |
703 | ||
704 | static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, | |
705 | int ring_offset) | |
706 | { | |
707 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
708 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
709 | ||
710 | if (xfer_start + count > ei_status.rmem_end) | |
711 | { | |
712 | /* We must wrap the input move. */ | |
713 | int semi_count = ei_status.rmem_end - xfer_start; | |
714 | word_memcpy_fromcard(skb->data, (char *)dev->mem_start + | |
715 | xfer_base, semi_count); | |
716 | count -= semi_count; | |
717 | word_memcpy_fromcard(skb->data + semi_count, | |
718 | (char *)ei_status.rmem_start, count); | |
719 | } | |
720 | else | |
721 | { | |
722 | word_memcpy_fromcard(skb->data, (char *)dev->mem_start + | |
723 | xfer_base, count); | |
724 | } | |
725 | } | |
726 | ||
727 | static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
728 | int start_page) | |
729 | { | |
730 | long shmem = (start_page - WD_START_PG)<<8; | |
731 | ||
732 | word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count); | |
733 | } | |
734 | ||
735 | static void word_memcpy_tocard(void *tp, const void *fp, int count) | |
736 | { | |
737 | volatile unsigned short *to = tp; | |
738 | const unsigned short *from = fp; | |
739 | ||
740 | count++; | |
741 | count/=2; | |
742 | ||
743 | while(count--) | |
744 | *to++=*from++; | |
745 | } | |
746 | ||
747 | static void word_memcpy_fromcard(void *tp, const void *fp, int count) | |
748 | { | |
749 | unsigned short *to = tp; | |
750 | const volatile unsigned short *from = fp; | |
751 | ||
752 | count++; | |
753 | count/=2; | |
754 | ||
755 | while(count--) | |
756 | *to++=*from++; | |
757 | } | |
758 | ||
6aa20a22 | 759 |