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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 | 16 | * by rayk@knightsmanor.org */ |
2964db0f FT |
17 | /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */ |
18 | /* 2003-12-26: Make sure Asante cards always work. */ | |
1da177e4 | 19 | |
1da177e4 LT |
20 | #include <linux/module.h> |
21 | #include <linux/kernel.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/fcntl.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/ptrace.h> | |
26 | #include <linux/ioport.h> | |
27 | #include <linux/nubus.h> | |
28 | #include <linux/in.h> | |
29 | #include <linux/slab.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/errno.h> | |
32 | #include <linux/init.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/etherdevice.h> | |
35 | #include <linux/skbuff.h> | |
36 | #include <linux/bitops.h> | |
37 | ||
38 | #include <asm/system.h> | |
39 | #include <asm/io.h> | |
40 | #include <asm/dma.h> | |
41 | #include <asm/hwtest.h> | |
42 | #include <asm/macints.h> | |
43 | ||
8c6270f9 AV |
44 | static char version[] = |
45 | "mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; | |
46 | ||
47 | #define EI_SHIFT(x) (ei_local->reg_offset[x]) | |
48 | #define ei_inb(port) in_8(port) | |
49 | #define ei_outb(val,port) out_8(port,val) | |
50 | #define ei_inb_p(port) in_8(port) | |
51 | #define ei_outb_p(val,port) out_8(port,val) | |
52 | ||
53 | #include "lib8390.c" | |
1da177e4 LT |
54 | |
55 | #define WD_START_PG 0x00 /* First page of TX buffer */ | |
56 | #define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */ | |
57 | #define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ | |
58 | #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */ | |
59 | ||
60 | /* Unfortunately it seems we have to hardcode these for the moment */ | |
61 | /* 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? */ | |
62 | ||
63 | #define DAYNA_8390_BASE 0x80000 | |
64 | #define DAYNA_8390_MEM 0x00000 | |
65 | ||
6aa20a22 | 66 | #define CABLETRON_8390_BASE 0x90000 |
1da177e4 LT |
67 | #define CABLETRON_8390_MEM 0x00000 |
68 | ||
2964db0f FT |
69 | #define INTERLAN_8390_BASE 0xE0000 |
70 | #define INTERLAN_8390_MEM 0xD0000 | |
71 | ||
1da177e4 LT |
72 | enum mac8390_type { |
73 | MAC8390_NONE = -1, | |
74 | MAC8390_APPLE, | |
75 | MAC8390_ASANTE, | |
2964db0f | 76 | MAC8390_FARALLON, |
1da177e4 LT |
77 | MAC8390_CABLETRON, |
78 | MAC8390_DAYNA, | |
79 | MAC8390_INTERLAN, | |
80 | MAC8390_KINETICS, | |
1da177e4 LT |
81 | }; |
82 | ||
83 | static const char * cardname[] = { | |
84 | "apple", | |
85 | "asante", | |
86 | "farallon", | |
87 | "cabletron", | |
88 | "dayna", | |
89 | "interlan", | |
90 | "kinetics", | |
1da177e4 LT |
91 | }; |
92 | ||
93 | static int word16[] = { | |
94 | 1, /* apple */ | |
95 | 1, /* asante */ | |
96 | 1, /* farallon */ | |
97 | 1, /* cabletron */ | |
98 | 0, /* dayna */ | |
99 | 1, /* interlan */ | |
100 | 0, /* kinetics */ | |
1da177e4 LT |
101 | }; |
102 | ||
103 | /* on which cards do we use NuBus resources? */ | |
104 | static int useresources[] = { | |
105 | 1, /* apple */ | |
106 | 1, /* asante */ | |
107 | 1, /* farallon */ | |
108 | 0, /* cabletron */ | |
109 | 0, /* dayna */ | |
110 | 0, /* interlan */ | |
111 | 0, /* kinetics */ | |
2964db0f FT |
112 | }; |
113 | ||
114 | enum mac8390_access { | |
115 | ACCESS_UNKNOWN = 0, | |
116 | ACCESS_32, | |
117 | ACCESS_16, | |
1da177e4 LT |
118 | }; |
119 | ||
1da177e4 LT |
120 | extern int mac8390_memtest(struct net_device * dev); |
121 | static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev, | |
122 | enum mac8390_type type); | |
123 | ||
124 | static int mac8390_open(struct net_device * dev); | |
125 | static int mac8390_close(struct net_device * dev); | |
