]>
Commit | Line | Data |
---|---|---|
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 | ||
10 | /* 2000-02-28: support added for Dayna and Kinetics cards by | |
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 | |
15 | * and fixed access to Sonic Sys card which masquerades as a Farallon | |
16 | * by rayk@knightsmanor.org */ | |
17 | /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */ | |
18 | /* 2003-12-26: Make sure Asante cards always work. */ | |
19 | ||
20 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/kernel.h> | |
24 | #include <linux/types.h> | |
25 | #include <linux/fcntl.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/ptrace.h> | |
28 | #include <linux/ioport.h> | |
29 | #include <linux/nubus.h> | |
30 | #include <linux/in.h> | |
31 | #include <linux/string.h> | |
32 | #include <linux/errno.h> | |
33 | #include <linux/init.h> | |
34 | #include <linux/netdevice.h> | |
35 | #include <linux/etherdevice.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/bitops.h> | |
38 | #include <linux/io.h> | |
39 | ||
40 | #include <asm/system.h> | |
41 | #include <asm/dma.h> | |
42 | #include <asm/hwtest.h> | |
43 | #include <asm/macints.h> | |
44 | ||
45 | static char version[] = | |
46 | "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; | |
47 | ||
48 | #define EI_SHIFT(x) (ei_local->reg_offset[x]) | |
49 | #define ei_inb(port) in_8(port) | |
50 | #define ei_outb(val, port) out_8(port, val) | |
51 | #define ei_inb_p(port) in_8(port) | |
52 | #define ei_outb_p(val, port) out_8(port, val) | |
53 | ||
54 | #include "lib8390.c" | |
55 | ||
56 | #define WD_START_PG 0x00 /* First page of TX buffer */ | |
57 | #define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */ | |
58 | #define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ | |
59 | #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG | |
60 | /* First page of TX buffer */ | |
61 | ||
62 | /* | |
63 | * Unfortunately it seems we have to hardcode these for the moment | |
64 | * Shouldn't the card know about this? | |
65 | * Does anyone know where to read it off the card? | |
66 | * Do we trust the data provided by the card? | |
67 | */ | |
68 | ||
69 | #define DAYNA_8390_BASE 0x80000 | |
70 | #define DAYNA_8390_MEM 0x00000 | |
71 | ||
72 | #define CABLETRON_8390_BASE 0x90000 | |
73 | #define CABLETRON_8390_MEM 0x00000 | |
74 | ||
75 | #define INTERLAN_8390_BASE 0xE0000 | |
76 | #define INTERLAN_8390_MEM 0xD0000 | |
77 | ||
78 | enum mac8390_type { | |
79 | MAC8390_NONE = -1, | |
80 | MAC8390_APPLE, | |
81 | MAC8390_ASANTE, | |
82 | MAC8390_FARALLON, | |
83 | MAC8390_CABLETRON, | |
84 | MAC8390_DAYNA, | |
85 | MAC8390_INTERLAN, | |
86 | MAC8390_KINETICS, | |
87 | }; | |
88 | ||
89 | static const char *cardname[] = { | |
90 | "apple", | |
91 | "asante", | |
92 | "farallon", | |
93 | "cabletron", | |
94 | "dayna", | |
95 | "interlan", | |
96 | "kinetics", | |
97 | }; | |
98 | ||
99 | static const int word16[] = { | |
100 | 1, /* apple */ | |
101 | 1, /* asante */ | |
102 | 1, /* farallon */ | |
103 | 1, /* cabletron */ | |
104 | 0, /* dayna */ | |
105 | 1, /* interlan */ | |
106 | 0, /* kinetics */ | |
107 | }; | |
108 | ||
109 | /* on which cards do we use NuBus resources? */ | |
110 | static const int useresources[] = { | |
111 | 1, /* apple */ | |
112 | 1, /* asante */ | |
113 | 1, /* farallon */ | |
114 | 0, /* cabletron */ | |
115 | 0, /* dayna */ | |
116 | 0, /* interlan */ | |
117 | 0, /* kinetics */ | |
118 | }; | |
119 | ||
120 | enum mac8390_access { | |
121 | ACCESS_UNKNOWN = 0, | |
122 | ACCESS_32, | |
123 | ACCESS_16, | |
124 | }; | |
125 | ||
126 | extern int mac8390_memtest(struct net_device *dev); | |
