Commit | Line | Data |
---|---|---|
dc3eb2f4 | 1 | // SPDX-License-Identifier: GPL-1.0+ |
1da177e4 LT |
2 | /* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike) |
3 | Ethernet cards on Linux */ | |
4 | /* Based on the former daynaport.c driver, by Alan Cox. Some code | |
5 | taken from or inspired by skeleton.c by Donald Becker, acenic.c by | |
dc3eb2f4 | 6 | Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker. */ |
1da177e4 | 7 | |
6aa20a22 | 8 | /* 2000-02-28: support added for Dayna and Kinetics cards by |
1da177e4 LT |
9 | A.G.deWijn@phys.uu.nl */ |
10 | /* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */ | |
11 | /* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */ | |
12 | /* 2001-05-15: support for Cabletron ported from old daynaport driver | |
6aa20a22 | 13 | * and fixed access to Sonic Sys card which masquerades as a Farallon |
1da177e4 | 14 | * by rayk@knightsmanor.org */ |
2964db0f FT |
15 | /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */ |
16 | /* 2003-12-26: Make sure Asante cards always work. */ | |
1da177e4 | 17 | |
18c00191 JP |
18 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
19 | ||
1da177e4 LT |
20 | #include <linux/module.h> |
21 | #include <linux/kernel.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/fcntl.h> | |
24 | #include <linux/interrupt.h> | |
25 | #include <linux/ptrace.h> | |
26 | #include <linux/ioport.h> | |
27 | #include <linux/nubus.h> | |
28 | #include <linux/in.h> | |
1da177e4 LT |
29 | #include <linux/string.h> |
30 | #include <linux/errno.h> | |
31 | #include <linux/init.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/etherdevice.h> | |
34 | #include <linux/skbuff.h> | |
35 | #include <linux/bitops.h> | |
8e4d9696 | 36 | #include <linux/io.h> |
1da177e4 | 37 | |
1da177e4 LT |
38 | #include <asm/dma.h> |
39 | #include <asm/hwtest.h> | |
40 | #include <asm/macints.h> | |
41 | ||
8c6270f9 | 42 | static char version[] = |
18c00191 | 43 | "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n"; |
8c6270f9 AV |
44 | |
45 | #define EI_SHIFT(x) (ei_local->reg_offset[x]) | |
8e4d9696 JP |
46 | #define ei_inb(port) in_8(port) |
47 | #define ei_outb(val, port) out_8(port, val) | |
48 | #define ei_inb_p(port) in_8(port) | |
49 | #define ei_outb_p(val, port) out_8(port, val) | |
8c6270f9 AV |
50 | |
51 | #include "lib8390.c" | |
1da177e4 LT |
52 | |
53 | #define WD_START_PG 0x00 /* First page of TX buffer */ | |
54 | #define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */ | |
55 | #define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */ | |
8e4d9696 JP |
56 | #define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG |
57 | /* First page of TX buffer */ | |
1da177e4 | 58 | |
8e4d9696 JP |
59 | /* |
60 | * Unfortunately it seems we have to hardcode these for the moment | |
61 | * Shouldn't the card know about this? | |
62 | * Does anyone know where to read it off the card? | |
63 | * Do we trust the data provided by the card? | |
64 | */ | |
1da177e4 LT |
65 | |
66 | #define DAYNA_8390_BASE 0x80000 | |
67 | #define DAYNA_8390_MEM 0x00000 | |
68 | ||
6aa20a22 | 69 | #define CABLETRON_8390_BASE 0x90000 |
1da177e4 LT |
70 | #define CABLETRON_8390_MEM 0x00000 |
71 | ||
2964db0f FT |
72 | #define INTERLAN_8390_BASE 0xE0000 |
73 | #define INTERLAN_8390_MEM 0xD0000 | |
74 | ||