126 | static void mac8390_no_reset(struct net_device *dev); | |
2964db0f | 127 | static void interlan_reset(struct net_device *dev); |
1da177e4 | 128 | |
2964db0f | 129 | /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/ |
1da177e4 LT |
130 | static void sane_get_8390_hdr(struct net_device *dev, |
131 | struct e8390_pkt_hdr *hdr, int ring_page); | |
132 | static void sane_block_input(struct net_device * dev, int count, | |
133 | struct sk_buff * skb, int ring_offset); | |
134 | static void sane_block_output(struct net_device * dev, int count, | |
135 | const unsigned char * buf, const int start_page); | |
136 | ||
137 | /* dayna_memcpy to and from card */ | |
138 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, | |
139 | int from, int count); | |
140 | static void dayna_memcpy_tocard(struct net_device *dev, int to, | |
141 | const void *from, int count); | |
142 | ||
143 | /* Dayna - Dayna/Kinetics use this */ | |
144 | static void dayna_get_8390_hdr(struct net_device *dev, | |
145 | struct e8390_pkt_hdr *hdr, int ring_page); | |
146 | static void dayna_block_input(struct net_device *dev, int count, | |
147 | struct sk_buff *skb, int ring_offset); | |
148 | static void dayna_block_output(struct net_device *dev, int count, | |
149 | const unsigned char *buf, int start_page); | |
150 | ||
151 | #define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c)) | |
152 | #define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c)) | |
153 | ||
154 | /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ | |
155 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
156 | struct e8390_pkt_hdr *hdr, int ring_page); | |
157 | static void slow_sane_block_input(struct net_device *dev, int count, | |
158 | struct sk_buff *skb, int ring_offset); | |
159 | static void slow_sane_block_output(struct net_device *dev, int count, | |
160 | const unsigned char *buf, int start_page); | |
161 | static void word_memcpy_tocard(void *tp, const void *fp, int count); | |
162 | static void word_memcpy_fromcard(void *tp, const void *fp, int count); | |
163 | ||
909fa882 | 164 | static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) |
1da177e4 | 165 | { |
2964db0f FT |
166 | switch (dev->dr_sw) { |
167 | case NUBUS_DRSW_3COM: | |
168 | switch (dev->dr_hw) { | |
169 | case NUBUS_DRHW_APPLE_SONIC_NB: | |
170 | case NUBUS_DRHW_APPLE_SONIC_LC: | |
171 | case NUBUS_DRHW_SONNET: | |
172 | return MAC8390_NONE; | |
173 | break; | |
174 | default: | |
175 | return MAC8390_APPLE; | |
176 | break; | |
177 | } | |
178 | break; | |
179 | ||
180 | case NUBUS_DRSW_APPLE: | |
181 | switch (dev->dr_hw) { | |
182 | case NUBUS_DRHW_ASANTE_LC: | |
183 | return MAC8390_NONE; | |
184 | break; | |
185 | case NUBUS_DRHW_CABLETRON: | |
186 | return MAC8390_CABLETRON; | |
187 | break; | |
188 | default: | |
189 | return MAC8390_APPLE; | |
190 | break; | |
191 | } | |
192 | break; | |
193 | ||
194 | case NUBUS_DRSW_ASANTE: | |
195 | return MAC8390_ASANTE; | |
196 | break; | |
197 | ||
198 | case NUBUS_DRSW_TECHWORKS: | |
199 | case NUBUS_DRSW_DAYNA2: | |
200 | case NUBUS_DRSW_DAYNA_LC: | |
201 | if (dev->dr_hw == NUBUS_DRHW_CABLETRON) | |
202 | return MAC8390_CABLETRON; | |
203 | else | |
204 | return MAC8390_APPLE; | |
205 | break; | |
206 | ||
207 | case NUBUS_DRSW_FARALLON: | |
208 | return MAC8390_FARALLON; | |
209 | break; | |
210 | ||
211 | case NUBUS_DRSW_KINETICS: | |
212 | switch (dev->dr_hw) { | |
213 | case NUBUS_DRHW_INTERLAN: | |
214 | return MAC8390_INTERLAN; | |
215 | break; | |
216 | default: | |
217 | return MAC8390_KINETICS; | |
218 | break; | |
219 | } | |
220 | break; | |
221 | ||
222 | case NUBUS_DRSW_DAYNA: | |
223 | // These correspond to Dayna Sonic cards | |
