Commit | Line | Data |
---|---|---|
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 | |
18c00191 JP |
20 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
21 | ||
1da177e4 LT |
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> | |
1da177e4 LT |
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> | |
8e4d9696 | 38 | #include <linux/io.h> |
1da177e4 LT |
39 | |
40 | #include <asm/system.h> | |
1da177e4 LT |
41 | #include <asm/dma.h> |
42 | #include <asm/hwtest.h> | |
43 | #include <asm/macints.h> | |
44 | ||
8c6270f9 | 45 | static char version[] = |
18c00191 | 46 | "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; |
8c6270f9 AV |
47 | |
48 | #define EI_SHIFT(x) (ei_local->reg_offset[x]) | |
8e4d9696 JP |
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) | |
8c6270f9 AV |
53 | |
54 | #include "lib8390.c" | |
1da177e4 LT |
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 */ | |
8e4d9696 JP |
59 | #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG |
60 | /* First page of TX buffer */ | |
1da177e4 | 61 | |
8e4d9696 JP |
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 | */ | |
1da177e4 LT |
68 | |
69 | #define DAYNA_8390_BASE 0x80000 | |
70 | #define DAYNA_8390_MEM 0x00000 | |
71 | ||
6aa20a22 | 72 | #define CABLETRON_8390_BASE 0x90000 |
1da177e4 LT |
73 | #define CABLETRON_8390_MEM 0x00000 |
74 | ||
2964db0f FT |
75 | #define INTERLAN_8390_BASE 0xE0000 |
76 | #define INTERLAN_8390_MEM 0xD0000 | |
77 | ||
1da177e4 LT |
78 | enum mac8390_type { |
79 | MAC8390_NONE = -1, | |
80 | MAC8390_APPLE, | |
81 | MAC8390_ASANTE, | |
2964db0f | 82 | MAC8390_FARALLON, |
1da177e4 LT |
83 | MAC8390_CABLETRON, |
84 | MAC8390_DAYNA, | |
85 | MAC8390_INTERLAN, | |
86 | MAC8390_KINETICS, | |
1da177e4 LT |
87 | }; |
88 | ||
8e4d9696 | 89 | static const char *cardname[] = { |
1da177e4 LT |
90 | "apple", |
91 | "asante", | |
92 | "farallon", | |
93 | "cabletron", | |
94 | "dayna", | |
95 | "interlan", | |
96 | "kinetics", | |
1da177e4 LT |
97 | }; |
98 | ||
8e4d9696 | 99 | static const int word16[] = { |
1da177e4 LT |
100 | 1, /* apple */ |
101 | 1, /* asante */ | |
102 | 1, /* farallon */ | |
103 | 1, /* cabletron */ | |
104 | 0, /* dayna */ | |
105 | 1, /* interlan */ | |
106 | 0, /* kinetics */ | |
1da177e4 LT |
107 | }; |
108 | ||
109 | /* on which cards do we use NuBus resources? */ | |
8e4d9696 | 110 | static const int useresources[] = { |
1da177e4 LT |
111 | 1, /* apple */ |
112 | 1, /* asante */ | |
113 | 1, /* farallon */ | |
114 | 0, /* cabletron */ | |
115 | 0, /* dayna */ | |
116 | 0, /* interlan */ | |
117 | 0, /* kinetics */ | |
2964db0f FT |
118 | }; |
119 | ||
120 | enum mac8390_access { | |
121 | ACCESS_UNKNOWN = 0, | |
122 | ACCESS_32, | |
123 | ACCESS_16, | |
1da177e4 LT |
124 | }; |
125 | ||
8e4d9696 JP |
126 | extern int mac8390_memtest(struct net_device *dev); |
127 | static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev, | |
1da177e4 LT |
128 | enum mac8390_type type); |
129 | ||
8e4d9696 JP |
130 | static int mac8390_open(struct net_device *dev); |
131 | static int mac8390_close(struct net_device *dev); | |
1da177e4 | 132 | static void mac8390_no_reset(struct net_device *dev); |
2964db0f | 133 | static void interlan_reset(struct net_device *dev); |
1da177e4 | 134 | |
2964db0f | 135 | /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/ |
1da177e4 LT |
136 | static void sane_get_8390_hdr(struct net_device *dev, |
137 | struct e8390_pkt_hdr *hdr, int ring_page); | |
8e4d9696 JP |
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); | |
1da177e4 LT |
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 | ||
8e4d9696 JP |
157 | #define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c)) |
158 | #define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c)) | |
1da177e4 LT |
