]>
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 | 39 | |
1da177e4 LT |
40 | #include <asm/dma.h> |
41 | #include <asm/hwtest.h> | |
42 | #include <asm/macints.h> | |
43 | ||
8c6270f9 | 44 | static char version[] = |
18c00191 | 45 | "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; |
8c6270f9 AV |
46 | |
47 | #define EI_SHIFT(x) (ei_local->reg_offset[x]) | |
8e4d9696 JP |
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) | |
8c6270f9 AV |
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 */ | |
8e4d9696 JP |
58 | #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG |
59 | /* First page of TX buffer */ | |
1da177e4 | 60 | |
8e4d9696 JP |
61 | /* |
62 | * Unfortunately it seems we have to hardcode these for the moment | |
63 | * Shouldn't the card know about this? | |
64 | * Does anyone know where to read it off the card? | |
65 | * Do we trust the data provided by the card? | |
66 | */ | |
1da177e4 LT |
67 | |
68 | #define DAYNA_8390_BASE 0x80000 | |
69 | #define DAYNA_8390_MEM 0x00000 | |
70 | ||
6aa20a22 | 71 | #define CABLETRON_8390_BASE 0x90000 |
1da177e4 LT |
72 | #define CABLETRON_8390_MEM 0x00000 |
73 | ||
2964db0f FT |
74 | #define INTERLAN_8390_BASE 0xE0000 |
75 | #define INTERLAN_8390_MEM 0xD0000 | |
76 | ||
1da177e4 LT |
77 | enum mac8390_type { |
78 | MAC8390_NONE = -1, | |
79 | MAC8390_APPLE, | |
80 | MAC8390_ASANTE, | |
2964db0f | 81 | MAC8390_FARALLON, |
1da177e4 LT |
82 | MAC8390_CABLETRON, |
83 | MAC8390_DAYNA, | |
84 | MAC8390_INTERLAN, | |
85 | MAC8390_KINETICS, | |
1da177e4 LT |
86 | }; |
87 | ||
8e4d9696 | 88 | static const char *cardname[] = { |
1da177e4 LT |
89 | "apple", |
90 | "asante", | |
91 | "farallon", | |
92 | "cabletron", | |
93 | "dayna", | |
94 | "interlan", | |
95 | "kinetics", | |
1da177e4 LT |
96 | }; |
97 | ||
8e4d9696 | 98 | static const int word16[] = { |
1da177e4 LT |
99 | 1, /* apple */ |
100 | 1, /* asante */ | |
101 | 1, /* farallon */ | |
102 | 1, /* cabletron */ | |
103 | 0, /* dayna */ | |
104 | 1, /* interlan */ | |
105 | 0, /* kinetics */ | |
1da177e4 LT |
106 | }; |
107 | ||
108 | /* on which cards do we use NuBus resources? */ | |
8e4d9696 | 109 | static const int useresources[] = { |
1da177e4 LT |
110 | 1, /* apple */ |
111 | 1, /* asante */ | |
112 | 1, /* farallon */ | |
113 | 0, /* cabletron */ | |
114 | 0, /* dayna */ | |
115 | 0, /* interlan */ | |
116 | 0, /* kinetics */ | |
2964db0f FT |
117 | }; |
118 | ||
119 | enum mac8390_access { | |
120 | ACCESS_UNKNOWN = 0, | |
121 | ACCESS_32, | |
122 | ACCESS_16, | |
1da177e4 LT |
123 | }; |
124 | ||
8e4d9696 | 125 | extern int mac8390_memtest(struct net_device *dev); |
494a973e | 126 | static int mac8390_initdev(struct net_device *dev, struct nubus_board *board, |
1da177e4 LT |
127 | enum mac8390_type type); |
128 | ||
8e4d9696 JP |
129 | static int mac8390_open(struct net_device *dev); |
130 | static int mac8390_close(struct net_device *dev); | |
1da177e4 | 131 | static void mac8390_no_reset(struct net_device *dev); |
2964db0f | 132 | static void interlan_reset(struct net_device *dev); |
1da177e4 | 133 | |
2964db0f | 134 | /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/ |
1da177e4 LT |
135 | static void sane_get_8390_hdr(struct net_device *dev, |
136 | struct e8390_pkt_hdr *hdr, int ring_page); | |
8e4d9696 JP |
137 | static void sane_block_input(struct net_device *dev, int count, |
138 | struct sk_buff *skb, int ring_offset); | |
139 | static void sane_block_output(struct net_device *dev, int count, | |
140 | const unsigned char *buf, const int start_page); | |
1da177e4 LT |
141 | |
142 | /* dayna_memcpy to and from card */ | |
143 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, | |
144 | int from, int count); | |
145 | static void dayna_memcpy_tocard(struct net_device *dev, int to, | |
146 | const void *from, int count); | |
147 | ||
148 | /* Dayna - Dayna/Kinetics use this */ | |