224 | // which use the macsonic driver | |
225 | if (dev->dr_hw == NUBUS_DRHW_SMC9194 || | |
226 | dev->dr_hw == NUBUS_DRHW_INTERLAN ) | |
227 | return MAC8390_NONE; | |
228 | else | |
229 | return MAC8390_DAYNA; | |
230 | break; | |
231 | } | |
1da177e4 LT |
232 | return MAC8390_NONE; |
233 | } | |
234 | ||
909fa882 | 235 | static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) |
2964db0f FT |
236 | { |
237 | unsigned long outdata = 0xA5A0B5B0; | |
238 | unsigned long indata = 0x00000000; | |
239 | /* Try writing 32 bits */ | |
240 | memcpy((char *)membase, (char *)&outdata, 4); | |
241 | /* Now compare them */ | |
242 | if (memcmp((char *)&outdata, (char *)membase, 4) == 0) | |
243 | return ACCESS_32; | |
244 | /* Write 16 bit output */ | |
245 | word_memcpy_tocard((char *)membase, (char *)&outdata, 4); | |
246 | /* Now read it back */ | |
247 | word_memcpy_fromcard((char *)&indata, (char *)membase, 4); | |
248 | if (outdata == indata) | |
249 | return ACCESS_16; | |
250 | return ACCESS_UNKNOWN; | |
251 | } | |
252 | ||
909fa882 | 253 | static int __init mac8390_memsize(unsigned long membase) |
1da177e4 LT |
254 | { |
255 | unsigned long flags; | |
256 | int i, j; | |
6aa20a22 | 257 | |
1da177e4 LT |
258 | local_irq_save(flags); |
259 | /* Check up to 32K in 4K increments */ | |
260 | for (i = 0; i < 8; i++) { | |
261 | volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000)); | |
262 | ||
263 | /* Unwriteable - we have a fully decoded card and the | |
264 | RAM end located */ | |
265 | if (hwreg_present(m) == 0) | |
266 | break; | |
6aa20a22 | 267 | |
1da177e4 LT |
268 | /* write a distinctive byte */ |
269 | *m = 0xA5A0 | i; | |
270 | /* check that we read back what we wrote */ | |
271 | if (*m != (0xA5A0 | i)) | |
272 | break; | |
273 | ||
274 | /* check for partial decode and wrap */ | |
275 | for (j = 0; j < i; j++) { | |
276 | volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000)); | |
277 | if (*p != (0xA5A0 | j)) | |
278 | break; | |
279 | } | |
280 | } | |
281 | local_irq_restore(flags); | |
282 | /* in any case, we stopped once we tried one block too many, | |
283 | or once we reached 32K */ | |
284 | return i * 0x1000; | |
285 | } | |
286 | ||
287 | struct net_device * __init mac8390_probe(int unit) | |
288 | { | |
289 | struct net_device *dev; | |
290 | volatile unsigned short *i; | |
291 | int version_disp = 0; | |
292 | struct nubus_dev * ndev = NULL; | |
293 | int err = -ENODEV; | |
6aa20a22 | 294 | |
1da177e4 LT |
295 | struct nubus_dir dir; |
296 | struct nubus_dirent ent; | |
297 | int offset; | |
298 | static unsigned int slots; | |
299 | ||
300 | enum mac8390_type cardtype; | |
301 | ||
302 | /* probably should check for Nubus instead */ | |
303 | ||
304 | if (!MACH_IS_MAC) | |
305 | return ERR_PTR(-ENODEV); | |
306 | ||
8c6270f9 | 307 | dev = ____alloc_ei_netdev(0); |
1da177e4 LT |
308 | if (!dev) |
309 | return ERR_PTR(-ENOMEM); | |
310 | ||
311 | if (unit >= 0) | |
312 | sprintf(dev->name, "eth%d", unit); | |
313 | ||
1da177e4 LT |
314 | while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) { |
315 | /* Have we seen it already? */ | |
316 | if (slots & (1<<ndev->board->slot)) | |
317 | continue; | |
318 | slots |= 1<<ndev->board->slot; | |
319 | ||
320 | if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE) | |
321 | continue; | |
322 | ||
323 | if (version_disp == 0) { | |
324 | version_disp = 1; | |
325 | printk(version); | |
326 | } | |
327 | ||
328 | dev->irq = SLOT2IRQ(ndev->board->slot); | |
329 | /* This is getting to be a habit */ | |
330 | dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20); | |
331 | ||
332 | /* Get some Nubus info - we will trust the card's idea | |
333 | of where its memory and registers are. */ | |