1da177e4 LT |
75 | enum mac8390_type { |
76 | MAC8390_NONE = -1, | |
77 | MAC8390_APPLE, | |
78 | MAC8390_ASANTE, | |
2964db0f | 79 | MAC8390_FARALLON, |
1da177e4 LT |
80 | MAC8390_CABLETRON, |
81 | MAC8390_DAYNA, | |
82 | MAC8390_INTERLAN, | |
83 | MAC8390_KINETICS, | |
1da177e4 LT |
84 | }; |
85 | ||
8e4d9696 | 86 | static const char *cardname[] = { |
1da177e4 LT |
87 | "apple", |
88 | "asante", | |
89 | "farallon", | |
90 | "cabletron", | |
91 | "dayna", | |
92 | "interlan", | |
93 | "kinetics", | |
1da177e4 LT |
94 | }; |
95 | ||
8e4d9696 | 96 | static const int word16[] = { |
1da177e4 LT |
97 | 1, /* apple */ |
98 | 1, /* asante */ | |
99 | 1, /* farallon */ | |
100 | 1, /* cabletron */ | |
101 | 0, /* dayna */ | |
102 | 1, /* interlan */ | |
103 | 0, /* kinetics */ | |
1da177e4 LT |
104 | }; |
105 | ||
106 | /* on which cards do we use NuBus resources? */ | |
8e4d9696 | 107 | static const int useresources[] = { |
1da177e4 LT |
108 | 1, /* apple */ |
109 | 1, /* asante */ | |
110 | 1, /* farallon */ | |
111 | 0, /* cabletron */ | |
112 | 0, /* dayna */ | |
113 | 0, /* interlan */ | |
114 | 0, /* kinetics */ | |
2964db0f FT |
115 | }; |
116 | ||
117 | enum mac8390_access { | |
118 | ACCESS_UNKNOWN = 0, | |
119 | ACCESS_32, | |
120 | ACCESS_16, | |
1da177e4 LT |
121 | }; |
122 | ||
8e4d9696 | 123 | extern int mac8390_memtest(struct net_device *dev); |
494a973e | 124 | static int mac8390_initdev(struct net_device *dev, struct nubus_board *board, |
1da177e4 LT |
125 | enum mac8390_type type); |
126 | ||
8e4d9696 JP |
127 | static int mac8390_open(struct net_device *dev); |
128 | static int mac8390_close(struct net_device *dev); | |
1da177e4 | 129 | static void mac8390_no_reset(struct net_device *dev); |
2964db0f | 130 | static void interlan_reset(struct net_device *dev); |
1da177e4 | 131 | |
2964db0f | 132 | /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/ |
1da177e4 LT |
133 | static void sane_get_8390_hdr(struct net_device *dev, |
134 | struct e8390_pkt_hdr *hdr, int ring_page); | |
8e4d9696 JP |
135 | static void sane_block_input(struct net_device *dev, int count, |
136 | struct sk_buff *skb, int ring_offset); | |
137 | static void sane_block_output(struct net_device *dev, int count, | |
138 | const unsigned char *buf, const int start_page); | |
1da177e4 LT |
139 | |
140 | /* dayna_memcpy to and from card */ | |
141 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, | |
142 | int from, int count); | |
143 | static void dayna_memcpy_tocard(struct net_device *dev, int to, | |
144 | const void *from, int count); | |
145 | ||
146 | /* Dayna - Dayna/Kinetics use this */ | |
147 | static void dayna_get_8390_hdr(struct net_device *dev, | |
148 | struct e8390_pkt_hdr *hdr, int ring_page); | |
149 | static void dayna_block_input(struct net_device *dev, int count, | |
150 | struct sk_buff *skb, int ring_offset); | |
151 | static void dayna_block_output(struct net_device *dev, int count, | |
152 | const unsigned char *buf, int start_page); | |
153 | ||
1da177e4 LT |
154 | /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */ |
155 | static void slow_sane_get_8390_hdr(struct net_device *dev, | |
156 | struct e8390_pkt_hdr *hdr, int ring_page); | |
157 | static void slow_sane_block_input(struct net_device *dev, int count, | |
158 | struct sk_buff *skb, int ring_offset); | |