149 | static void dayna_get_8390_hdr(struct net_device *dev, | |
150 | struct e8390_pkt_hdr *hdr, int ring_page); | |
151 | static void dayna_block_input(struct net_device *dev, int count, | |
152 | struct sk_buff *skb, int ring_offset); | |
153 | static void dayna_block_output(struct net_device *dev, int count, | |
154 | const unsigned char *buf, int start_page); | |
155 | ||
1da177e4 LT |
156 | /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ |
157 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
158 | struct e8390_pkt_hdr *hdr, int ring_page); | |
159 | static void slow_sane_block_input(struct net_device *dev, int count, | |
160 | struct sk_buff *skb, int ring_offset); | |
161 | static void slow_sane_block_output(struct net_device *dev, int count, | |
162 | const unsigned char *buf, int start_page); | |
7e364e96 GU |
163 | static void word_memcpy_tocard(unsigned long tp, const void *fp, int count); |
164 | static void word_memcpy_fromcard(void *tp, unsigned long fp, int count); | |
1da177e4 | 165 | |
494a973e | 166 | static enum mac8390_type mac8390_ident(struct nubus_rsrc *fres) |
1da177e4 | 167 | { |
189e19e8 | 168 | switch (fres->dr_sw) { |
35076402 | 169 | case NUBUS_DRSW_3COM: |
189e19e8 | 170 | switch (fres->dr_hw) { |
35076402 JP |
171 | case NUBUS_DRHW_APPLE_SONIC_NB: |
172 | case NUBUS_DRHW_APPLE_SONIC_LC: | |
173 | case NUBUS_DRHW_SONNET: | |
174 | return MAC8390_NONE; | |
35076402 JP |
175 | default: |
176 | return MAC8390_APPLE; | |
35076402 JP |
177 | } |
178 | break; | |
2964db0f | 179 | |
35076402 | 180 | case NUBUS_DRSW_APPLE: |
189e19e8 | 181 | switch (fres->dr_hw) { |
35076402 JP |
182 | case NUBUS_DRHW_ASANTE_LC: |
183 | return MAC8390_NONE; | |
35076402 JP |
184 | case NUBUS_DRHW_CABLETRON: |
185 | return MAC8390_CABLETRON; | |
35076402 JP |
186 | default: |
187 | return MAC8390_APPLE; | |
35076402 JP |
188 | } |
189 | break; | |
2964db0f | 190 | |
35076402 JP |
191 | case NUBUS_DRSW_ASANTE: |
192 | return MAC8390_ASANTE; | |
193 | break; | |
194 | ||
195 | case NUBUS_DRSW_TECHWORKS: | |
196 | case NUBUS_DRSW_DAYNA2: | |
197 | case NUBUS_DRSW_DAYNA_LC: | |
189e19e8 | 198 | if (fres->dr_hw == NUBUS_DRHW_CABLETRON) |
35076402 JP |
199 | return MAC8390_CABLETRON; |
200 | else | |
201 | return MAC8390_APPLE; | |
202 | break; | |
203 | ||
204 | case NUBUS_DRSW_FARALLON: | |
205 | return MAC8390_FARALLON; | |
206 | break; | |
2964db0f | 207 | |
35076402 | 208 | case NUBUS_DRSW_KINETICS: |
189e19e8 | 209 | switch (fres->dr_hw) { |
35076402 JP |
210 | case NUBUS_DRHW_INTERLAN: |
211 | return MAC8390_INTERLAN; | |
35076402 JP |
212 | default: |
213 | return MAC8390_KINETICS; | |
35076402 JP |
214 | } |
215 | break; | |
216 | ||
217 | case NUBUS_DRSW_DAYNA: | |
8e4d9696 JP |
218 | /* |
219 | * These correspond to Dayna Sonic cards | |
220 | * which use the macsonic driver | |
221 | */ | |
189e19e8 FT |
222 | if (fres->dr_hw == NUBUS_DRHW_SMC9194 || |
223 | fres->dr_hw == NUBUS_DRHW_INTERLAN) | |
35076402 JP |
224 | return MAC8390_NONE; |
225 | else | |
226 | return MAC8390_DAYNA; | |
227 | break; | |
2964db0f | 228 | } |
1da177e4 LT |
229 | return MAC8390_NONE; |
230 | } | |
231 | ||
494a973e | 232 | static enum mac8390_access mac8390_testio(unsigned long membase) |
2964db0f | 233 | { |
bb9e5c5b FT |
234 | u32 outdata = 0xA5A0B5B0; |
235 | u32 indata = 0; | |
236 | ||
2964db0f | 237 | /* Try writing 32 bits */ |
bb9e5c5b FT |
238 | nubus_writel(outdata, membase); |
239 | /* Now read it back */ | |
240 | indata = nubus_readl(membase); | |
241 | if (outdata == indata) | |
2964db0f | 242 | return ACCESS_32; |
bb9e5c5b FT |
243 | |
244 | outdata = 0xC5C0D5D0; | |
245 | indata = 0; | |
246 | ||
2964db0f | 247 | /* Write 16 bit output */ |
5c7fffd0 | 248 | word_memcpy_tocard(membase, &outdata, 4); |
2964db0f | 249 | /* Now read it back */ |
5c7fffd0 | 250 | word_memcpy_fromcard(&indata, membase, 4); |
2964db0f FT |
251 | if (outdata == indata) |