334 | ||
335 | if (nubus_get_func_dir(ndev, &dir) == -1) { | |
336 | printk(KERN_ERR "%s: Unable to get Nubus functional" | |
337 | " directory for slot %X!\n", | |
338 | dev->name, ndev->board->slot); | |
339 | continue; | |
340 | } | |
6aa20a22 | 341 | |
1da177e4 LT |
342 | /* Get the MAC address */ |
343 | if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) { | |
344 | printk(KERN_INFO "%s: Couldn't get MAC address!\n", | |
345 | dev->name); | |
346 | continue; | |
347 | } else { | |
348 | nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); | |
1da177e4 | 349 | } |
6aa20a22 | 350 | |
1da177e4 LT |
351 | if (useresources[cardtype] == 1) { |
352 | nubus_rewinddir(&dir); | |
353 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) { | |
354 | printk(KERN_ERR "%s: Memory offset resource" | |
355 | " for slot %X not found!\n", | |
356 | dev->name, ndev->board->slot); | |
357 | continue; | |
358 | } | |
359 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
360 | dev->mem_start = dev->base_addr + offset; | |
361 | /* yes, this is how the Apple driver does it */ | |
362 | dev->base_addr = dev->mem_start + 0x10000; | |
363 | nubus_rewinddir(&dir); | |
364 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) { | |
365 | printk(KERN_INFO "%s: Memory length resource" | |
366 | " for slot %X not found" | |
367 | ", probing\n", | |
368 | dev->name, ndev->board->slot); | |
369 | offset = mac8390_memsize(dev->mem_start); | |
370 | } else { | |
371 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
372 | } | |
373 | dev->mem_end = dev->mem_start + offset; | |
374 | } else { | |
375 | switch (cardtype) { | |
376 | case MAC8390_KINETICS: | |
377 | case MAC8390_DAYNA: /* it's the same */ | |
6aa20a22 | 378 | dev->base_addr = |
1da177e4 LT |
379 | (int)(ndev->board->slot_addr + |
380 | DAYNA_8390_BASE); | |
6aa20a22 | 381 | dev->mem_start = |
1da177e4 LT |
382 | (int)(ndev->board->slot_addr + |
383 | DAYNA_8390_MEM); | |
384 | dev->mem_end = | |
385 | dev->mem_start + | |
386 | mac8390_memsize(dev->mem_start); | |
387 | break; | |
2964db0f FT |
388 | case MAC8390_INTERLAN: |
389 | dev->base_addr = | |
390 | (int)(ndev->board->slot_addr + | |
391 | INTERLAN_8390_BASE); | |
392 | dev->mem_start = | |
393 | (int)(ndev->board->slot_addr + | |
394 | INTERLAN_8390_MEM); | |
395 | dev->mem_end = | |
396 | dev->mem_start + | |
397 | mac8390_memsize(dev->mem_start); | |
398 | break; | |
1da177e4 LT |
399 | case MAC8390_CABLETRON: |
400 | dev->base_addr = | |
401 | (int)(ndev->board->slot_addr + | |
402 | CABLETRON_8390_BASE); | |
403 | dev->mem_start = | |
404 | (int)(ndev->board->slot_addr + | |
405 | CABLETRON_8390_MEM); | |
406 | /* The base address is unreadable if 0x00 | |
407 | * has been written to the command register | |
408 | * Reset the chip by writing E8390_NODMA + | |
409 | * E8390_PAGE0 + E8390_STOP just to be | |
410 | * sure | |
411 | */ | |
412 | i = (void *)dev->base_addr; | |
413 | *i = 0x21; | |
6aa20a22 | 414 | dev->mem_end = |
1da177e4 LT |
415 | dev->mem_start + |
416 | mac8390_memsize(dev->mem_start); | |
417 | break; | |
6aa20a22 | 418 | |
1da177e4 LT |
419 | default: |
420 | printk(KERN_ERR "Card type %s is" | |
2964db0f FT |
421 | " unsupported, sorry\n", |
422 | ndev->board->name); | |
1da177e4 LT |
423 | continue; |
424 | } | |
425 | } | |
426 | ||
427 | /* Do the nasty 8390 stuff */ | |
428 | if (!mac8390_initdev(dev, ndev, cardtype)) | |
429 | break; | |
430 | } | |
431 | ||
432 | if (!ndev) | |
433 | goto out; | |
434 | err = register_netdev(dev); | |
435 | if (err) | |
436 | goto out; | |
437 | return dev; | |
438 | ||
439 | out: | |
440 | free_netdev(dev); | |
441 | return ERR_PTR(err); | |
442 | } | |
443 | ||