127 | static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev, | |
128 | enum mac8390_type type); | |
129 | ||
130 | static int mac8390_open(struct net_device *dev); | |
131 | static int mac8390_close(struct net_device *dev); | |
132 | static void mac8390_no_reset(struct net_device *dev); | |
133 | static void interlan_reset(struct net_device *dev); | |
134 | ||
135 | /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/ | |
136 | static void sane_get_8390_hdr(struct net_device *dev, | |
137 | struct e8390_pkt_hdr *hdr, int ring_page); | |
138 | static void sane_block_input(struct net_device *dev, int count, | |
139 | struct sk_buff *skb, int ring_offset); | |
140 | static void sane_block_output(struct net_device *dev, int count, | |
141 | const unsigned char *buf, const int start_page); | |
142 | ||
143 | /* dayna_memcpy to and from card */ | |
144 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, | |
145 | int from, int count); | |
146 | static void dayna_memcpy_tocard(struct net_device *dev, int to, | |
147 | const void *from, int count); | |
148 | ||
149 | /* Dayna - Dayna/Kinetics use this */ | |
150 | static void dayna_get_8390_hdr(struct net_device *dev, | |
151 | struct e8390_pkt_hdr *hdr, int ring_page); | |
152 | static void dayna_block_input(struct net_device *dev, int count, | |
153 | struct sk_buff *skb, int ring_offset); | |
154 | static void dayna_block_output(struct net_device *dev, int count, | |
155 | const unsigned char *buf, int start_page); | |
156 | ||
157 | #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) | |
158 | #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) | |
159 | ||
160 | #define memcmp_withio(a, b, c) memcmp((a), (void *)(b), (c)) | |
161 | ||
162 | /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ | |
163 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
164 | struct e8390_pkt_hdr *hdr, int ring_page); | |
165 | static void slow_sane_block_input(struct net_device *dev, int count, | |
166 | struct sk_buff *skb, int ring_offset); | |
167 | static void slow_sane_block_output(struct net_device *dev, int count, | |
168 | const unsigned char *buf, int start_page); | |
169 | static void word_memcpy_tocard(unsigned long tp, const void *fp, int count); | |
170 | static void word_memcpy_fromcard(void *tp, unsigned long fp, int count); | |
171 | ||
172 | static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) | |
173 | { | |
174 | switch (dev->dr_sw) { | |
175 | case NUBUS_DRSW_3COM: | |
176 | switch (dev->dr_hw) { | |
177 | case NUBUS_DRHW_APPLE_SONIC_NB: | |
178 | case NUBUS_DRHW_APPLE_SONIC_LC: | |
179 | case NUBUS_DRHW_SONNET: | |
180 | return MAC8390_NONE; | |
181 | break; | |
182 | default: | |
183 | return MAC8390_APPLE; | |
184 | break; | |
185 | } | |
186 | break; | |
187 | ||
188 | case NUBUS_DRSW_APPLE: | |
189 | switch (dev->dr_hw) { | |
190 | case NUBUS_DRHW_ASANTE_LC: | |
191 | return MAC8390_NONE; | |
192 | break; | |
193 | case NUBUS_DRHW_CABLETRON: | |
194 | return MAC8390_CABLETRON; | |
195 | break; | |
196 | default: | |
197 | return MAC8390_APPLE; | |
198 | break; | |
199 | } | |
200 | break; | |
201 | ||
202 | case NUBUS_DRSW_ASANTE: | |
203 | return MAC8390_ASANTE; | |
204 | break; | |
205 | ||
206 | case NUBUS_DRSW_TECHWORKS: | |
207 | case NUBUS_DRSW_DAYNA2: | |
208 | case NUBUS_DRSW_DAYNA_LC: | |
209 | if (dev->dr_hw == NUBUS_DRHW_CABLETRON) | |
210 | return MAC8390_CABLETRON; | |
211 | else | |
212 | return MAC8390_APPLE; | |
213 | break; | |
214 | ||
215 | case NUBUS_DRSW_FARALLON: | |
216 | return MAC8390_FARALLON; | |
217 | break; | |
218 | ||
219 | case NUBUS_DRSW_KINETICS: | |
220 | switch (dev->dr_hw) { | |
221 | case NUBUS_DRHW_INTERLAN: | |