159 | static void slow_sane_block_output(struct net_device *dev, int count, | |
160 | const unsigned char *buf, int start_page); | |
7e364e96 GU |
161 | static void word_memcpy_tocard(unsigned long tp, const void *fp, int count); |
162 | static void word_memcpy_fromcard(void *tp, unsigned long fp, int count); | |
1da177e4 | 163 | |
494a973e | 164 | static enum mac8390_type mac8390_ident(struct nubus_rsrc *fres) |
1da177e4 | 165 | { |
189e19e8 | 166 | switch (fres->dr_sw) { |
35076402 | 167 | case NUBUS_DRSW_3COM: |
189e19e8 | 168 | switch (fres->dr_hw) { |
35076402 JP |
169 | case NUBUS_DRHW_APPLE_SONIC_NB: |
170 | case NUBUS_DRHW_APPLE_SONIC_LC: | |
171 | case NUBUS_DRHW_SONNET: | |
172 | return MAC8390_NONE; | |
35076402 JP |
173 | default: |
174 | return MAC8390_APPLE; | |
35076402 | 175 | } |
2964db0f | 176 | |
35076402 | 177 | case NUBUS_DRSW_APPLE: |
189e19e8 | 178 | switch (fres->dr_hw) { |
35076402 JP |
179 | case NUBUS_DRHW_ASANTE_LC: |
180 | return MAC8390_NONE; | |
35076402 JP |
181 | case NUBUS_DRHW_CABLETRON: |
182 | return MAC8390_CABLETRON; | |
35076402 JP |
183 | default: |
184 | return MAC8390_APPLE; | |
35076402 | 185 | } |
2964db0f | 186 | |
35076402 JP |
187 | case NUBUS_DRSW_ASANTE: |
188 | return MAC8390_ASANTE; | |
35076402 JP |
189 | |
190 | case NUBUS_DRSW_TECHWORKS: | |
191 | case NUBUS_DRSW_DAYNA2: | |
192 | case NUBUS_DRSW_DAYNA_LC: | |
189e19e8 | 193 | if (fres->dr_hw == NUBUS_DRHW_CABLETRON) |
35076402 JP |
194 | return MAC8390_CABLETRON; |
195 | else | |
196 | return MAC8390_APPLE; | |
35076402 JP |
197 | |
198 | case NUBUS_DRSW_FARALLON: | |
199 | return MAC8390_FARALLON; | |
2964db0f | 200 | |
35076402 | 201 | case NUBUS_DRSW_KINETICS: |
189e19e8 | 202 | switch (fres->dr_hw) { |
35076402 JP |
203 | case NUBUS_DRHW_INTERLAN: |
204 | return MAC8390_INTERLAN; | |
35076402 JP |
205 | default: |
206 | return MAC8390_KINETICS; | |
35076402 | 207 | } |
35076402 JP |
208 | |
209 | case NUBUS_DRSW_DAYNA: | |
8e4d9696 JP |
210 | /* |
211 | * These correspond to Dayna Sonic cards | |
212 | * which use the macsonic driver | |
213 | */ | |
189e19e8 FT |
214 | if (fres->dr_hw == NUBUS_DRHW_SMC9194 || |
215 | fres->dr_hw == NUBUS_DRHW_INTERLAN) | |
35076402 JP |
216 | return MAC8390_NONE; |
217 | else | |
218 | return MAC8390_DAYNA; | |
2964db0f | 219 | } |
1da177e4 LT |
220 | return MAC8390_NONE; |
221 | } | |
222 | ||
494a973e | 223 | static enum mac8390_access mac8390_testio(unsigned long membase) |
2964db0f | 224 | { |
bb9e5c5b FT |
225 | u32 outdata = 0xA5A0B5B0; |
226 | u32 indata = 0; | |
227 | ||
2964db0f | 228 | /* Try writing 32 bits */ |
bb9e5c5b FT |
229 | nubus_writel(outdata, membase); |
230 | /* Now read it back */ | |
231 | indata = nubus_readl(membase); | |
232 | if (outdata == indata) | |
2964db0f | 233 | return ACCESS_32; |
bb9e5c5b FT |
234 | |
235 | outdata = 0xC5C0D5D0; | |
236 | indata = 0; | |
237 | ||
2964db0f | 238 | /* Write 16 bit output */ |
5c7fffd0 | 239 | word_memcpy_tocard(membase, &outdata, 4); |
2964db0f | 240 | /* Now read it back */ |
5c7fffd0 | 241 | word_memcpy_fromcard(&indata, membase, 4); |
2964db0f FT |
242 | if (outdata == indata) |
243 | return ACCESS_16; | |
bb9e5c5b | 244 | |
2964db0f FT |
245 | return ACCESS_UNKNOWN; |
246 | } | |
247 | ||
494a973e | 248 | static int mac8390_memsize(unsigned long membase) |