444 | #ifdef MODULE | |
445 | MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); | |
446 | MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); | |
447 | MODULE_LICENSE("GPL"); | |
448 | ||
449 | /* overkill, of course */ | |
450 | static struct net_device *dev_mac8390[15]; | |
451 | int init_module(void) | |
452 | { | |
453 | int i; | |
454 | for (i = 0; i < 15; i++) { | |
455 | struct net_device *dev = mac8390_probe(-1); | |
456 | if (IS_ERR(dev)) | |
457 | break; | |
458 | dev_mac890[i] = dev; | |
459 | } | |
460 | if (!i) { | |
461 | printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n"); | |
462 | return -ENODEV; | |
463 | } | |
464 | return 0; | |
465 | } | |
466 | ||
467 | void cleanup_module(void) | |
468 | { | |
469 | int i; | |
470 | for (i = 0; i < 15; i++) { | |
471 | struct net_device *dev = dev_mac890[i]; | |
472 | if (dev) { | |
473 | unregister_netdev(dev); | |
474 | free_netdev(dev); | |
475 | } | |
476 | } | |
477 | } | |
478 | ||
479 | #endif /* MODULE */ | |
480 | ||
481 | static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev, | |
482 | enum mac8390_type type) | |
483 | { | |
484 | static u32 fwrd4_offsets[16]={ | |
485 | 0, 4, 8, 12, | |
486 | 16, 20, 24, 28, | |
487 | 32, 36, 40, 44, | |
488 | 48, 52, 56, 60 | |
489 | }; | |
490 | static u32 back4_offsets[16]={ | |
491 | 60, 56, 52, 48, | |
492 | 44, 40, 36, 32, | |
493 | 28, 24, 20, 16, | |
494 | 12, 8, 4, 0 | |
495 | }; | |
496 | static u32 fwrd2_offsets[16]={ | |
497 | 0, 2, 4, 6, | |
498 | 8, 10, 12, 14, | |
499 | 16, 18, 20, 22, | |
500 | 24, 26, 28, 30 | |
501 | }; | |
502 | ||
2964db0f | 503 | int access_bitmode = 0; |
6aa20a22 | 504 | |
1da177e4 LT |
505 | /* Now fill in our stuff */ |
506 | dev->open = &mac8390_open; | |
507 | dev->stop = &mac8390_close; | |
508 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
8c6270f9 | 509 | dev->poll_controller = __ei_poll; |
1da177e4 LT |
510 | #endif |
511 | ||
512 | /* GAR, ei_status is actually a macro even though it looks global */ | |
513 | ei_status.name = cardname[type]; | |
514 | ei_status.word16 = word16[type]; | |
515 | ||
516 | /* Cabletron's TX/RX buffers are backwards */ | |
517 | if (type == MAC8390_CABLETRON) { | |
518 | ei_status.tx_start_page = CABLETRON_TX_START_PG; | |
519 | ei_status.rx_start_page = CABLETRON_RX_START_PG; | |
520 | ei_status.stop_page = CABLETRON_RX_STOP_PG; | |
521 | ei_status.rmem_start = dev->mem_start; | |
522 | ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; | |
523 | } else { | |
524 | ei_status.tx_start_page = WD_START_PG; | |
525 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
526 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
527 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | |
528 | ei_status.rmem_end = dev->mem_end; | |
529 | } | |
6aa20a22 | 530 | |
1da177e4 LT |
531 | /* Fill in model-specific information and functions */ |
532 | switch(type) { | |
1da177e4 LT |
533 | case MAC8390_FARALLON: |
534 | case MAC8390_APPLE: | |
2964db0f FT |
535 | switch(mac8390_testio(dev->mem_start)) { |
536 | case ACCESS_UNKNOWN: | |
537 | printk("Don't know how to access card memory!\n"); | |
538 | return -ENODEV; | |
539 | break; | |
540 | ||
541 | case ACCESS_16: | |
542 | /* 16 bit card, register map is reversed */ | |
543 | ei_status.reset_8390 = &mac8390_no_reset; | |
544 | ei_status.block_input = &slow_sane_block_input; | |
545 | ei_status.block_output = &slow_sane_block_output; | |
546 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
547 | ei_status.reg_offset = back4_offsets; | |
548 | break; | |
549 | ||
550 | case ACCESS_32: | |
551 | /* 32 bit card, register map is reversed */ | |
552 | ei_status.reset_8390 = &mac8390_no_reset; | |