252 | return ACCESS_16; | |
bb9e5c5b | 253 | |
2964db0f FT |
254 | return ACCESS_UNKNOWN; |
255 | } | |
256 | ||
494a973e | 257 | static int mac8390_memsize(unsigned long membase) |
1da177e4 LT |
258 | { |
259 | unsigned long flags; | |
260 | int i, j; | |
6aa20a22 | 261 | |
1da177e4 LT |
262 | local_irq_save(flags); |
263 | /* Check up to 32K in 4K increments */ | |
264 | for (i = 0; i < 8; i++) { | |
8e4d9696 | 265 | volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000)); |
1da177e4 LT |
266 | |
267 | /* Unwriteable - we have a fully decoded card and the | |
268 | RAM end located */ | |
269 | if (hwreg_present(m) == 0) | |
270 | break; | |
6aa20a22 | 271 | |
1da177e4 LT |
272 | /* write a distinctive byte */ |
273 | *m = 0xA5A0 | i; | |
274 | /* check that we read back what we wrote */ | |
275 | if (*m != (0xA5A0 | i)) | |
276 | break; | |
277 | ||
278 | /* check for partial decode and wrap */ | |
279 | for (j = 0; j < i; j++) { | |
8e4d9696 | 280 | volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000)); |
1da177e4 LT |
281 | if (*p != (0xA5A0 | j)) |
282 | break; | |
8e4d9696 JP |
283 | } |
284 | } | |
1da177e4 | 285 | local_irq_restore(flags); |
8e4d9696 JP |
286 | /* |
287 | * in any case, we stopped once we tried one block too many, | |
288 | * or once we reached 32K | |
289 | */ | |
290 | return i * 0x1000; | |
1da177e4 LT |
291 | } |
292 | ||
494a973e FT |
293 | static bool mac8390_rsrc_init(struct net_device *dev, |
294 | struct nubus_rsrc *fres, | |
295 | enum mac8390_type cardtype) | |
f6de7acc | 296 | { |
494a973e | 297 | struct nubus_board *board = fres->board; |
f6de7acc JP |
298 | struct nubus_dir dir; |
299 | struct nubus_dirent ent; | |
300 | int offset; | |
301 | volatile unsigned short *i; | |
302 | ||
494a973e | 303 | dev->irq = SLOT2IRQ(board->slot); |
f6de7acc | 304 | /* This is getting to be a habit */ |
494a973e | 305 | dev->base_addr = board->slot_addr | ((board->slot & 0xf) << 20); |
f6de7acc JP |
306 | |
307 | /* | |
308 | * Get some Nubus info - we will trust the card's idea | |
309 | * of where its memory and registers are. | |
310 | */ | |
311 | ||
494a973e | 312 | if (nubus_get_func_dir(fres, &dir) == -1) { |
4a1b27c9 FT |
313 | dev_err(&board->dev, |
314 | "Unable to get Nubus functional directory\n"); | |
f6de7acc JP |
315 | return false; |
316 | } | |
317 | ||
318 | /* Get the MAC address */ | |
319 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) { | |
4a1b27c9 | 320 | dev_info(&board->dev, "MAC address resource not found\n"); |
f6de7acc JP |
321 | return false; |
322 | } | |
323 | ||
324 | nubus_get_rsrc_mem(dev->dev_addr, &ent, 6); | |
325 | ||
326 | if (useresources[cardtype] == 1) { | |
327 | nubus_rewinddir(&dir); | |
328 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, | |
329 | &ent) == -1) { | |
4a1b27c9 FT |
330 | dev_err(&board->dev, |
331 | "Memory offset resource not found\n"); | |
f6de7acc JP |
332 | return false; |
333 | } | |
334 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
335 | dev->mem_start = dev->base_addr + offset; | |
336 | /* yes, this is how the Apple driver does it */ | |
337 | dev->base_addr = dev->mem_start + 0x10000; | |
338 | nubus_rewinddir(&dir); | |
339 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, | |
340 | &ent) == -1) { | |
4a1b27c9 FT |
341 | dev_info(&board->dev, |
342 | "Memory length resource not found, probing\n"); | |
f6de7acc JP |
343 | offset = mac8390_memsize(dev->mem_start); |
344 | } else { | |
345 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
346 | } | |
347 | dev->mem_end = dev->mem_start + offset; | |
348 | } else { | |
349 | switch (cardtype) { | |
350 | case MAC8390_KINETICS: | |
351 | case MAC8390_DAYNA: /* it's the same */ | |
494a973e | 352 | dev->base_addr = (int)(board->slot_addr + |
f6de7acc | 353 | DAYNA_8390_BASE); |
494a973e | 354 | dev->mem_start = (int)(board->slot_addr + |
f6de7acc JP |