222 | return MAC8390_INTERLAN; | |
223 | break; | |
224 | default: | |
225 | return MAC8390_KINETICS; | |
226 | break; | |
227 | } | |
228 | break; | |
229 | ||
230 | case NUBUS_DRSW_DAYNA: | |
231 | /* | |
232 | * These correspond to Dayna Sonic cards | |
233 | * which use the macsonic driver | |
234 | */ | |
235 | if (dev->dr_hw == NUBUS_DRHW_SMC9194 || | |
236 | dev->dr_hw == NUBUS_DRHW_INTERLAN) | |
237 | return MAC8390_NONE; | |
238 | else | |
239 | return MAC8390_DAYNA; | |
240 | break; | |
241 | } | |
242 | return MAC8390_NONE; | |
243 | } | |
244 | ||
245 | static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) | |
246 | { | |
247 | unsigned long outdata = 0xA5A0B5B0; | |
248 | unsigned long indata = 0x00000000; | |
249 | /* Try writing 32 bits */ | |
250 | memcpy_toio(membase, &outdata, 4); | |
251 | /* Now compare them */ | |
252 | if (memcmp_withio(&outdata, membase, 4) == 0) | |
253 | return ACCESS_32; | |
254 | /* Write 16 bit output */ | |
255 | word_memcpy_tocard(membase, &outdata, 4); | |
256 | /* Now read it back */ | |
257 | word_memcpy_fromcard(&indata, membase, 4); | |
258 | if (outdata == indata) | |
259 | return ACCESS_16; | |
260 | return ACCESS_UNKNOWN; | |
261 | } | |
262 | ||
263 | static int __init mac8390_memsize(unsigned long membase) | |
264 | { | |
265 | unsigned long flags; | |
266 | int i, j; | |
267 | ||
268 | local_irq_save(flags); | |
269 | /* Check up to 32K in 4K increments */ | |
270 | for (i = 0; i < 8; i++) { | |
271 | volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000)); | |
272 | ||
273 | /* Unwriteable - we have a fully decoded card and the | |
274 | RAM end located */ | |
275 | if (hwreg_present(m) == 0) | |
276 | break; | |
277 | ||
278 | /* write a distinctive byte */ | |
279 | *m = 0xA5A0 | i; | |
280 | /* check that we read back what we wrote */ | |
281 | if (*m != (0xA5A0 | i)) | |
282 | break; | |
283 | ||
284 | /* check for partial decode and wrap */ | |
285 | for (j = 0; j < i; j++) { | |
286 | volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000)); | |
287 | if (*p != (0xA5A0 | j)) | |
288 | break; | |
289 | } | |
290 | } | |
291 | local_irq_restore(flags); | |
292 | /* | |
293 | * in any case, we stopped once we tried one block too many, | |
294 | * or once we reached 32K | |
295 | */ | |
296 | return i * 0x1000; | |
297 | } | |
298 | ||
299 | static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev, | |
300 | enum mac8390_type cardtype) | |
301 | { | |
302 | struct nubus_dir dir; | |
303 | struct nubus_dirent ent; | |
304 | int offset; | |
305 | volatile unsigned short *i; | |
306 | ||
307 | printk_once(KERN_INFO pr_fmt("%s"), version); | |
308 | ||
309 | dev->irq = SLOT2IRQ(ndev->board->slot); | |
310 | /* This is getting to be a habit */ | |
311 | dev->base_addr = (ndev->board->slot_addr | | |
312 | ((ndev->board->slot & 0xf) << 20)); | |
313 | ||
314 | /* | |
315 | * Get some Nubus info - we will trust the card's idea | |
316 | * of where its memory and registers are. | |
317 | */ | |
318 | ||
319 | if (nubus_get_func_dir(ndev, &dir) == -1) { | |
320 | pr_err("%s: Unable to get Nubus functional directory for slot %X!\n", | |
321 | dev->name, ndev->board->slot); | |
322 | return false; | |
323 | } | |
324 | ||
325 | /* Get the MAC address */ | |
326 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) { | |
327 | pr_info("%s: Couldn't get MAC address!\n", dev->name); | |
328 | return false; | |
329 | } | |
330 | ||
331 | nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); | |
332 | ||
333 | if (useresources[cardtype] == 1) { | |
334 | nubus_rewinddir(&dir); | |
335 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, | |
336 | &ent) == -1) { | |