159 | |
160 | /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ | |
161 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
162 | struct e8390_pkt_hdr *hdr, int ring_page); | |
163 | static void slow_sane_block_input(struct net_device *dev, int count, | |
164 | struct sk_buff *skb, int ring_offset); | |
165 | static void slow_sane_block_output(struct net_device *dev, int count, | |
166 | const unsigned char *buf, int start_page); | |
167 | static void word_memcpy_tocard(void *tp, const void *fp, int count); | |
168 | static void word_memcpy_fromcard(void *tp, const void *fp, int count); | |
169 | ||
909fa882 | 170 | static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev) |
1da177e4 | 171 | { |
2964db0f | 172 | switch (dev->dr_sw) { |
35076402 JP |
173 | case NUBUS_DRSW_3COM: |
174 | switch (dev->dr_hw) { | |
175 | case NUBUS_DRHW_APPLE_SONIC_NB: | |
176 | case NUBUS_DRHW_APPLE_SONIC_LC: | |
177 | case NUBUS_DRHW_SONNET: | |
178 | return MAC8390_NONE; | |
2964db0f | 179 | break; |
35076402 JP |
180 | default: |
181 | return MAC8390_APPLE; | |
2964db0f | 182 | break; |
35076402 JP |
183 | } |
184 | break; | |
2964db0f | 185 | |
35076402 JP |
186 | case NUBUS_DRSW_APPLE: |
187 | switch (dev->dr_hw) { | |
188 | case NUBUS_DRHW_ASANTE_LC: | |
189 | return MAC8390_NONE; | |
2964db0f | 190 | break; |
35076402 JP |
191 | case NUBUS_DRHW_CABLETRON: |
192 | return MAC8390_CABLETRON; | |
2964db0f | 193 | break; |
35076402 JP |
194 | default: |
195 | return MAC8390_APPLE; | |
2964db0f | 196 | break; |
35076402 JP |
197 | } |
198 | break; | |
2964db0f | 199 | |
35076402 JP |
200 | case NUBUS_DRSW_ASANTE: |
201 | return MAC8390_ASANTE; | |
202 | break; | |
203 | ||
204 | case NUBUS_DRSW_TECHWORKS: | |
205 | case NUBUS_DRSW_DAYNA2: | |
206 | case NUBUS_DRSW_DAYNA_LC: | |
207 | if (dev->dr_hw == NUBUS_DRHW_CABLETRON) | |
208 | return MAC8390_CABLETRON; | |
209 | else | |
210 | return MAC8390_APPLE; | |
211 | break; | |
212 | ||
213 | case NUBUS_DRSW_FARALLON: | |
214 | return MAC8390_FARALLON; | |
215 | break; | |
2964db0f | 216 | |
35076402 JP |
217 | case NUBUS_DRSW_KINETICS: |
218 | switch (dev->dr_hw) { | |
219 | case NUBUS_DRHW_INTERLAN: | |
220 | return MAC8390_INTERLAN; | |
2964db0f | 221 | break; |
35076402 JP |
222 | default: |
223 | return MAC8390_KINETICS; | |
224 | break; | |
225 | } | |
226 | break; | |
227 | ||
228 | case NUBUS_DRSW_DAYNA: | |
8e4d9696 JP |
229 | /* |
230 | * These correspond to Dayna Sonic cards | |
231 | * which use the macsonic driver | |
232 | */ | |
35076402 | 233 | if (dev->dr_hw == NUBUS_DRHW_SMC9194 || |
8e4d9696 | 234 | dev->dr_hw == NUBUS_DRHW_INTERLAN) |
35076402 JP |
235 | return MAC8390_NONE; |
236 | else | |
237 | return MAC8390_DAYNA; | |
238 | break; | |
2964db0f | 239 | } |
1da177e4 LT |
240 | return MAC8390_NONE; |
241 | } | |
242 | ||
909fa882 | 243 | static enum mac8390_access __init mac8390_testio(volatile unsigned long membase) |
2964db0f FT |
244 | { |
245 | unsigned long outdata = 0xA5A0B5B0; | |
246 | unsigned long indata = 0x00000000; | |
247 | /* Try writing 32 bits */ | |
5c7fffd0 | 248 | memcpy(membase, &outdata, 4); |
2964db0f FT |
249 | /* Now compare them */ |
250 | if (memcmp((char *)&outdata, (char *)membase, 4) == 0) | |
251 | return ACCESS_32; | |
252 | /* Write 16 bit output */ | |
5c7fffd0 | 253 | word_memcpy_tocard(membase, &outdata, 4); |
2964db0f | 254 | /* Now read it back */ |
5c7fffd0 | 255 | word_memcpy_fromcard(&indata, membase, 4); |
2964db0f FT |
256 | if (outdata == indata) |
257 | return ACCESS_16; | |
258 | return ACCESS_UNKNOWN; | |
259 | } | |
260 | ||
909fa882 | 261 | static int __init mac8390_memsize(unsigned long membase) |
1da177e4 LT |
262 | { |
263 | unsigned long flags; | |
264 | int i, j; | |
6aa20a22 | 265 | |
1da177e4 LT |