355 | DAYNA_8390_MEM); |
356 | dev->mem_end = dev->mem_start + | |
357 | mac8390_memsize(dev->mem_start); | |
358 | break; | |
359 | case MAC8390_INTERLAN: | |
494a973e | 360 | dev->base_addr = (int)(board->slot_addr + |
f6de7acc | 361 | INTERLAN_8390_BASE); |
494a973e | 362 | dev->mem_start = (int)(board->slot_addr + |
f6de7acc JP |
363 | INTERLAN_8390_MEM); |
364 | dev->mem_end = dev->mem_start + | |
365 | mac8390_memsize(dev->mem_start); | |
366 | break; | |
367 | case MAC8390_CABLETRON: | |
494a973e | 368 | dev->base_addr = (int)(board->slot_addr + |
f6de7acc | 369 | CABLETRON_8390_BASE); |
494a973e | 370 | dev->mem_start = (int)(board->slot_addr + |
f6de7acc JP |
371 | CABLETRON_8390_MEM); |
372 | /* The base address is unreadable if 0x00 | |
373 | * has been written to the command register | |
374 | * Reset the chip by writing E8390_NODMA + | |
375 | * E8390_PAGE0 + E8390_STOP just to be | |
376 | * sure | |
377 | */ | |
378 | i = (void *)dev->base_addr; | |
379 | *i = 0x21; | |
380 | dev->mem_end = dev->mem_start + | |
381 | mac8390_memsize(dev->mem_start); | |
382 | break; | |
383 | ||
384 | default: | |
4a1b27c9 FT |
385 | dev_err(&board->dev, |
386 | "No known base address for card type\n"); | |
f6de7acc JP |
387 | return false; |
388 | } | |
389 | } | |
390 | ||
391 | return true; | |
392 | } | |
393 | ||
494a973e | 394 | static int mac8390_device_probe(struct nubus_board *board) |
1da177e4 LT |
395 | { |
396 | struct net_device *dev; | |
1da177e4 | 397 | int err = -ENODEV; |
494a973e FT |
398 | struct nubus_rsrc *fres; |
399 | enum mac8390_type cardtype = MAC8390_NONE; | |
1da177e4 | 400 | |
217cbfa8 | 401 | dev = ____alloc_ei_netdev(0); |
1da177e4 | 402 | if (!dev) |
494a973e | 403 | return -ENOMEM; |
1da177e4 | 404 | |
494a973e | 405 | SET_NETDEV_DEV(dev, &board->dev); |
1da177e4 | 406 | |
494a973e FT |
407 | for_each_board_func_rsrc(board, fres) { |
408 | if (fres->category != NUBUS_CAT_NETWORK || | |
409 | fres->type != NUBUS_TYPE_ETHERNET) | |
41b84816 FT |
410 | continue; |
411 | ||
494a973e | 412 | cardtype = mac8390_ident(fres); |
8e4d9696 | 413 | if (cardtype == MAC8390_NONE) |
1da177e4 LT |
414 | continue; |
415 | ||
494a973e | 416 | if (mac8390_rsrc_init(dev, fres, cardtype)) |
1da177e4 LT |
417 | break; |
418 | } | |
494a973e FT |
419 | if (!fres) |
420 | goto out; | |
1da177e4 | 421 | |
494a973e FT |
422 | err = mac8390_initdev(dev, board, cardtype); |
423 | if (err) | |
1da177e4 | 424 | goto out; |
c45f812f | 425 | |
1da177e4 LT |
426 | err = register_netdev(dev); |
427 | if (err) | |
428 | goto out; | |
494a973e FT |
429 | |
430 | nubus_set_drvdata(board, dev); | |
431 | return 0; | |
1da177e4 LT |
432 | |
433 | out: | |
434 | free_netdev(dev); | |
494a973e FT |
435 | return err; |
436 | } | |
437 | ||
438 | static int mac8390_device_remove(struct nubus_board *board) | |
439 | { | |
440 | struct net_device *dev = nubus_get_drvdata(board); | |
441 | ||
442 | unregister_netdev(dev); | |
443 | free_netdev(dev); | |
444 | return 0; | |
1da177e4 LT |
445 | } |
446 | ||
494a973e FT |
447 | static struct nubus_driver mac8390_driver = { |
448 | .probe = mac8390_device_probe, | |
449 | .remove = mac8390_device_remove, | |
450 | .driver = { | |
451 | .name = KBUILD_MODNAME, | |
452 | .owner = THIS_MODULE, | |
453 | } | |
454 | }; | |
455 | ||
1da177e4 LT |
456 | MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); |
457 | MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); | |
458 | MODULE_LICENSE("GPL"); | |
459 | ||
494a973e | 460 | static int __init mac8390_init(void) |
1da177e4 | 461 | { |
494a973e | 462 | return nubus_driver_register(&mac8390_driver); |
1da177e4 | 463 | } |
494a973e | 464 | module_init(mac8390_init); |
1da177e4 | 465 | |
494a973e | 466 | static void __exit mac8390_exit(void) |
1da177e4 | 467 | { |
494a973e | 468 | nubus_driver_unregister(&mac8390_driver); |
1da177e4 | 469 | } |