337 | pr_err("%s: Memory offset resource for slot %X not found!\n", | |
338 | dev->name, ndev->board->slot); | |
339 | return false; | |
340 | } | |
341 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
342 | dev->mem_start = dev->base_addr + offset; | |
343 | /* yes, this is how the Apple driver does it */ | |
344 | dev->base_addr = dev->mem_start + 0x10000; | |
345 | nubus_rewinddir(&dir); | |
346 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, | |
347 | &ent) == -1) { | |
348 | pr_info("%s: Memory length resource for slot %X not found, probing\n", | |
349 | dev->name, ndev->board->slot); | |
350 | offset = mac8390_memsize(dev->mem_start); | |
351 | } else { | |
352 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
353 | } | |
354 | dev->mem_end = dev->mem_start + offset; | |
355 | } else { | |
356 | switch (cardtype) { | |
357 | case MAC8390_KINETICS: | |
358 | case MAC8390_DAYNA: /* it's the same */ | |
359 | dev->base_addr = (int)(ndev->board->slot_addr + | |
360 | DAYNA_8390_BASE); | |
361 | dev->mem_start = (int)(ndev->board->slot_addr + | |
362 | DAYNA_8390_MEM); | |
363 | dev->mem_end = dev->mem_start + | |
364 | mac8390_memsize(dev->mem_start); | |
365 | break; | |
366 | case MAC8390_INTERLAN: | |
367 | dev->base_addr = (int)(ndev->board->slot_addr + | |
368 | INTERLAN_8390_BASE); | |
369 | dev->mem_start = (int)(ndev->board->slot_addr + | |
370 | INTERLAN_8390_MEM); | |
371 | dev->mem_end = dev->mem_start + | |
372 | mac8390_memsize(dev->mem_start); | |
373 | break; | |
374 | case MAC8390_CABLETRON: | |
375 | dev->base_addr = (int)(ndev->board->slot_addr + | |
376 | CABLETRON_8390_BASE); | |
377 | dev->mem_start = (int)(ndev->board->slot_addr + | |
378 | CABLETRON_8390_MEM); | |
379 | /* The base address is unreadable if 0x00 | |
380 | * has been written to the command register | |
381 | * Reset the chip by writing E8390_NODMA + | |
382 | * E8390_PAGE0 + E8390_STOP just to be | |
383 | * sure | |
384 | */ | |
385 | i = (void *)dev->base_addr; | |
386 | *i = 0x21; | |
387 | dev->mem_end = dev->mem_start + | |
388 | mac8390_memsize(dev->mem_start); | |
389 | break; | |
390 | ||
391 | default: | |
392 | pr_err("Card type %s is unsupported, sorry\n", | |
393 | ndev->board->name); | |
394 | return false; | |
395 | } | |
396 | } | |
397 | ||
398 | return true; | |
399 | } | |
400 | ||
401 | struct net_device * __init mac8390_probe(int unit) | |
402 | { | |
403 | struct net_device *dev; | |
404 | struct nubus_dev *ndev = NULL; | |
405 | int err = -ENODEV; | |
406 | ||
407 | static unsigned int slots; | |
408 | ||
409 | enum mac8390_type cardtype; | |
410 | ||
411 | /* probably should check for Nubus instead */ | |
412 | ||
413 | if (!MACH_IS_MAC) | |
414 | return ERR_PTR(-ENODEV); | |
415 | ||
416 | dev = ____alloc_ei_netdev(0); | |
417 | if (!dev) | |
418 | return ERR_PTR(-ENOMEM); | |
419 | ||
420 | if (unit >= 0) | |
421 | sprintf(dev->name, "eth%d", unit); | |
422 | ||
423 | while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, | |
424 | ndev))) { | |
425 | /* Have we seen it already? */ | |
426 | if (slots & (1 << ndev->board->slot)) | |
427 | continue; | |
428 | slots |= 1 << ndev->board->slot; | |
429 | ||
430 | cardtype = mac8390_ident(ndev); | |
431 | if (cardtype == MAC8390_NONE) | |
432 | continue; | |
433 | ||
434 | if (!mac8390_init(dev, ndev, cardtype)) | |
435 | continue; | |
436 | ||
437 | /* Do the nasty 8390 stuff */ | |
438 | if (!mac8390_initdev(dev, ndev, cardtype)) | |
439 | break; | |
440 | } | |
441 | ||
442 | if (!ndev) | |
443 | goto out; | |
444 | err = register_netdev(dev); | |
445 | if (err) | |
446 | goto out; | |
447 | return dev; | |
448 | ||
449 | out: | |
450 | free_netdev(dev); | |