1da177e4 LT |
249 | { |
250 | unsigned long flags; | |
251 | int i, j; | |
6aa20a22 | 252 | |
1da177e4 LT |
253 | local_irq_save(flags); |
254 | /* Check up to 32K in 4K increments */ | |
255 | for (i = 0; i < 8; i++) { | |
8e4d9696 | 256 | volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000)); |
1da177e4 LT |
257 | |
258 | /* Unwriteable - we have a fully decoded card and the | |
259 | RAM end located */ | |
260 | if (hwreg_present(m) == 0) | |
261 | break; | |
6aa20a22 | 262 | |
1da177e4 LT |
263 | /* write a distinctive byte */ |
264 | *m = 0xA5A0 | i; | |
265 | /* check that we read back what we wrote */ | |
266 | if (*m != (0xA5A0 | i)) | |
267 | break; | |
268 | ||
269 | /* check for partial decode and wrap */ | |
270 | for (j = 0; j < i; j++) { | |
8e4d9696 | 271 | volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000)); |
1da177e4 LT |
272 | if (*p != (0xA5A0 | j)) |
273 | break; | |
8e4d9696 JP |
274 | } |
275 | } | |
1da177e4 | 276 | local_irq_restore(flags); |
8e4d9696 JP |
277 | /* |
278 | * in any case, we stopped once we tried one block too many, | |
279 | * or once we reached 32K | |
280 | */ | |
281 | return i * 0x1000; | |
1da177e4 LT |
282 | } |
283 | ||
494a973e FT |
284 | static bool mac8390_rsrc_init(struct net_device *dev, |
285 | struct nubus_rsrc *fres, | |
286 | enum mac8390_type cardtype) | |
f6de7acc | 287 | { |
494a973e | 288 | struct nubus_board *board = fres->board; |
f6de7acc JP |
289 | struct nubus_dir dir; |
290 | struct nubus_dirent ent; | |
291 | int offset; | |
292 | volatile unsigned short *i; | |
973a34c0 | 293 | u8 addr[ETH_ALEN]; |
f6de7acc | 294 | |
494a973e | 295 | dev->irq = SLOT2IRQ(board->slot); |
f6de7acc | 296 | /* This is getting to be a habit */ |
494a973e | 297 | dev->base_addr = board->slot_addr | ((board->slot & 0xf) << 20); |
f6de7acc JP |
298 | |
299 | /* | |
300 | * Get some Nubus info - we will trust the card's idea | |
301 | * of where its memory and registers are. | |
302 | */ | |
303 | ||
494a973e | 304 | if (nubus_get_func_dir(fres, &dir) == -1) { |
4a1b27c9 FT |
305 | dev_err(&board->dev, |
306 | "Unable to get Nubus functional directory\n"); | |
f6de7acc JP |
307 | return false; |
308 | } | |
309 | ||
310 | /* Get the MAC address */ | |
311 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) { | |
4a1b27c9 | 312 | dev_info(&board->dev, "MAC address resource not found\n"); |
f6de7acc JP |
313 | return false; |
314 | } | |
315 | ||
973a34c0 JK |
316 | nubus_get_rsrc_mem(addr, &ent, 6); |
317 | eth_hw_addr_set(dev, addr); | |
f6de7acc JP |
318 | |
319 | if (useresources[cardtype] == 1) { | |
320 | nubus_rewinddir(&dir); | |
321 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, | |
322 | &ent) == -1) { | |
4a1b27c9 FT |
323 | dev_err(&board->dev, |
324 | "Memory offset resource not found\n"); | |
f6de7acc JP |
325 | return false; |
326 | } | |
327 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
328 | dev->mem_start = dev->base_addr + offset; | |
329 | /* yes, this is how the Apple driver does it */ | |
330 | dev->base_addr = dev->mem_start + 0x10000; | |
331 | nubus_rewinddir(&dir); | |
332 | if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, | |
333 | &ent) == -1) { | |
4a1b27c9 FT |
334 | dev_info(&board->dev, |
335 | "Memory length resource not found, probing\n"); | |