494a973e | 470 | module_exit(mac8390_exit); |
1da177e4 | 471 | |
ca17584b SH |
472 | static const struct net_device_ops mac8390_netdev_ops = { |
473 | .ndo_open = mac8390_open, | |
474 | .ndo_stop = mac8390_close, | |
217cbfa8 FT |
475 | .ndo_start_xmit = __ei_start_xmit, |
476 | .ndo_tx_timeout = __ei_tx_timeout, | |
477 | .ndo_get_stats = __ei_get_stats, | |
afc4b13d | 478 | .ndo_set_rx_mode = __ei_set_multicast_list, |
ca17584b | 479 | .ndo_validate_addr = eth_validate_addr, |
fe96aaa1 | 480 | .ndo_set_mac_address = eth_mac_addr, |
ca17584b | 481 | #ifdef CONFIG_NET_POLL_CONTROLLER |
4e0168fa | 482 | .ndo_poll_controller = __ei_poll, |
ca17584b SH |
483 | #endif |
484 | }; | |
485 | ||
494a973e FT |
486 | static int mac8390_initdev(struct net_device *dev, struct nubus_board *board, |
487 | enum mac8390_type type) | |
1da177e4 | 488 | { |
8e4d9696 | 489 | static u32 fwrd4_offsets[16] = { |
1da177e4 LT |
490 | 0, 4, 8, 12, |
491 | 16, 20, 24, 28, | |
492 | 32, 36, 40, 44, | |
493 | 48, 52, 56, 60 | |
494 | }; | |
8e4d9696 | 495 | static u32 back4_offsets[16] = { |
1da177e4 LT |
496 | 60, 56, 52, 48, |
497 | 44, 40, 36, 32, | |
498 | 28, 24, 20, 16, | |
499 | 12, 8, 4, 0 | |
500 | }; | |
8e4d9696 | 501 | static u32 fwrd2_offsets[16] = { |
1da177e4 LT |
502 | 0, 2, 4, 6, |
503 | 8, 10, 12, 14, | |
504 | 16, 18, 20, 22, | |
505 | 24, 26, 28, 30 | |
506 | }; | |
507 | ||
2964db0f | 508 | int access_bitmode = 0; |
6aa20a22 | 509 | |
1da177e4 | 510 | /* Now fill in our stuff */ |
ca17584b | 511 | dev->netdev_ops = &mac8390_netdev_ops; |
1da177e4 LT |
512 | |
513 | /* GAR, ei_status is actually a macro even though it looks global */ | |
514 | ei_status.name = cardname[type]; | |
515 | ei_status.word16 = word16[type]; | |
516 | ||
517 | /* Cabletron's TX/RX buffers are backwards */ | |
518 | if (type == MAC8390_CABLETRON) { | |
8e4d9696 JP |
519 | ei_status.tx_start_page = CABLETRON_TX_START_PG; |
520 | ei_status.rx_start_page = CABLETRON_RX_START_PG; | |
521 | ei_status.stop_page = CABLETRON_RX_STOP_PG; | |
522 | ei_status.rmem_start = dev->mem_start; | |
523 | ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; | |
1da177e4 | 524 | } else { |
8e4d9696 JP |
525 | ei_status.tx_start_page = WD_START_PG; |
526 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
527 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
528 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | |
529 | ei_status.rmem_end = dev->mem_end; | |
1da177e4 | 530 | } |
6aa20a22 | 531 | |
1da177e4 | 532 | /* Fill in model-specific information and functions */ |
35076402 | 533 | switch (type) { |
1da177e4 LT |
534 | case MAC8390_FARALLON: |
535 | case MAC8390_APPLE: | |
35076402 JP |
536 | switch (mac8390_testio(dev->mem_start)) { |
537 | case ACCESS_UNKNOWN: | |
4a1b27c9 FT |
538 | dev_err(&board->dev, |
539 | "Don't know how to access card memory\n"); | |
35076402 | 540 | return -ENODEV; |
2964db0f | 541 | |
35076402 JP |
542 | case ACCESS_16: |
543 | /* 16 bit card, register map is reversed */ | |
c061b18d JP |
544 | ei_status.reset_8390 = mac8390_no_reset; |
545 | ei_status.block_input = slow_sane_block_input; | |
546 | ei_status.block_output = slow_sane_block_output; | |
547 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
35076402 JP |
548 | ei_status.reg_offset = back4_offsets; |
549 | break; | |
2964db0f | 550 | |
35076402 JP |
551 | case ACCESS_32: |
552 | /* 32 bit card, register map is reversed */ | |
c061b18d JP |
553 | ei_status.reset_8390 = mac8390_no_reset; |
554 | ei_status.block_input = sane_block_input; | |
555 | ei_status.block_output = sane_block_output; | |
556 | ei_status.get_8390_hdr = sane_get_8390_hdr; | |
35076402 JP |
557 | ei_status.reg_offset = back4_offsets; |
558 | access_bitmode = 1; | |
559 | break; | |
2964db0f FT |
560 | } |
561 | break; | |
562 | ||
1da177e4 | 563 | case MAC8390_ASANTE: |
2964db0f FT |
564 | /* Some Asante cards pass the 32 bit test |