553 | ei_status.block_input = &sane_block_input; | |
554 | ei_status.block_output = &sane_block_output; | |
555 | ei_status.get_8390_hdr = &sane_get_8390_hdr; | |
556 | ei_status.reg_offset = back4_offsets; | |
557 | access_bitmode = 1; | |
558 | break; | |
559 | } | |
560 | break; | |
561 | ||
1da177e4 | 562 | case MAC8390_ASANTE: |
2964db0f FT |
563 | /* Some Asante cards pass the 32 bit test |
564 | * but overwrite system memory when run at 32 bit. | |
565 | * so we run them all at 16 bit. | |
566 | */ | |
1da177e4 | 567 | ei_status.reset_8390 = &mac8390_no_reset; |
2964db0f FT |
568 | ei_status.block_input = &slow_sane_block_input; |
569 | ei_status.block_output = &slow_sane_block_output; | |
570 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
1da177e4 | 571 | ei_status.reg_offset = back4_offsets; |
1da177e4 | 572 | break; |
2964db0f | 573 | |
1da177e4 LT |
574 | case MAC8390_CABLETRON: |
575 | /* 16 bit card, register map is short forward */ | |
576 | ei_status.reset_8390 = &mac8390_no_reset; | |
577 | ei_status.block_input = &slow_sane_block_input; | |
578 | ei_status.block_output = &slow_sane_block_output; | |
579 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
580 | ei_status.reg_offset = fwrd2_offsets; | |
1da177e4 | 581 | break; |
2964db0f | 582 | |
1da177e4 LT |
583 | case MAC8390_DAYNA: |
584 | case MAC8390_KINETICS: | |
2964db0f | 585 | /* 16 bit memory, register map is forward */ |
1da177e4 LT |
586 | /* dayna and similar */ |
587 | ei_status.reset_8390 = &mac8390_no_reset; | |
588 | ei_status.block_input = &dayna_block_input; | |
589 | ei_status.block_output = &dayna_block_output; | |
590 | ei_status.get_8390_hdr = &dayna_get_8390_hdr; | |
591 | ei_status.reg_offset = fwrd4_offsets; | |
1da177e4 | 592 | break; |
2964db0f FT |
593 | |
594 | case MAC8390_INTERLAN: | |
595 | /* 16 bit memory, register map is forward */ | |
596 | ei_status.reset_8390 = &interlan_reset; | |
597 | ei_status.block_input = &slow_sane_block_input; | |
598 | ei_status.block_output = &slow_sane_block_output; | |
599 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
600 | ei_status.reg_offset = fwrd4_offsets; | |
601 | break; | |
602 | ||
1da177e4 | 603 | default: |
2964db0f | 604 | printk(KERN_ERR "Card type %s is unsupported, sorry\n", ndev->board->name); |
1da177e4 LT |
605 | return -ENODEV; |
606 | } | |
6aa20a22 | 607 | |
8c6270f9 | 608 | __NS8390_init(dev, 0); |
1da177e4 LT |
609 | |
610 | /* Good, done, now spit out some messages */ | |
611 | printk(KERN_INFO "%s: %s in slot %X (type %s)\n", | |
612 | dev->name, ndev->board->name, ndev->board->slot, cardname[type]); | |
613 | printk(KERN_INFO "MAC "); | |
614 | { | |
615 | int i; | |
616 | for (i = 0; i < 6; i++) { | |
617 | printk("%2.2x", dev->dev_addr[i]); | |
618 | if (i < 5) | |
619 | printk(":"); | |
620 | } | |
621 | } | |
2964db0f FT |
622 | printk(" IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", |
623 | dev->irq, (int)((dev->mem_end - dev->mem_start)/0x1000) * 4, | |
624 | dev->mem_start, access_bitmode?32:16); | |
1da177e4 LT |
625 | return 0; |
626 | } | |
627 | ||
628 | static int mac8390_open(struct net_device *dev) | |
629 | { | |
8c6270f9 AV |
630 | __ei_open(dev); |
631 | if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) { | |
1da177e4 LT |
632 | printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq); |
633 | return -EAGAIN; | |
6aa20a22 | 634 | } |
1da177e4 LT |
635 | return 0; |
636 | } | |
637 | ||
638 | static int mac8390_close(struct net_device *dev) | |
639 | { | |
640 | free_irq(dev->irq, dev); | |
8c6270f9 | 641 | __ei_close(dev); |
1da177e4 LT |
642 | return 0; |
643 | } | |
644 | ||
645 | static void mac8390_no_reset(struct net_device *dev) | |
646 | { | |
647 | ei_status.txing = 0; | |