451 | return ERR_PTR(err); | |
452 | } | |
453 | ||
454 | #ifdef MODULE | |
455 | MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); | |
456 | MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); | |
457 | MODULE_LICENSE("GPL"); | |
458 | ||
459 | /* overkill, of course */ | |
460 | static struct net_device *dev_mac8390[15]; | |
461 | int init_module(void) | |
462 | { | |
463 | int i; | |
464 | for (i = 0; i < 15; i++) { | |
465 | struct net_device *dev = mac8390_probe(-1); | |
466 | if (IS_ERR(dev)) | |
467 | break; | |
468 | dev_mac890[i] = dev; | |
469 | } | |
470 | if (!i) { | |
471 | pr_notice("No useable cards found, driver NOT installed.\n"); | |
472 | return -ENODEV; | |
473 | } | |
474 | return 0; | |
475 | } | |
476 | ||
477 | void cleanup_module(void) | |
478 | { | |
479 | int i; | |
480 | for (i = 0; i < 15; i++) { | |
481 | struct net_device *dev = dev_mac890[i]; | |
482 | if (dev) { | |
483 | unregister_netdev(dev); | |
484 | free_netdev(dev); | |
485 | } | |
486 | } | |
487 | } | |
488 | ||
489 | #endif /* MODULE */ | |
490 | ||
491 | static const struct net_device_ops mac8390_netdev_ops = { | |
492 | .ndo_open = mac8390_open, | |
493 | .ndo_stop = mac8390_close, | |
494 | .ndo_start_xmit = __ei_start_xmit, | |
495 | .ndo_tx_timeout = __ei_tx_timeout, | |
496 | .ndo_get_stats = __ei_get_stats, | |
497 | .ndo_set_multicast_list = __ei_set_multicast_list, | |
498 | .ndo_validate_addr = eth_validate_addr, | |
499 | .ndo_set_mac_address = eth_mac_addr, | |
500 | .ndo_change_mtu = eth_change_mtu, | |
501 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
502 | .ndo_poll_controller = __ei_poll, | |
503 | #endif | |
504 | }; | |
505 | ||
506 | static int __init mac8390_initdev(struct net_device *dev, | |
507 | struct nubus_dev *ndev, | |
508 | enum mac8390_type type) | |
509 | { | |
510 | static u32 fwrd4_offsets[16] = { | |
511 | 0, 4, 8, 12, | |
512 | 16, 20, 24, 28, | |
513 | 32, 36, 40, 44, | |
514 | 48, 52, 56, 60 | |
515 | }; | |
516 | static u32 back4_offsets[16] = { | |
517 | 60, 56, 52, 48, | |
518 | 44, 40, 36, 32, | |
519 | 28, 24, 20, 16, | |
520 | 12, 8, 4, 0 | |
521 | }; | |
522 | static u32 fwrd2_offsets[16] = { | |
523 | 0, 2, 4, 6, | |
524 | 8, 10, 12, 14, | |
525 | 16, 18, 20, 22, | |
526 | 24, 26, 28, 30 | |
527 | }; | |
528 | ||
529 | int access_bitmode = 0; | |
530 | ||
531 | /* Now fill in our stuff */ | |
532 | dev->netdev_ops = &mac8390_netdev_ops; | |
533 | ||
534 | /* GAR, ei_status is actually a macro even though it looks global */ | |
535 | ei_status.name = cardname[type]; | |
536 | ei_status.word16 = word16[type]; | |
537 | ||
538 | /* Cabletron's TX/RX buffers are backwards */ | |
539 | if (type == MAC8390_CABLETRON) { | |
540 | ei_status.tx_start_page = CABLETRON_TX_START_PG; | |
541 | ei_status.rx_start_page = CABLETRON_RX_START_PG; | |
542 | ei_status.stop_page = CABLETRON_RX_STOP_PG; | |
543 | ei_status.rmem_start = dev->mem_start; | |
544 | ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; | |
545 | } else { | |
546 | ei_status.tx_start_page = WD_START_PG; | |
547 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
548 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
549 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | |
550 | ei_status.rmem_end = dev->mem_end; | |
551 | } | |
552 | ||
553 | /* Fill in model-specific information and functions */ | |
554 | switch (type) { | |
555 | case MAC8390_FARALLON: | |
556 | case MAC8390_APPLE: | |
557 | switch (mac8390_testio(dev->mem_start)) { | |
558 | case ACCESS_UNKNOWN: | |
559 | pr_err("Don't know how to access card memory!\n"); | |
560 | return -ENODEV; | |
561 | break; | |
562 | ||
563 | case ACCESS_16: | |