565 | * but overwrite system memory when run at 32 bit. | |
566 | * so we run them all at 16 bit. | |
567 | */ | |
c061b18d JP |
568 | ei_status.reset_8390 = mac8390_no_reset; |
569 | ei_status.block_input = slow_sane_block_input; | |
570 | ei_status.block_output = slow_sane_block_output; | |
571 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
1da177e4 | 572 | ei_status.reg_offset = back4_offsets; |
1da177e4 | 573 | break; |
2964db0f | 574 | |
1da177e4 LT |
575 | case MAC8390_CABLETRON: |
576 | /* 16 bit card, register map is short forward */ | |
c061b18d JP |
577 | ei_status.reset_8390 = mac8390_no_reset; |
578 | ei_status.block_input = slow_sane_block_input; | |
579 | ei_status.block_output = slow_sane_block_output; | |
580 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
1da177e4 | 581 | ei_status.reg_offset = fwrd2_offsets; |
1da177e4 | 582 | break; |
2964db0f | 583 | |
1da177e4 LT |
584 | case MAC8390_DAYNA: |
585 | case MAC8390_KINETICS: | |
2964db0f | 586 | /* 16 bit memory, register map is forward */ |
1da177e4 | 587 | /* dayna and similar */ |
c061b18d JP |
588 | ei_status.reset_8390 = mac8390_no_reset; |
589 | ei_status.block_input = dayna_block_input; | |
590 | ei_status.block_output = dayna_block_output; | |
591 | ei_status.get_8390_hdr = dayna_get_8390_hdr; | |
1da177e4 | 592 | ei_status.reg_offset = fwrd4_offsets; |
1da177e4 | 593 | break; |
2964db0f FT |
594 | |
595 | case MAC8390_INTERLAN: | |
596 | /* 16 bit memory, register map is forward */ | |
c061b18d JP |
597 | ei_status.reset_8390 = interlan_reset; |
598 | ei_status.block_input = slow_sane_block_input; | |
599 | ei_status.block_output = slow_sane_block_output; | |
600 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
8e4d9696 JP |
601 | ei_status.reg_offset = fwrd4_offsets; |
602 | break; | |
2964db0f | 603 | |
1da177e4 | 604 | default: |
4a1b27c9 | 605 | dev_err(&board->dev, "Unsupported card type\n"); |
1da177e4 LT |
606 | return -ENODEV; |
607 | } | |
6aa20a22 | 608 | |
8c6270f9 | 609 | __NS8390_init(dev, 0); |
1da177e4 LT |
610 | |
611 | /* Good, done, now spit out some messages */ | |
4a1b27c9 FT |
612 | dev_info(&board->dev, "%s (type %s)\n", board->name, cardname[type]); |
613 | dev_info(&board->dev, "MAC %pM, IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", | |
614 | dev->dev_addr, dev->irq, | |
615 | (unsigned int)(dev->mem_end - dev->mem_start) >> 10, | |
616 | dev->mem_start, access_bitmode ? 32 : 16); | |
1da177e4 LT |
617 | return 0; |
618 | } | |
619 | ||
620 | static int mac8390_open(struct net_device *dev) | |
621 | { | |
38454db3 FT |
622 | int err; |
623 | ||
8c6270f9 | 624 | __ei_open(dev); |
38454db3 FT |
625 | err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev); |
626 | if (err) | |
d92222e2 | 627 | pr_err("%s: unable to get IRQ %d\n", dev->name, dev->irq); |
38454db3 | 628 | return err; |
1da177e4 LT |
629 | } |
630 | ||
631 | static int mac8390_close(struct net_device *dev) | |
632 | { | |
633 | free_irq(dev->irq, dev); | |
8c6270f9 | 634 | __ei_close(dev); |
1da177e4 LT |
635 | return 0; |
636 | } | |
637 | ||
638 | static void mac8390_no_reset(struct net_device *dev) | |
639 | { | |
c45f812f MW |
640 | struct ei_device *ei_local = netdev_priv(dev); |
641 | ||
1da177e4 | 642 | ei_status.txing = 0; |
c45f812f | 643 | netif_info(ei_local, hw, dev, "reset not supported\n"); |
1da177e4 LT |
644 | } |
645 | ||
2964db0f FT |
646 | static void interlan_reset(struct net_device *dev) |
647 | { | |
8e4d9696 | 648 | unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq)); |
c45f812f MW |
649 | struct ei_device *ei_local = netdev_priv(dev); |
650 | ||
651 | netif_info(ei_local, hw, dev, "Need to reset the NS8390 t=%lu...", | |
652 | jiffies); | |
2964db0f FT |
653 | ei_status.txing = 0; |
654 | target[0xC0000] = 0; | |
c45f812f | 655 | if (netif_msg_hw(ei_local)) |
18c00191 | 656 | pr_cont("reset complete\n"); |