648 | if (ei_debug > 1) | |
649 | printk("reset not supported\n"); | |
650 | return; | |
651 | } | |
652 | ||
2964db0f FT |
653 | static void interlan_reset(struct net_device *dev) |
654 | { | |
655 | unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq)); | |
656 | if (ei_debug > 1) | |
657 | printk("Need to reset the NS8390 t=%lu...", jiffies); | |
658 | ei_status.txing = 0; | |
659 | target[0xC0000] = 0; | |
660 | if (ei_debug > 1) | |
661 | printk("reset complete\n"); | |
662 | return; | |
663 | } | |
664 | ||
1da177e4 LT |
665 | /* dayna_memcpy_fromio/dayna_memcpy_toio */ |
666 | /* directly from daynaport.c by Alan Cox */ | |
667 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count) | |
668 | { | |
09cc07a5 AV |
669 | volatile unsigned char *ptr; |
670 | unsigned char *target=to; | |
1da177e4 | 671 | from<<=1; /* word, skip overhead */ |
09cc07a5 | 672 | ptr=(unsigned char *)(dev->mem_start+from); |
1da177e4 LT |
673 | /* Leading byte? */ |
674 | if (from&2) { | |
09cc07a5 AV |
675 | *target++ = ptr[-1]; |
676 | ptr += 2; | |
1da177e4 LT |
677 | count--; |
678 | } | |
679 | while(count>=2) | |
680 | { | |
09cc07a5 AV |
681 | *(unsigned short *)target = *(unsigned short volatile *)ptr; |
682 | ptr += 4; /* skip cruft */ | |
683 | target += 2; | |
1da177e4 LT |
684 | count-=2; |
685 | } | |
686 | /* Trailing byte? */ | |
687 | if(count) | |
09cc07a5 | 688 | *target = *ptr; |
1da177e4 LT |
689 | } |
690 | ||
691 | static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count) | |
692 | { | |
693 | volatile unsigned short *ptr; | |
09cc07a5 | 694 | const unsigned char *src=from; |
1da177e4 LT |
695 | to<<=1; /* word, skip overhead */ |
696 | ptr=(unsigned short *)(dev->mem_start+to); | |
697 | /* Leading byte? */ | |
698 | if (to&2) { /* avoid a byte write (stomps on other data) */ | |
09cc07a5 | 699 | ptr[-1] = (ptr[-1]&0xFF00)|*src++; |
1da177e4 LT |
700 | ptr++; |
701 | count--; | |
702 | } | |
703 | while(count>=2) | |
704 | { | |
09cc07a5 | 705 | *ptr++=*(unsigned short *)src; /* Copy and */ |
1da177e4 | 706 | ptr++; /* skip cruft */ |
09cc07a5 | 707 | src += 2; |
1da177e4 LT |
708 | count-=2; |
709 | } | |
710 | /* Trailing byte? */ | |
711 | if(count) | |
712 | { | |
1da177e4 | 713 | /* card doesn't like byte writes */ |
09cc07a5 | 714 | *ptr=(*ptr&0x00FF)|(*src << 8); |
1da177e4 LT |
715 | } |
716 | } | |
717 | ||
718 | /* sane block input/output */ | |
719 | static void sane_get_8390_hdr(struct net_device *dev, | |
720 | struct e8390_pkt_hdr *hdr, int ring_page) | |
721 | { | |
722 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
723 | memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4); | |
724 | /* Fix endianness */ | |
725 | hdr->count = swab16(hdr->count); | |
726 | } | |
727 | ||
728 | static void sane_block_input(struct net_device *dev, int count, | |
729 | struct sk_buff *skb, int ring_offset) | |
730 | { | |
731 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
732 | unsigned long xfer_start = xfer_base + dev->mem_start; | |
733 | ||
734 | if (xfer_start + count > ei_status.rmem_end) { | |
735 | /* We must wrap the input move. */ | |
736 | int semi_count = ei_status.rmem_end - xfer_start; | |
737 | memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count); | |
738 | count -= semi_count; | |
739 | memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count); | |
740 | } else { | |
741 | memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count); | |
742 | } | |
743 | } | |
744 | ||
745 | static void sane_block_output(struct net_device *dev, int count, | |
746 | const unsigned char *buf, int start_page) | |
747 | { | |
748 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 749 | |
1da177e4 LT |