266 | local_irq_save(flags); |
267 | /* Check up to 32K in 4K increments */ | |
268 | for (i = 0; i < 8; i++) { | |
8e4d9696 | 269 | volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000)); |
1da177e4 LT |
270 | |
271 | /* Unwriteable - we have a fully decoded card and the | |
272 | RAM end located */ | |
273 | if (hwreg_present(m) == 0) | |
274 | break; | |
6aa20a22 | 275 | |
1da177e4 LT |
276 | /* write a distinctive byte */ |
277 | *m = 0xA5A0 | i; | |
278 | /* check that we read back what we wrote */ | |
279 | if (*m != (0xA5A0 | i)) | |
280 | break; | |
281 | ||
282 | /* check for partial decode and wrap */ | |
283 | for (j = 0; j < i; j++) { | |
8e4d9696 | 284 | volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000)); |
1da177e4 LT |
285 | if (*p != (0xA5A0 | j)) |
286 | break; | |
8e4d9696 JP |
287 | } |
288 | } | |
1da177e4 | 289 | local_irq_restore(flags); |
8e4d9696 JP |
290 | /* |
291 | * in any case, we stopped once we tried one block too many, | |
292 | * or once we reached 32K | |
293 | */ | |
294 | return i * 0x1000; | |
1da177e4 LT |
295 | } |
296 | ||
f6de7acc JP |
297 | static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev, |
298 | enum mac8390_type cardtype) | |
299 | { | |
300 | struct nubus_dir dir; | |
301 | struct nubus_dirent ent; | |
302 | int offset; | |
303 | volatile unsigned short *i; | |
304 | ||
51f53006 | 305 | printk_once(KERN_INFO pr_fmt("%s"), version); |
f6de7acc JP |
306 | |
307 | dev->irq = SLOT2IRQ(ndev->board->slot); | |
308 | /* This is getting to be a habit */ | |
309 | dev->base_addr = (ndev->board->slot_addr | | |
310 | ((ndev->board->slot & 0xf) << 20)); | |
311 | ||
312 | /* | |
313 | * Get some Nubus info - we will trust the card's idea | |
314 | * of where its memory and registers are. | |
315 | */ | |
316 | ||
317 | if (nubus_get_func_dir(ndev, &dir) == -1) { | |
318 | pr_err("%s: Unable to get Nubus functional directory for slot %X!\n", | |
319 | dev->name, ndev->board->slot); | |
320 | return false; | |
321 | } | |
322 | ||
323 | /* Get the MAC address */ | |
324 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) { | |
325 | pr_info("%s: Couldn't get MAC address!\n", dev->name); | |
326 | return false; | |
327 | } | |
328 | ||
329 | nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); | |
330 | ||
331 | if (useresources[cardtype] == 1) { | |
332 | nubus_rewinddir(&dir); | |
333 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, | |
334 | &ent) == -1) { | |
335 | pr_err("%s: Memory offset resource for slot %X not found!\n", | |
336 | dev->name, ndev->board->slot); | |
337 | return false; | |
338 | } | |
339 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
340 | dev->mem_start = dev->base_addr + offset; | |
341 | /* yes, this is how the Apple driver does it */ | |
342 | dev->base_addr = dev->mem_start + 0x10000; | |
343 | nubus_rewinddir(&dir); | |
344 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, | |
345 | &ent) == -1) { | |
346 | pr_info("%s: Memory length resource for slot %X not found, probing\n", | |
347 | dev->name, ndev->board->slot); | |
348 | offset = mac8390_memsize(dev->mem_start); | |
349 | } else { | |
350 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
351 | } | |
352 | dev->mem_end = dev->mem_start + offset; | |
353 | } else { | |
354 | switch (cardtype) { | |
355 | case MAC8390_KINETICS: | |
356 | case MAC8390_DAYNA: /* it's the same */ | |
357 | dev->base_addr = (int)(ndev->board->slot_addr + | |
358 | DAYNA_8390_BASE); | |
359 | dev->mem_start = (int)(ndev->board->slot_addr + | |
360 | DAYNA_8390_MEM); | |
361 | dev->mem_end = dev->mem_start + | |
362 | mac8390_memsize(dev->mem_start); | |
363 | break; | |
364 | case MAC8390_INTERLAN: | |
365 | dev->base_addr = (int)(ndev->board->slot_addr + | |
366 | INTERLAN_8390_BASE); | |