2964db0f FT |
657 | } |
658 | ||
1da177e4 LT |
659 | /* dayna_memcpy_fromio/dayna_memcpy_toio */ |
660 | /* directly from daynaport.c by Alan Cox */ | |
8e4d9696 JP |
661 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, |
662 | int count) | |
1da177e4 | 663 | { |
09cc07a5 | 664 | volatile unsigned char *ptr; |
8e4d9696 JP |
665 | unsigned char *target = to; |
666 | from <<= 1; /* word, skip overhead */ | |
667 | ptr = (unsigned char *)(dev->mem_start+from); | |
1da177e4 | 668 | /* Leading byte? */ |
8e4d9696 | 669 | if (from & 2) { |
09cc07a5 AV |
670 | *target++ = ptr[-1]; |
671 | ptr += 2; | |
1da177e4 LT |
672 | count--; |
673 | } | |
8e4d9696 | 674 | while (count >= 2) { |
09cc07a5 AV |
675 | *(unsigned short *)target = *(unsigned short volatile *)ptr; |
676 | ptr += 4; /* skip cruft */ | |
677 | target += 2; | |
8e4d9696 | 678 | count -= 2; |
1da177e4 LT |
679 | } |
680 | /* Trailing byte? */ | |
8e4d9696 | 681 | if (count) |
09cc07a5 | 682 | *target = *ptr; |
1da177e4 LT |
683 | } |
684 | ||
8e4d9696 JP |
685 | static void dayna_memcpy_tocard(struct net_device *dev, int to, |
686 | const void *from, int count) | |
1da177e4 LT |
687 | { |
688 | volatile unsigned short *ptr; | |
8e4d9696 JP |
689 | const unsigned char *src = from; |
690 | to <<= 1; /* word, skip overhead */ | |
691 | ptr = (unsigned short *)(dev->mem_start+to); | |
1da177e4 | 692 | /* Leading byte? */ |
8e4d9696 | 693 | if (to & 2) { /* avoid a byte write (stomps on other data) */ |
09cc07a5 | 694 | ptr[-1] = (ptr[-1]&0xFF00)|*src++; |
1da177e4 LT |
695 | ptr++; |
696 | count--; | |
697 | } | |
8e4d9696 JP |
698 | while (count >= 2) { |
699 | *ptr++ = *(unsigned short *)src; /* Copy and */ | |
1da177e4 | 700 | ptr++; /* skip cruft */ |
09cc07a5 | 701 | src += 2; |
8e4d9696 | 702 | count -= 2; |
1da177e4 LT |
703 | } |
704 | /* Trailing byte? */ | |
8e4d9696 | 705 | if (count) { |
1da177e4 | 706 | /* card doesn't like byte writes */ |
8e4d9696 | 707 | *ptr = (*ptr & 0x00FF) | (*src << 8); |
1da177e4 LT |
708 | } |
709 | } | |
710 | ||
711 | /* sane block input/output */ | |
712 | static void sane_get_8390_hdr(struct net_device *dev, | |
713 | struct e8390_pkt_hdr *hdr, int ring_page) | |
714 | { | |
715 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
4042cd75 | 716 | memcpy_fromio(hdr, (void __iomem *)dev->mem_start + hdr_start, 4); |
1da177e4 LT |
717 | /* Fix endianness */ |
718 | hdr->count = swab16(hdr->count); | |
719 | } | |
720 | ||
721 | static void sane_block_input(struct net_device *dev, int count, | |
722 | struct sk_buff *skb, int ring_offset) | |
723 | { | |
724 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
725 | unsigned long xfer_start = xfer_base + dev->mem_start; | |
726 | ||
727 | if (xfer_start + count > ei_status.rmem_end) { | |
728 | /* We must wrap the input move. */ | |
729 | int semi_count = ei_status.rmem_end - xfer_start; | |
4042cd75 GU |
730 | memcpy_fromio(skb->data, |
731 | (void __iomem *)dev->mem_start + xfer_base, | |
8e4d9696 | 732 | semi_count); |
1da177e4 | 733 | count -= semi_count; |
4042cd75 GU |
734 | memcpy_fromio(skb->data + semi_count, |
735 | (void __iomem *)ei_status.rmem_start, count); | |
7e364e96 | 736 | } else { |
4042cd75 GU |
737 | memcpy_fromio(skb->data, |
738 | (void __iomem *)dev->mem_start + xfer_base, | |
739 | count); | |
1da177e4 LT |
740 | } |
741 | } | |
742 | ||
743 | static void sane_block_output(struct net_device *dev, int count, | |
744 | const unsigned char *buf, int start_page) | |
745 | { | |
746 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 747 | |
4042cd75 | 748 | memcpy_toio((void __iomem *)dev->mem_start + shmem, buf, count); |
1da177e4 LT |
749 | } |
750 | ||
751 | /* dayna block input/output */ | |
8e4d9696 JP |
752 | static void dayna_get_8390_hdr(struct net_device *dev, |
753 | struct e8390_pkt_hdr *hdr, int ring_page) | |
1da177e4 LT |
754 | { |
755 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