f6de7acc JP |
336 | offset = mac8390_memsize(dev->mem_start); |
337 | } else { | |
338 | nubus_get_rsrc_mem(&offset, &ent, 4); | |
339 | } | |
340 | dev->mem_end = dev->mem_start + offset; | |
341 | } else { | |
342 | switch (cardtype) { | |
343 | case MAC8390_KINETICS: | |
344 | case MAC8390_DAYNA: /* it's the same */ | |
494a973e | 345 | dev->base_addr = (int)(board->slot_addr + |
f6de7acc | 346 | DAYNA_8390_BASE); |
494a973e | 347 | dev->mem_start = (int)(board->slot_addr + |
f6de7acc JP |
348 | DAYNA_8390_MEM); |
349 | dev->mem_end = dev->mem_start + | |
350 | mac8390_memsize(dev->mem_start); | |
351 | break; | |
352 | case MAC8390_INTERLAN: | |
494a973e | 353 | dev->base_addr = (int)(board->slot_addr + |
f6de7acc | 354 | INTERLAN_8390_BASE); |
494a973e | 355 | dev->mem_start = (int)(board->slot_addr + |
f6de7acc JP |
356 | INTERLAN_8390_MEM); |
357 | dev->mem_end = dev->mem_start + | |
358 | mac8390_memsize(dev->mem_start); | |
359 | break; | |
360 | case MAC8390_CABLETRON: | |
494a973e | 361 | dev->base_addr = (int)(board->slot_addr + |
f6de7acc | 362 | CABLETRON_8390_BASE); |
494a973e | 363 | dev->mem_start = (int)(board->slot_addr + |
f6de7acc JP |
364 | CABLETRON_8390_MEM); |
365 | /* The base address is unreadable if 0x00 | |
366 | * has been written to the command register | |
367 | * Reset the chip by writing E8390_NODMA + | |
368 | * E8390_PAGE0 + E8390_STOP just to be | |
369 | * sure | |
370 | */ | |
371 | i = (void *)dev->base_addr; | |
372 | *i = 0x21; | |
373 | dev->mem_end = dev->mem_start + | |
374 | mac8390_memsize(dev->mem_start); | |
375 | break; | |
376 | ||
377 | default: | |
4a1b27c9 FT |
378 | dev_err(&board->dev, |
379 | "No known base address for card type\n"); | |
f6de7acc JP |
380 | return false; |
381 | } | |
382 | } | |
383 | ||
384 | return true; | |
385 | } | |
386 | ||
494a973e | 387 | static int mac8390_device_probe(struct nubus_board *board) |
1da177e4 LT |
388 | { |
389 | struct net_device *dev; | |
1da177e4 | 390 | int err = -ENODEV; |
494a973e FT |
391 | struct nubus_rsrc *fres; |
392 | enum mac8390_type cardtype = MAC8390_NONE; | |
1da177e4 | 393 | |
217cbfa8 | 394 | dev = ____alloc_ei_netdev(0); |
1da177e4 | 395 | if (!dev) |
494a973e | 396 | return -ENOMEM; |
1da177e4 | 397 | |
494a973e | 398 | SET_NETDEV_DEV(dev, &board->dev); |
1da177e4 | 399 | |
494a973e FT |
400 | for_each_board_func_rsrc(board, fres) { |
401 | if (fres->category != NUBUS_CAT_NETWORK || | |
402 | fres->type != NUBUS_TYPE_ETHERNET) | |
41b84816 FT |
403 | continue; |
404 | ||
494a973e | 405 | cardtype = mac8390_ident(fres); |
8e4d9696 | 406 | if (cardtype == MAC8390_NONE) |
1da177e4 LT |
407 | continue; |
408 | ||
494a973e | 409 | if (mac8390_rsrc_init(dev, fres, cardtype)) |
1da177e4 LT |
410 | break; |
411 | } | |
494a973e FT |
412 | if (!fres) |
413 | goto out; | |
1da177e4 | 414 | |
494a973e FT |
415 | err = mac8390_initdev(dev, board, cardtype); |
416 | if (err) | |
1da177e4 | 417 | goto out; |
c45f812f | 418 | |
1da177e4 LT |
419 | err = register_netdev(dev); |
420 | if (err) | |
421 | goto out; | |
494a973e FT |
422 | |
423 | nubus_set_drvdata(board, dev); | |
424 | return 0; | |
1da177e4 LT |
425 | |
426 | out: | |
427 | free_netdev(dev); | |
494a973e FT |
428 | return err; |
429 | } | |
430 | ||
b2c943e5 | 431 | static void mac8390_device_remove(struct nubus_board *board) |