367 | dev->mem_start = (int)(ndev->board->slot_addr + | |
368 | INTERLAN_8390_MEM); | |
369 | dev->mem_end = dev->mem_start + | |
370 | mac8390_memsize(dev->mem_start); | |
371 | break; | |
372 | case MAC8390_CABLETRON: | |
373 | dev->base_addr = (int)(ndev->board->slot_addr + | |
374 | CABLETRON_8390_BASE); | |
375 | dev->mem_start = (int)(ndev->board->slot_addr + | |
376 | CABLETRON_8390_MEM); | |
377 | /* The base address is unreadable if 0x00 | |
378 | * has been written to the command register | |
379 | * Reset the chip by writing E8390_NODMA + | |
380 | * E8390_PAGE0 + E8390_STOP just to be | |
381 | * sure | |
382 | */ | |
383 | i = (void *)dev->base_addr; | |
384 | *i = 0x21; | |
385 | dev->mem_end = dev->mem_start + | |
386 | mac8390_memsize(dev->mem_start); | |
387 | break; | |
388 | ||
389 | default: | |
390 | pr_err("Card type %s is unsupported, sorry\n", | |
391 | ndev->board->name); | |
392 | return false; | |
393 | } | |
394 | } | |
395 | ||
396 | return true; | |
397 | } | |
398 | ||
1da177e4 LT |
399 | struct net_device * __init mac8390_probe(int unit) |
400 | { | |
401 | struct net_device *dev; | |
8e4d9696 | 402 | struct nubus_dev *ndev = NULL; |
1da177e4 | 403 | int err = -ENODEV; |
6aa20a22 | 404 | |
1da177e4 LT |
405 | static unsigned int slots; |
406 | ||
407 | enum mac8390_type cardtype; | |
408 | ||
409 | /* probably should check for Nubus instead */ | |
410 | ||
411 | if (!MACH_IS_MAC) | |
412 | return ERR_PTR(-ENODEV); | |
413 | ||
217cbfa8 | 414 | dev = ____alloc_ei_netdev(0); |
1da177e4 LT |
415 | if (!dev) |
416 | return ERR_PTR(-ENOMEM); | |
417 | ||
418 | if (unit >= 0) | |
419 | sprintf(dev->name, "eth%d", unit); | |
420 | ||
8e4d9696 JP |
421 | while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, |
422 | ndev))) { | |
1da177e4 | 423 | /* Have we seen it already? */ |
f6de7acc | 424 | if (slots & (1 << ndev->board->slot)) |
1da177e4 | 425 | continue; |
f6de7acc | 426 | slots |= 1 << ndev->board->slot; |
1da177e4 | 427 | |
8e4d9696 JP |
428 | cardtype = mac8390_ident(ndev); |
429 | if (cardtype == MAC8390_NONE) | |
1da177e4 LT |
430 | continue; |
431 | ||
f6de7acc | 432 | if (!mac8390_init(dev, ndev, cardtype)) |
1da177e4 | 433 | continue; |
1da177e4 LT |
434 | |
435 | /* Do the nasty 8390 stuff */ | |
436 | if (!mac8390_initdev(dev, ndev, cardtype)) | |
437 | break; | |
438 | } | |
439 | ||
440 | if (!ndev) | |
441 | goto out; | |
442 | err = register_netdev(dev); | |
443 | if (err) | |
444 | goto out; | |
445 | return dev; | |
446 | ||
447 | out: | |
448 | free_netdev(dev); | |
449 | return ERR_PTR(err); | |
450 | } | |
451 | ||
452 | #ifdef MODULE | |
453 | MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); | |
454 | MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); | |
455 | MODULE_LICENSE("GPL"); | |
456 | ||
457 | /* overkill, of course */ | |
458 | static struct net_device *dev_mac8390[15]; | |
459 | int init_module(void) | |
460 | { | |
461 | int i; | |
462 | for (i = 0; i < 15; i++) { | |
463 | struct net_device *dev = mac8390_probe(-1); | |
464 | if (IS_ERR(dev)) | |
465 | break; | |
466 | dev_mac890[i] = dev; | |
467 | } | |
468 | if (!i) { | |
18c00191 | 469 | pr_notice("No useable cards found, driver NOT installed.\n"); |
1da177e4 LT |
470 | return -ENODEV; |
471 | } | |
472 | return 0; | |
473 | } | |
474 | ||
475 | void cleanup_module(void) | |
476 | { | |
477 | int i; | |
478 | for (i = 0; i < 15; i++) { | |
479 | struct net_device *dev = dev_mac890[i]; | |
480 | if (dev) { | |
481 | unregister_netdev(dev); | |
482 | free_netdev(dev); | |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | #endif /* MODULE */ | |
488 | ||
ca17584b SH |
489 | static const struct net_device_ops mac8390_netdev_ops = { |
490 | .ndo_open = mac8390_open, | |