756 | ||
5c7fffd0 | 757 | dayna_memcpy_fromcard(dev, hdr, hdr_start, 4); |
1da177e4 | 758 | /* Fix endianness */ |
8e4d9696 | 759 | hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8); |
1da177e4 LT |
760 | } |
761 | ||
8e4d9696 JP |
762 | static void dayna_block_input(struct net_device *dev, int count, |
763 | struct sk_buff *skb, int ring_offset) | |
1da177e4 LT |
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 | ||
8e4d9696 | 771 | if (xfer_start + count > ei_status.rmem_end) { |
1da177e4 LT |
772 | /* We must wrap the input move. */ |
773 | int semi_count = ei_status.rmem_end - xfer_start; | |
774 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); | |
775 | count -= semi_count; | |
776 | dayna_memcpy_fromcard(dev, skb->data + semi_count, | |
777 | ei_status.rmem_start - dev->mem_start, | |
778 | count); | |
8e4d9696 | 779 | } else { |
1da177e4 LT |
780 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); |
781 | } | |
782 | } | |
783 | ||
8e4d9696 JP |
784 | static void dayna_block_output(struct net_device *dev, int count, |
785 | const unsigned char *buf, | |
786 | int start_page) | |
1da177e4 LT |
787 | { |
788 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 789 | |
1da177e4 LT |
790 | dayna_memcpy_tocard(dev, shmem, buf, count); |
791 | } | |
792 | ||
793 | /* Cabletron block I/O */ | |
8e4d9696 JP |
794 | static void slow_sane_get_8390_hdr(struct net_device *dev, |
795 | struct e8390_pkt_hdr *hdr, | |
796 | int ring_page) | |
1da177e4 LT |
797 | { |
798 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
7e364e96 | 799 | word_memcpy_fromcard(hdr, dev->mem_start + hdr_start, 4); |
1da177e4 LT |
800 | /* Register endianism - fix here rather than 8390.c */ |
801 | hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); | |
802 | } | |
803 | ||
8e4d9696 JP |
804 | static void slow_sane_block_input(struct net_device *dev, int count, |
805 | struct sk_buff *skb, int ring_offset) | |
1da177e4 LT |
806 | { |
807 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
808 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
809 | ||
8e4d9696 | 810 | if (xfer_start + count > ei_status.rmem_end) { |
1da177e4 LT |
811 | /* We must wrap the input move. */ |
812 | int semi_count = ei_status.rmem_end - xfer_start; | |
7e364e96 | 813 | word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, |
5c7fffd0 | 814 | semi_count); |
1da177e4 LT |
815 | count -= semi_count; |
816 | word_memcpy_fromcard(skb->data + semi_count, | |
7e364e96 | 817 | ei_status.rmem_start, count); |
8e4d9696 | 818 | } else { |
7e364e96 GU |
819 | word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, |
820 | count); | |
1da177e4 LT |
821 | } |
822 | } | |
823 | ||
8e4d9696 JP |
824 | static void slow_sane_block_output(struct net_device *dev, int count, |
825 | const unsigned char *buf, int start_page) | |
1da177e4 LT |
826 | { |
827 | long shmem = (start_page - WD_START_PG)<<8; | |
828 | ||
7e364e96 | 829 | word_memcpy_tocard(dev->mem_start + shmem, buf, count); |
1da177e4 LT |
830 | } |
831 | ||
7e364e96 | 832 | static void word_memcpy_tocard(unsigned long tp, const void *fp, int count) |
1da177e4 | 833 | { |
7e364e96 | 834 | volatile unsigned short *to = (void *)tp; |
1da177e4 LT |
835 | const unsigned short *from = fp; |
836 | ||
837 | count++; | |
8e4d9696 | 838 | count /= 2; |
1da177e4 | 839 | |
8e4d9696 JP |
840 | while (count--) |
841 | *to++ = *from++; | |
1da177e4 LT |
842 | } |
843 | ||
7e364e96 | 844 | static void word_memcpy_fromcard(void *tp, unsigned long fp, int count) |
1da177e4 LT |
845 | { |
846 | unsigned short *to = tp; | |
7e364e96 | 847 | const volatile unsigned short *from = (const void *)fp; |
1da177e4 LT |
848 | |
849 | count++; | |
8e4d9696 | 850 | count /= 2; |
1da177e4 | 851 | |
8e4d9696 JP |
852 | while (count--) |
853 | *to++ = *from++; | |
1da177e4 LT |
854 | } |
855 | ||
6aa20a22 | 856 |