564 | /* 16 bit card, register map is reversed */ | |
565 | ei_status.reset_8390 = mac8390_no_reset; | |
566 | ei_status.block_input = slow_sane_block_input; | |
567 | ei_status.block_output = slow_sane_block_output; | |
568 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
569 | ei_status.reg_offset = back4_offsets; | |
570 | break; | |
571 | ||
572 | case ACCESS_32: | |
573 | /* 32 bit card, register map is reversed */ | |
574 | ei_status.reset_8390 = mac8390_no_reset; | |
575 | ei_status.block_input = sane_block_input; | |
576 | ei_status.block_output = sane_block_output; | |
577 | ei_status.get_8390_hdr = sane_get_8390_hdr; | |
578 | ei_status.reg_offset = back4_offsets; | |
579 | access_bitmode = 1; | |
580 | break; | |
581 | } | |
582 | break; | |
583 | ||
584 | case MAC8390_ASANTE: | |
585 | /* Some Asante cards pass the 32 bit test | |
586 | * but overwrite system memory when run at 32 bit. | |
587 | * so we run them all at 16 bit. | |
588 | */ | |
589 | ei_status.reset_8390 = mac8390_no_reset; | |
590 | ei_status.block_input = slow_sane_block_input; | |
591 | ei_status.block_output = slow_sane_block_output; | |
592 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
593 | ei_status.reg_offset = back4_offsets; | |
594 | break; | |
595 | ||
596 | case MAC8390_CABLETRON: | |
597 | /* 16 bit card, register map is short forward */ | |
598 | ei_status.reset_8390 = mac8390_no_reset; | |
599 | ei_status.block_input = slow_sane_block_input; | |
600 | ei_status.block_output = slow_sane_block_output; | |
601 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
602 | ei_status.reg_offset = fwrd2_offsets; | |
603 | break; | |
604 | ||
605 | case MAC8390_DAYNA: | |
606 | case MAC8390_KINETICS: | |
607 | /* 16 bit memory, register map is forward */ | |
608 | /* dayna and similar */ | |
609 | ei_status.reset_8390 = mac8390_no_reset; | |
610 | ei_status.block_input = dayna_block_input; | |
611 | ei_status.block_output = dayna_block_output; | |
612 | ei_status.get_8390_hdr = dayna_get_8390_hdr; | |
613 | ei_status.reg_offset = fwrd4_offsets; | |
614 | break; | |
615 | ||
616 | case MAC8390_INTERLAN: | |
617 | /* 16 bit memory, register map is forward */ | |
618 | ei_status.reset_8390 = interlan_reset; | |
619 | ei_status.block_input = slow_sane_block_input; | |
620 | ei_status.block_output = slow_sane_block_output; | |
621 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
622 | ei_status.reg_offset = fwrd4_offsets; | |
623 | break; | |
624 | ||
625 | default: | |
626 | pr_err("Card type %s is unsupported, sorry\n", | |
627 | ndev->board->name); | |
628 | return -ENODEV; | |
629 | } | |
630 | ||
631 | __NS8390_init(dev, 0); | |
632 | ||
633 | /* Good, done, now spit out some messages */ | |
634 | pr_info("%s: %s in slot %X (type %s)\n", | |
635 | dev->name, ndev->board->name, ndev->board->slot, | |
636 | cardname[type]); | |
637 | pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", | |
638 | dev->dev_addr, dev->irq, | |
639 | (unsigned int)(dev->mem_end - dev->mem_start) >> 10, | |
640 | dev->mem_start, access_bitmode ? 32 : 16); | |
641 | return 0; | |
642 | } | |
643 | ||
644 | static int mac8390_open(struct net_device *dev) | |
645 | { | |
646 | int err; | |
647 | ||
648 | __ei_open(dev); | |
649 | err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev); | |
650 | if (err) | |
651 | pr_err("%s: unable to get IRQ %d\n", dev->name, dev->irq); | |
652 | return err; | |
653 | } | |
654 | ||
655 | static int mac8390_close(struct net_device *dev) | |
656 | { | |
657 | free_irq(dev->irq, dev); | |
658 | __ei_close(dev); | |
659 | return 0; | |
660 | } | |
661 | ||
662 | static void mac8390_no_reset(struct net_device *dev) | |