494a973e FT |
432 | { |
433 | struct net_device *dev = nubus_get_drvdata(board); | |
434 | ||
435 | unregister_netdev(dev); | |
436 | free_netdev(dev); | |
1da177e4 LT |
437 | } |
438 | ||
494a973e FT |
439 | static struct nubus_driver mac8390_driver = { |
440 | .probe = mac8390_device_probe, | |
441 | .remove = mac8390_device_remove, | |
442 | .driver = { | |
443 | .name = KBUILD_MODNAME, | |
444 | .owner = THIS_MODULE, | |
445 | } | |
446 | }; | |
447 | ||
1da177e4 LT |
448 | MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others"); |
449 | MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver"); | |
450 | MODULE_LICENSE("GPL"); | |
451 | ||
494a973e | 452 | static int __init mac8390_init(void) |
1da177e4 | 453 | { |
494a973e | 454 | return nubus_driver_register(&mac8390_driver); |
1da177e4 | 455 | } |
494a973e | 456 | module_init(mac8390_init); |
1da177e4 | 457 | |
494a973e | 458 | static void __exit mac8390_exit(void) |
1da177e4 | 459 | { |
494a973e | 460 | nubus_driver_unregister(&mac8390_driver); |
1da177e4 | 461 | } |
494a973e | 462 | module_exit(mac8390_exit); |
1da177e4 | 463 | |
ca17584b SH |
464 | static const struct net_device_ops mac8390_netdev_ops = { |
465 | .ndo_open = mac8390_open, | |
466 | .ndo_stop = mac8390_close, | |
217cbfa8 FT |
467 | .ndo_start_xmit = __ei_start_xmit, |
468 | .ndo_tx_timeout = __ei_tx_timeout, | |
469 | .ndo_get_stats = __ei_get_stats, | |
afc4b13d | 470 | .ndo_set_rx_mode = __ei_set_multicast_list, |
ca17584b | 471 | .ndo_validate_addr = eth_validate_addr, |
fe96aaa1 | 472 | .ndo_set_mac_address = eth_mac_addr, |
ca17584b | 473 | #ifdef CONFIG_NET_POLL_CONTROLLER |
4e0168fa | 474 | .ndo_poll_controller = __ei_poll, |
ca17584b SH |
475 | #endif |
476 | }; | |
477 | ||
494a973e FT |
478 | static int mac8390_initdev(struct net_device *dev, struct nubus_board *board, |
479 | enum mac8390_type type) | |
1da177e4 | 480 | { |
8e4d9696 | 481 | static u32 fwrd4_offsets[16] = { |
1da177e4 LT |
482 | 0, 4, 8, 12, |
483 | 16, 20, 24, 28, | |
484 | 32, 36, 40, 44, | |
485 | 48, 52, 56, 60 | |
486 | }; | |
8e4d9696 | 487 | static u32 back4_offsets[16] = { |
1da177e4 LT |
488 | 60, 56, 52, 48, |
489 | 44, 40, 36, 32, | |
490 | 28, 24, 20, 16, | |
491 | 12, 8, 4, 0 | |
492 | }; | |
8e4d9696 | 493 | static u32 fwrd2_offsets[16] = { |
1da177e4 LT |
494 | 0, 2, 4, 6, |
495 | 8, 10, 12, 14, | |
496 | 16, 18, 20, 22, | |
497 | 24, 26, 28, 30 | |
498 | }; | |
499 | ||
2964db0f | 500 | int access_bitmode = 0; |
6aa20a22 | 501 | |
1da177e4 | 502 | /* Now fill in our stuff */ |
ca17584b | 503 | dev->netdev_ops = &mac8390_netdev_ops; |
1da177e4 LT |
504 | |
505 | /* GAR, ei_status is actually a macro even though it looks global */ | |
506 | ei_status.name = cardname[type]; | |
507 | ei_status.word16 = word16[type]; | |
508 | ||
509 | /* Cabletron's TX/RX buffers are backwards */ | |
510 | if (type == MAC8390_CABLETRON) { | |
8e4d9696 JP |
511 | ei_status.tx_start_page = CABLETRON_TX_START_PG; |
512 | ei_status.rx_start_page = CABLETRON_RX_START_PG; | |
513 | ei_status.stop_page = CABLETRON_RX_STOP_PG; | |
514 | ei_status.rmem_start = dev->mem_start; | |
515 | ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256; | |
1da177e4 | 516 | } else { |
8e4d9696 JP |
517 | ei_status.tx_start_page = WD_START_PG; |