491 | .ndo_stop = mac8390_close, | |
217cbfa8 FT |
492 | .ndo_start_xmit = __ei_start_xmit, |
493 | .ndo_tx_timeout = __ei_tx_timeout, | |
494 | .ndo_get_stats = __ei_get_stats, | |
495 | .ndo_set_multicast_list = __ei_set_multicast_list, | |
ca17584b | 496 | .ndo_validate_addr = eth_validate_addr, |
fe96aaa1 | 497 | .ndo_set_mac_address = eth_mac_addr, |
ca17584b SH |
498 | .ndo_change_mtu = eth_change_mtu, |
499 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
4e0168fa | 500 | .ndo_poll_controller = __ei_poll, |
ca17584b SH |
501 | #endif |
502 | }; | |
503 | ||
8e4d9696 JP |
504 | static int __init mac8390_initdev(struct net_device *dev, |
505 | struct nubus_dev *ndev, | |
506 | enum mac8390_type type) | |
1da177e4 | 507 | { |
8e4d9696 | 508 | static u32 fwrd4_offsets[16] = { |
1da177e4 LT |
509 | 0, 4, 8, 12, |
510 | 16, 20, 24, 28, | |
511 | 32, 36, 40, 44, | |
512 | 48, 52, 56, 60 | |
513 | }; | |
8e4d9696 | 514 | static u32 back4_offsets[16] = { |
1da177e4 LT |
515 | 60, 56, 52, 48, |
516 | 44, 40, 36, 32, | |
517 | 28, 24, 20, 16, | |
518 | 12, 8, 4, 0 | |
519 | }; | |
8e4d9696 | 520 | static u32 fwrd2_offsets[16] = { |
1da177e4 LT |
521 | 0, 2, 4, 6, |
522 | 8, 10, 12, 14, | |
523 | 16, 18, 20, 22, | |
524 | 24, 26, 28, 30 | |
525 | }; | |
526 | ||
2964db0f | 527 | int access_bitmode = 0; |
6aa20a22 | 528 | |
1da177e4 | 529 | /* Now fill in our stuff */ |
ca17584b | 530 | dev->netdev_ops = &mac8390_netdev_ops; |
1da177e4 LT |
531 | |
532 | /* GAR, ei_status is actually a macro even though it looks global */ | |
533 | ei_status.name = cardname[type]; | |
534 | ei_status.word16 = word16[type]; | |
535 | ||
536 | /* Cabletron's TX/RX buffers are backwards */ | |
537 | if (type == MAC8390_CABLETRON) { | |
8e4d9696 JP |
538 | ei_status.tx_start_page = CABLETRON_TX_START_PG; |
539 | ei_status.rx_start_page = CABLETRON_RX_START_PG; | |
540 | ei_status.stop_page = CABLETRON_RX_STOP_PG; | |
541 | ei_status.rmem_start = dev->mem_start; | |
542 | ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; | |
1da177e4 | 543 | } else { |
8e4d9696 JP |
544 | ei_status.tx_start_page = WD_START_PG; |
545 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
546 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
547 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | |
548 | ei_status.rmem_end = dev->mem_end; | |
1da177e4 | 549 | } |
6aa20a22 | 550 | |
1da177e4 | 551 | /* Fill in model-specific information and functions */ |
35076402 | 552 | switch (type) { |
1da177e4 LT |
553 | case MAC8390_FARALLON: |
554 | case MAC8390_APPLE: | |
35076402 JP |
555 | switch (mac8390_testio(dev->mem_start)) { |
556 | case ACCESS_UNKNOWN: | |
18c00191 | 557 | pr_info("Don't know how to access card memory!\n"); |
35076402 JP |
558 | return -ENODEV; |
559 | break; | |
2964db0f | 560 | |
35076402 JP |
561 | case ACCESS_16: |
562 | /* 16 bit card, register map is reversed */ | |
563 | ei_status.reset_8390 = &mac8390_no_reset; | |
564 | ei_status.block_input = &slow_sane_block_input; | |
565 | ei_status.block_output = &slow_sane_block_output; | |
566 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
567 | ei_status.reg_offset = back4_offsets; | |
568 | break; | |
2964db0f | 569 | |
35076402 JP |
570 | case ACCESS_32: |
571 | /* 32 bit card, register map is reversed */ | |
572 | ei_status.reset_8390 = &mac8390_no_reset; | |
573 | ei_status.block_input = &sane_block_input; | |
574 | ei_status.block_output = &sane_block_output; | |
575 | ei_status.get_8390_hdr = &sane_get_8390_hdr; | |
576 | ei_status.reg_offset = back4_offsets; | |
577 | access_bitmode = 1; | |
578 | break; | |
2964db0f FT |
579 | } |
580 | break; | |
581 | ||
1da177e4 | 582 | case MAC8390_ASANTE: |
2964db0f FT |
583 | /* Some Asante cards pass the 32 bit test |