750 | memcpy_toio((char *)dev->mem_start + shmem, buf, count); |
751 | } | |
752 | ||
753 | /* dayna block input/output */ | |
754 | static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) | |
755 | { | |
756 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
757 | ||
758 | dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4); | |
759 | /* Fix endianness */ | |
760 | hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8); | |
761 | } | |
762 | ||
763 | static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) | |
764 | { | |
765 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
766 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
767 | ||
768 | /* Note the offset math is done in card memory space which is word | |
769 | per long onto our space. */ | |
770 | ||
771 | if (xfer_start + count > ei_status.rmem_end) | |
772 | { | |
773 | /* We must wrap the input move. */ | |
774 | int semi_count = ei_status.rmem_end - xfer_start; | |
775 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); | |
776 | count -= semi_count; | |
777 | dayna_memcpy_fromcard(dev, skb->data + semi_count, | |
778 | ei_status.rmem_start - dev->mem_start, | |
779 | count); | |
780 | } | |
781 | else | |
782 | { | |
783 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); | |
784 | } | |
785 | } | |
786 | ||
787 | static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
788 | int start_page) | |
789 | { | |
790 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 791 | |
1da177e4 LT |
792 | dayna_memcpy_tocard(dev, shmem, buf, count); |
793 | } | |
794 | ||
795 | /* Cabletron block I/O */ | |
6aa20a22 | 796 | static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, |
1da177e4 LT |
797 | int ring_page) |
798 | { | |
799 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
800 | word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4); | |
801 | /* Register endianism - fix here rather than 8390.c */ | |
802 | hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); | |
803 | } | |
804 | ||
805 | static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb, | |
806 | int ring_offset) | |
807 | { | |
808 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
809 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
810 | ||
811 | if (xfer_start + count > ei_status.rmem_end) | |
812 | { | |
813 | /* We must wrap the input move. */ | |
814 | int semi_count = ei_status.rmem_end - xfer_start; | |
815 | word_memcpy_fromcard(skb->data, (char *)dev->mem_start + | |
816 | xfer_base, semi_count); | |
817 | count -= semi_count; | |
818 | word_memcpy_fromcard(skb->data + semi_count, | |
819 | (char *)ei_status.rmem_start, count); | |
820 | } | |
821 | else | |
822 | { | |
823 | word_memcpy_fromcard(skb->data, (char *)dev->mem_start + | |
824 | xfer_base, count); | |
825 | } | |
826 | } | |
827 | ||
828 | static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf, | |
829 | int start_page) | |
830 | { | |
831 | long shmem = (start_page - WD_START_PG)<<8; | |
832 | ||
833 | word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count); | |
834 | } | |
835 | ||
836 | static void word_memcpy_tocard(void *tp, const void *fp, int count) | |
837 | { | |
838 | volatile unsigned short *to = tp; | |
839 | const unsigned short *from = fp; | |
840 | ||
841 | count++; | |
842 | count/=2; | |
843 | ||
844 | while(count--) | |
845 | *to++=*from++; | |
846 | } | |
847 | ||
848 | static void word_memcpy_fromcard(void *tp, const void *fp, int count) | |
849 | { | |
850 | unsigned short *to = tp; | |
851 | const volatile unsigned short *from = fp; | |
852 | ||
853 | count++; | |
854 | count/=2; | |
855 | ||
856 | while(count--) | |
857 | *to++=*from++; | |
858 | } | |
859 | ||
6aa20a22 | 860 |