518 | ei_status.rx_start_page = WD_START_PG + TX_PAGES; | |
519 | ei_status.stop_page = (dev->mem_end - dev->mem_start)/256; | |
520 | ei_status.rmem_start = dev->mem_start + TX_PAGES*256; | |
521 | ei_status.rmem_end = dev->mem_end; | |
1da177e4 | 522 | } |
6aa20a22 | 523 | |
1da177e4 | 524 | /* Fill in model-specific information and functions */ |
35076402 | 525 | switch (type) { |
1da177e4 LT |
526 | case MAC8390_FARALLON: |
527 | case MAC8390_APPLE: | |
35076402 JP |
528 | switch (mac8390_testio(dev->mem_start)) { |
529 | case ACCESS_UNKNOWN: | |
4a1b27c9 FT |
530 | dev_err(&board->dev, |
531 | "Don't know how to access card memory\n"); | |
35076402 | 532 | return -ENODEV; |
2964db0f | 533 | |
35076402 JP |
534 | case ACCESS_16: |
535 | /* 16 bit card, register map is reversed */ | |
c061b18d JP |
536 | ei_status.reset_8390 = mac8390_no_reset; |
537 | ei_status.block_input = slow_sane_block_input; | |
538 | ei_status.block_output = slow_sane_block_output; | |
539 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
35076402 JP |
540 | ei_status.reg_offset = back4_offsets; |
541 | break; | |
2964db0f | 542 | |
35076402 JP |
543 | case ACCESS_32: |
544 | /* 32 bit card, register map is reversed */ | |
c061b18d JP |
545 | ei_status.reset_8390 = mac8390_no_reset; |
546 | ei_status.block_input = sane_block_input; | |
547 | ei_status.block_output = sane_block_output; | |
548 | ei_status.get_8390_hdr = sane_get_8390_hdr; | |
35076402 JP |
549 | ei_status.reg_offset = back4_offsets; |
550 | access_bitmode = 1; | |
551 | break; | |
2964db0f FT |
552 | } |
553 | break; | |
554 | ||
1da177e4 | 555 | case MAC8390_ASANTE: |
2964db0f FT |
556 | /* Some Asante cards pass the 32 bit test |
557 | * but overwrite system memory when run at 32 bit. | |
558 | * so we run them all at 16 bit. | |
559 | */ | |
c061b18d JP |
560 | ei_status.reset_8390 = mac8390_no_reset; |
561 | ei_status.block_input = slow_sane_block_input; | |
562 | ei_status.block_output = slow_sane_block_output; | |
563 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
1da177e4 | 564 | ei_status.reg_offset = back4_offsets; |
1da177e4 | 565 | break; |
2964db0f | 566 | |
1da177e4 LT |
567 | case MAC8390_CABLETRON: |
568 | /* 16 bit card, register map is short forward */ | |
c061b18d JP |
569 | ei_status.reset_8390 = mac8390_no_reset; |
570 | ei_status.block_input = slow_sane_block_input; | |
571 | ei_status.block_output = slow_sane_block_output; | |
572 | ei_status.get_8390_hdr = slow_sane_get_8390_hdr; | |
1da177e4 | 573 | ei_status.reg_offset = fwrd2_offsets; |
1da177e4 | 574 | break; |
2964db0f | 575 | |
1da177e4 LT |
576 | case MAC8390_DAYNA: |
577 | case MAC8390_KINETICS: | |
2964db0f | 578 | /* 16 bit memory, register map is forward */ |
1da177e4 | 579 | /* dayna and similar */ |
c061b18d JP |
580 | ei_status.reset_8390 = mac8390_no_reset; |
581 | ei_status.block_input = dayna_block_input; | |
582 | ei_status.block_output = dayna_block_output; | |
583 | ei_status.get_8390_hdr = dayna_get_8390_hdr; | |
1da177e4 | 584 | ei_status.reg_offset = fwrd4_offsets; |
1da177e4 | 585 | break; |
2964db0f FT |
586 | |
587 | case MAC8390_INTERLAN: | |
588 | /* 16 bit memory, register map is forward */ | |
c061b18d JP |
589 | ei_status.reset_8390 = interlan_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; | |
8e4d9696 JP |