584 | * but overwrite system memory when run at 32 bit. | |
585 | * so we run them all at 16 bit. | |
586 | */ | |
1da177e4 | 587 | ei_status.reset_8390 = &mac8390_no_reset; |
2964db0f FT |
588 | ei_status.block_input = &slow_sane_block_input; |
589 | ei_status.block_output = &slow_sane_block_output; | |
590 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
1da177e4 | 591 | ei_status.reg_offset = back4_offsets; |
1da177e4 | 592 | break; |
2964db0f | 593 | |
1da177e4 LT |
594 | case MAC8390_CABLETRON: |
595 | /* 16 bit card, register map is short forward */ | |
596 | ei_status.reset_8390 = &mac8390_no_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 = fwrd2_offsets; | |
1da177e4 | 601 | break; |
2964db0f | 602 | |
1da177e4 LT |
603 | case MAC8390_DAYNA: |
604 | case MAC8390_KINETICS: | |
2964db0f | 605 | /* 16 bit memory, register map is forward */ |
1da177e4 LT |
606 | /* dayna and similar */ |
607 | ei_status.reset_8390 = &mac8390_no_reset; | |
608 | ei_status.block_input = &dayna_block_input; | |
609 | ei_status.block_output = &dayna_block_output; | |
610 | ei_status.get_8390_hdr = &dayna_get_8390_hdr; | |
611 | ei_status.reg_offset = fwrd4_offsets; | |
1da177e4 | 612 | break; |
2964db0f FT |
613 | |
614 | case MAC8390_INTERLAN: | |
615 | /* 16 bit memory, register map is forward */ | |
616 | ei_status.reset_8390 = &interlan_reset; | |
617 | ei_status.block_input = &slow_sane_block_input; | |
618 | ei_status.block_output = &slow_sane_block_output; | |
619 | ei_status.get_8390_hdr = &slow_sane_get_8390_hdr; | |
8e4d9696 JP |
620 | ei_status.reg_offset = fwrd4_offsets; |
621 | break; | |
2964db0f | 622 | |
1da177e4 | 623 | default: |
18c00191 JP |
624 | pr_err("Card type %s is unsupported, sorry\n", |
625 | ndev->board->name); | |
1da177e4 LT |
626 | return -ENODEV; |
627 | } | |
6aa20a22 | 628 | |
8c6270f9 | 629 | __NS8390_init(dev, 0); |
1da177e4 LT |
630 | |
631 | /* Good, done, now spit out some messages */ | |
18c00191 JP |
632 | pr_info("%s: %s in slot %X (type %s)\n", |
633 | dev->name, ndev->board->name, ndev->board->slot, | |
634 | cardname[type]); | |
635 | pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", | |
636 | dev->dev_addr, dev->irq, | |
637 | (unsigned int)(dev->mem_end - dev->mem_start) >> 10, | |
638 | dev->mem_start, access_bitmode ? 32 : 16); | |
1da177e4 LT |
639 | return 0; |
640 | } | |
641 | ||
642 | static int mac8390_open(struct net_device *dev) | |
643 | { | |
8c6270f9 AV |
644 | __ei_open(dev); |
645 | if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) { | |
18c00191 | 646 | pr_info("%s: unable to get IRQ %d.\n", dev->name, dev->irq); |
1da177e4 | 647 | return -EAGAIN; |
6aa20a22 | 648 | } |
1da177e4 LT |
649 | return 0; |
650 | } | |
651 | ||
652 | static int mac8390_close(struct net_device *dev) | |
653 | { | |
654 | free_irq(dev->irq, dev); | |
8c6270f9 | 655 | __ei_close(dev); |
1da177e4 LT |
656 | return 0; |
657 | } | |
658 | ||
659 | static void mac8390_no_reset(struct net_device *dev) | |
660 | { | |
661 | ei_status.txing = 0; | |
662 | if (ei_debug > 1) | |
18c00191 | 663 | pr_info("reset not supported\n"); |
1da177e4 LT |
664 | } |
665 | ||
2964db0f FT |
666 | static void interlan_reset(struct net_device *dev) |
667 | { | |
8e4d9696 | 668 | unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq)); |
2964db0f | 669 | if (ei_debug > 1) |
18c00191 | 670 | pr_info("Need to reset the NS8390 t=%lu...", jiffies); |
2964db0f FT |
671 | ei_status.txing = 0; |
672 | target[0xC0000] = 0; | |
673 | if (ei_debug > 1) | |
18c00191 | 674 | pr_cont("reset complete\n"); |
2964db0f FT |
675 | } |
676 | ||
1da177e4 LT |
677 | /* dayna_memcpy_fromio/dayna_memcpy_toio */ |
678 | /* directly from daynaport.c by Alan Cox */ | |
8e4d9696 JP |
679 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, |
680 | int count) | |