663 | { | |
664 | ei_status.txing = 0; | |
665 | if (ei_debug > 1) | |
666 | pr_info("reset not supported\n"); | |
667 | } | |
668 | ||
669 | static void interlan_reset(struct net_device *dev) | |
670 | { | |
671 | unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq)); | |
672 | if (ei_debug > 1) | |
673 | pr_info("Need to reset the NS8390 t=%lu...", jiffies); | |
674 | ei_status.txing = 0; | |
675 | target[0xC0000] = 0; | |
676 | if (ei_debug > 1) | |
677 | pr_cont("reset complete\n"); | |
678 | } | |
679 | ||
680 | /* dayna_memcpy_fromio/dayna_memcpy_toio */ | |
681 | /* directly from daynaport.c by Alan Cox */ | |
682 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, | |
683 | int count) | |
684 | { | |
685 | volatile unsigned char *ptr; | |
686 | unsigned char *target = to; | |
687 | from <<= 1; /* word, skip overhead */ | |
688 | ptr = (unsigned char *)(dev->mem_start+from); | |
689 | /* Leading byte? */ | |
690 | if (from & 2) { | |
691 | *target++ = ptr[-1]; | |
692 | ptr += 2; | |
693 | count--; | |
694 | } | |
695 | while (count >= 2) { | |
696 | *(unsigned short *)target = *(unsigned short volatile *)ptr; | |
697 | ptr += 4; /* skip cruft */ | |
698 | target += 2; | |
699 | count -= 2; | |
700 | } | |
701 | /* Trailing byte? */ | |
702 | if (count) | |
703 | *target = *ptr; | |
704 | } | |
705 | ||
706 | static void dayna_memcpy_tocard(struct net_device *dev, int to, | |
707 | const void *from, int count) | |
708 | { | |
709 | volatile unsigned short *ptr; | |
710 | const unsigned char *src = from; | |
711 | to <<= 1; /* word, skip overhead */ | |
712 | ptr = (unsigned short *)(dev->mem_start+to); | |
713 | /* Leading byte? */ | |
714 | if (to & 2) { /* avoid a byte write (stomps on other data) */ | |
715 | ptr[-1] = (ptr[-1]&0xFF00)|*src++; | |
716 | ptr++; | |
717 | count--; | |
718 | } | |
719 | while (count >= 2) { | |
720 | *ptr++ = *(unsigned short *)src; /* Copy and */ | |
721 | ptr++; /* skip cruft */ | |
722 | src += 2; | |
723 | count -= 2; | |
724 | } | |
725 | /* Trailing byte? */ | |
726 | if (count) { | |
727 | /* card doesn't like byte writes */ | |
728 | *ptr = (*ptr & 0x00FF) | (*src << 8); | |
729 | } | |
730 | } | |
731 | ||
732 | /* sane block input/output */ | |
733 | static void sane_get_8390_hdr(struct net_device *dev, | |
734 | struct e8390_pkt_hdr *hdr, int ring_page) | |
735 | { | |
736 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
737 | memcpy_fromio(hdr, dev->mem_start + hdr_start, 4); | |
738 | /* Fix endianness */ | |
739 | hdr->count = swab16(hdr->count); | |
740 | } | |
741 | ||
742 | static void sane_block_input(struct net_device *dev, int count, | |
743 | struct sk_buff *skb, int ring_offset) | |
744 | { | |
745 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
746 | unsigned long xfer_start = xfer_base + dev->mem_start; | |
747 | ||
748 | if (xfer_start + count > ei_status.rmem_end) { | |
749 | /* We must wrap the input move. */ | |
750 | int semi_count = ei_status.rmem_end - xfer_start; | |
751 | memcpy_fromio(skb->data, dev->mem_start + xfer_base, | |
752 | semi_count); | |
753 | count -= semi_count; | |
754 | memcpy_fromio(skb->data + semi_count, ei_status.rmem_start, | |
755 | count); | |
756 | } else { | |
757 | memcpy_fromio(skb->data, dev->mem_start + xfer_base, count); | |
758 | } | |
759 | } | |
760 | ||
761 | static void sane_block_output(struct net_device *dev, int count, | |
762 | const unsigned char *buf, int start_page) | |
763 | { | |
764 | long shmem = (start_page - WD_START_PG)<<8; | |
765 | ||
766 | memcpy_toio(dev->mem_start + shmem, buf, count); | |
767 | } | |
768 | ||
769 | /* dayna block input/output */ | |