1da177e4 | 681 | { |
09cc07a5 | 682 | volatile unsigned char *ptr; |
8e4d9696 JP |
683 | unsigned char *target = to; |
684 | from <<= 1; /* word, skip overhead */ | |
685 | ptr = (unsigned char *)(dev->mem_start+from); | |
1da177e4 | 686 | /* Leading byte? */ |
8e4d9696 | 687 | if (from & 2) { |
09cc07a5 AV |
688 | *target++ = ptr[-1]; |
689 | ptr += 2; | |
1da177e4 LT |
690 | count--; |
691 | } | |
8e4d9696 | 692 | while (count >= 2) { |
09cc07a5 AV |
693 | *(unsigned short *)target = *(unsigned short volatile *)ptr; |
694 | ptr += 4; /* skip cruft */ | |
695 | target += 2; | |
8e4d9696 | 696 | count -= 2; |
1da177e4 LT |
697 | } |
698 | /* Trailing byte? */ | |
8e4d9696 | 699 | if (count) |
09cc07a5 | 700 | *target = *ptr; |
1da177e4 LT |
701 | } |
702 | ||
8e4d9696 JP |
703 | static void dayna_memcpy_tocard(struct net_device *dev, int to, |
704 | const void *from, int count) | |
1da177e4 LT |
705 | { |
706 | volatile unsigned short *ptr; | |
8e4d9696 JP |
707 | const unsigned char *src = from; |
708 | to <<= 1; /* word, skip overhead */ | |
709 | ptr = (unsigned short *)(dev->mem_start+to); | |
1da177e4 | 710 | /* Leading byte? */ |
8e4d9696 | 711 | if (to & 2) { /* avoid a byte write (stomps on other data) */ |
09cc07a5 | 712 | ptr[-1] = (ptr[-1]&0xFF00)|*src++; |
1da177e4 LT |
713 | ptr++; |
714 | count--; | |
715 | } | |
8e4d9696 JP |
716 | while (count >= 2) { |
717 | *ptr++ = *(unsigned short *)src; /* Copy and */ | |
1da177e4 | 718 | ptr++; /* skip cruft */ |
09cc07a5 | 719 | src += 2; |
8e4d9696 | 720 | count -= 2; |
1da177e4 LT |
721 | } |
722 | /* Trailing byte? */ | |
8e4d9696 | 723 | if (count) { |
1da177e4 | 724 | /* card doesn't like byte writes */ |
8e4d9696 | 725 | *ptr = (*ptr & 0x00FF) | (*src << 8); |
1da177e4 LT |
726 | } |
727 | } | |
728 | ||
729 | /* sane block input/output */ | |
730 | static void sane_get_8390_hdr(struct net_device *dev, | |
731 | struct e8390_pkt_hdr *hdr, int ring_page) | |
732 | { | |
733 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
734 | memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4); | |
735 | /* Fix endianness */ | |
736 | hdr->count = swab16(hdr->count); | |
737 | } | |
738 | ||
739 | static void sane_block_input(struct net_device *dev, int count, | |
740 | struct sk_buff *skb, int ring_offset) | |
741 | { | |
742 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
743 | unsigned long xfer_start = xfer_base + dev->mem_start; | |
744 | ||
745 | if (xfer_start + count > ei_status.rmem_end) { | |
746 | /* We must wrap the input move. */ | |
747 | int semi_count = ei_status.rmem_end - xfer_start; | |
8e4d9696 JP |
748 | memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, |
749 | semi_count); | |
1da177e4 | 750 | count -= semi_count; |
8e4d9696 JP |
751 | memcpy_toio(skb->data + semi_count, |
752 | (char *)ei_status.rmem_start, count); | |
1da177e4 | 753 | } else { |
8e4d9696 JP |
754 | memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, |
755 | count); | |
1da177e4 LT |
756 | } |
757 | } | |
758 | ||
759 | static void sane_block_output(struct net_device *dev, int count, | |
760 | const unsigned char *buf, int start_page) | |
761 | { | |
762 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 763 | |
1da177e4 LT |
764 | memcpy_toio((char *)dev->mem_start + shmem, buf, count); |
765 | } | |
766 | ||
767 | /* dayna block input/output */ | |
8e4d9696 JP |
768 | static void dayna_get_8390_hdr(struct net_device *dev, |
769 | struct e8390_pkt_hdr *hdr, int ring_page) | |
1da177e4 LT |
770 | { |
771 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
772 | ||
5c7fffd0 | 773 | dayna_memcpy_fromcard(dev, hdr, hdr_start, 4); |
1da177e4 | 774 | /* Fix endianness */ |
8e4d9696 | 775 | hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8); |
1da177e4 LT |
776 | } |
777 | ||
8e4d9696 JP |
778 | static void dayna_block_input(struct net_device *dev, int count, |
779 | struct sk_buff *skb, int ring_offset) | |
1da177e4 LT |
780 | { |
781 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
782 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
783 | ||
784 | /* Note the offset math is done in card memory space which is word | |
785 | per long onto our space. */ | |
786 | ||
8e4d9696 | 787 | if (xfer_start + count > ei_status.rmem_end) { |
1da177e4 LT |
788 | /* We must wrap the input move. */ |
789 | int semi_count = ei_status.rmem_end - xfer_start; | |
790 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); | |
791 | count -= semi_count; | |
792 | dayna_memcpy_fromcard(dev, skb->data + semi_count, | |
793 | ei_status.rmem_start - dev->mem_start, | |
794 | count); | |
8e4d9696 | 795 | } else { |
1da177e4 LT |
796 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); |
797 | } | |
798 | } | |
799 | ||
8e4d9696 JP |
800 | static void dayna_block_output(struct net_device *dev, int count, |
801 | const unsigned char *buf, | |
802 | int start_page) | |
1da177e4 LT |
803 | { |
804 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 805 | |
1da177e4 LT |
806 | dayna_memcpy_tocard(dev, shmem, buf, count); |
807 | } | |
808 | ||
809 | /* Cabletron block I/O */ | |
8e4d9696 JP |
810 | static void slow_sane_get_8390_hdr(struct net_device *dev, |
811 | struct e8390_pkt_hdr *hdr, | |
812 | int ring_page) | |
1da177e4 LT |
813 | { |
814 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
5c7fffd0 | 815 | word_memcpy_fromcard(hdr, (char *)dev->mem_start + hdr_start, 4); |
1da177e4 LT |
816 | /* Register endianism - fix here rather than 8390.c */ |
817 | hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); | |
818 | } | |
819 | ||
8e4d9696 JP |
820 | static void slow_sane_block_input(struct net_device *dev, int count, |
821 | struct sk_buff *skb, int ring_offset) | |
1da177e4 LT |
822 | { |
823 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
824 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
825 | ||
8e4d9696 | 826 | if (xfer_start + count > ei_status.rmem_end) { |
1da177e4 LT |
827 | /* We must wrap the input move. */ |
828 | int semi_count = ei_status.rmem_end - xfer_start; | |
5c7fffd0 JP |
829 | word_memcpy_fromcard(skb->data, |
830 | (char *)dev->mem_start + xfer_base, | |
831 | semi_count); | |
1da177e4 LT |
832 | count -= semi_count; |
833 | word_memcpy_fromcard(skb->data + semi_count, | |
834 | (char *)ei_status.rmem_start, count); | |
8e4d9696 | 835 | } else { |
5c7fffd0 JP |
836 | word_memcpy_fromcard(skb->data, |
837 | (char *)dev->mem_start + xfer_base, count); | |
1da177e4 LT |
838 | } |
839 | } | |
840 | ||
8e4d9696 JP |
841 | static void slow_sane_block_output(struct net_device *dev, int count, |
842 | const unsigned char *buf, int start_page) | |
1da177e4 LT |
843 | { |
844 | long shmem = (start_page - WD_START_PG)<<8; | |
845 | ||
846 | word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count); | |
847 | } | |
848 | ||
849 | static void word_memcpy_tocard(void *tp, const void *fp, int count) | |
850 | { | |
851 | volatile unsigned short *to = tp; | |
852 | const unsigned short *from = fp; | |
853 | ||
854 | count++; | |
8e4d9696 | 855 | count /= 2; |
1da177e4 | 856 | |
8e4d9696 JP |
857 | while (count--) |
858 | *to++ = *from++; | |
1da177e4 LT |
859 | } |
860 | ||
861 | static void word_memcpy_fromcard(void *tp, const void *fp, int count) | |
862 | { | |
863 | unsigned short *to = tp; | |
864 | const volatile unsigned short *from = fp; | |
865 | ||
866 | count++; | |
8e4d9696 | 867 | count /= 2; |
1da177e4 | 868 | |
8e4d9696 JP |
869 | while (count--) |
870 | *to++ = *from++; | |
1da177e4 LT |
871 | } |
872 | ||
6aa20a22 | 873 |