770 | static void dayna_get_8390_hdr(struct net_device *dev, | |
771 | struct e8390_pkt_hdr *hdr, int ring_page) | |
772 | { | |
773 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
774 | ||
775 | dayna_memcpy_fromcard(dev, hdr, hdr_start, 4); | |
776 | /* Fix endianness */ | |
777 | hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8); | |
778 | } | |
779 | ||
780 | static void dayna_block_input(struct net_device *dev, int count, | |
781 | struct sk_buff *skb, int ring_offset) | |
782 | { | |
783 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
784 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
785 | ||
786 | /* Note the offset math is done in card memory space which is word | |
787 | per long onto our space. */ | |
788 | ||
789 | if (xfer_start + count > ei_status.rmem_end) { | |
790 | /* We must wrap the input move. */ | |
791 | int semi_count = ei_status.rmem_end - xfer_start; | |
792 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); | |
793 | count -= semi_count; | |
794 | dayna_memcpy_fromcard(dev, skb->data + semi_count, | |
795 | ei_status.rmem_start - dev->mem_start, | |
796 | count); | |
797 | } else { | |
798 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); | |
799 | } | |
800 | } | |
801 | ||
802 | static void dayna_block_output(struct net_device *dev, int count, | |
803 | const unsigned char *buf, | |
804 | int start_page) | |
805 | { | |
806 | long shmem = (start_page - WD_START_PG)<<8; | |
807 | ||
808 | dayna_memcpy_tocard(dev, shmem, buf, count); | |
809 | } | |
810 | ||
811 | /* Cabletron block I/O */ | |
812 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
813 | struct e8390_pkt_hdr *hdr, | |
814 | int ring_page) | |
815 | { | |
816 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
817 | word_memcpy_fromcard(hdr, dev->mem_start + hdr_start, 4); | |
818 | /* Register endianism - fix here rather than 8390.c */ | |
819 | hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); | |
820 | } | |
821 | ||
822 | static void slow_sane_block_input(struct net_device *dev, int count, | |
823 | struct sk_buff *skb, int ring_offset) | |
824 | { | |
825 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
826 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
827 | ||
828 | if (xfer_start + count > ei_status.rmem_end) { | |
829 | /* We must wrap the input move. */ | |
830 | int semi_count = ei_status.rmem_end - xfer_start; | |
831 | word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, | |
832 | semi_count); | |
833 | count -= semi_count; | |
834 | word_memcpy_fromcard(skb->data + semi_count, | |
835 | ei_status.rmem_start, count); | |
836 | } else { | |
837 | word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, | |
838 | count); | |
839 | } | |
840 | } | |
841 | ||
842 | static void slow_sane_block_output(struct net_device *dev, int count, | |
843 | const unsigned char *buf, int start_page) | |
844 | { | |
845 | long shmem = (start_page - WD_START_PG)<<8; | |
846 | ||
847 | word_memcpy_tocard(dev->mem_start + shmem, buf, count); | |
848 | } | |
849 | ||
850 | static void word_memcpy_tocard(unsigned long tp, const void *fp, int count) | |
851 | { | |
852 | volatile unsigned short *to = (void *)tp; | |
853 | const unsigned short *from = fp; | |
854 | ||
855 | count++; | |
856 | count /= 2; | |
857 | ||
858 | while (count--) | |
859 | *to++ = *from++; | |
860 | } | |
861 | ||
862 | static void word_memcpy_fromcard(void *tp, unsigned long fp, int count) | |
863 | { | |
864 | unsigned short *to = tp; | |
865 | const volatile unsigned short *from = (const void *)fp; | |
866 | ||
867 | count++; | |
868 | count /= 2; | |
869 | ||
870 | while (count--) | |
871 | *to++ = *from++; | |
872 | } | |
873 | ||
874 |