593 | ei_status.reg_offset = fwrd4_offsets; |
594 | break; | |
2964db0f | 595 | |
1da177e4 | 596 | default: |
4a1b27c9 | 597 | dev_err(&board->dev, "Unsupported card type\n"); |
1da177e4 LT |
598 | return -ENODEV; |
599 | } | |
6aa20a22 | 600 | |
8c6270f9 | 601 | __NS8390_init(dev, 0); |
1da177e4 LT |
602 | |
603 | /* Good, done, now spit out some messages */ | |
4a1b27c9 FT |
604 | dev_info(&board->dev, "%s (type %s)\n", board->name, cardname[type]); |
605 | dev_info(&board->dev, "MAC %pM, IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n", | |
606 | dev->dev_addr, dev->irq, | |
607 | (unsigned int)(dev->mem_end - dev->mem_start) >> 10, | |
608 | dev->mem_start, access_bitmode ? 32 : 16); | |
1da177e4 LT |
609 | return 0; |
610 | } | |
611 | ||
612 | static int mac8390_open(struct net_device *dev) | |
613 | { | |
38454db3 FT |
614 | int err; |
615 | ||
8c6270f9 | 616 | __ei_open(dev); |
38454db3 FT |
617 | err = request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev); |
618 | if (err) | |
d92222e2 | 619 | pr_err("%s: unable to get IRQ %d\n", dev->name, dev->irq); |
38454db3 | 620 | return err; |
1da177e4 LT |
621 | } |
622 | ||
623 | static int mac8390_close(struct net_device *dev) | |
624 | { | |
625 | free_irq(dev->irq, dev); | |
8c6270f9 | 626 | __ei_close(dev); |
1da177e4 LT |
627 | return 0; |
628 | } | |
629 | ||
630 | static void mac8390_no_reset(struct net_device *dev) | |
631 | { | |
c45f812f MW |
632 | struct ei_device *ei_local = netdev_priv(dev); |
633 | ||
1da177e4 | 634 | ei_status.txing = 0; |
c45f812f | 635 | netif_info(ei_local, hw, dev, "reset not supported\n"); |
1da177e4 LT |
636 | } |
637 | ||
2964db0f FT |
638 | static void interlan_reset(struct net_device *dev) |
639 | { | |
8e4d9696 | 640 | unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq)); |
c45f812f MW |
641 | struct ei_device *ei_local = netdev_priv(dev); |
642 | ||
643 | netif_info(ei_local, hw, dev, "Need to reset the NS8390 t=%lu...", | |
644 | jiffies); | |
2964db0f FT |
645 | ei_status.txing = 0; |
646 | target[0xC0000] = 0; | |
c45f812f | 647 | if (netif_msg_hw(ei_local)) |
18c00191 | 648 | pr_cont("reset complete\n"); |
2964db0f FT |
649 | } |
650 | ||
1da177e4 LT |
651 | /* dayna_memcpy_fromio/dayna_memcpy_toio */ |
652 | /* directly from daynaport.c by Alan Cox */ | |
8e4d9696 JP |
653 | static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, |
654 | int count) | |
1da177e4 | 655 | { |
09cc07a5 | 656 | volatile unsigned char *ptr; |
8e4d9696 JP |
657 | unsigned char *target = to; |
658 | from <<= 1; /* word, skip overhead */ | |
659 | ptr = (unsigned char *)(dev->mem_start+from); | |
1da177e4 | 660 | /* Leading byte? */ |
8e4d9696 | 661 | if (from & 2) { |
09cc07a5 AV |
662 | *target++ = ptr[-1]; |
663 | ptr += 2; | |
1da177e4 LT |
664 | count--; |
665 | } | |
8e4d9696 | 666 | while (count >= 2) { |
09cc07a5 AV |
667 | *(unsigned short *)target = *(unsigned short volatile *)ptr; |
668 | ptr += 4; /* skip cruft */ | |
669 | target += 2; | |
8e4d9696 | 670 | count -= 2; |
1da177e4 LT |
671 | } |
672 | /* Trailing byte? */ | |
8e4d9696 | 673 | if (count) |
09cc07a5 | 674 | *target = *ptr; |
1da177e4 LT |
675 | } |
676 | ||
8e4d9696 JP |
677 | static void dayna_memcpy_tocard(struct net_device *dev, int to, |
678 | const void *from, int count) | |
1da177e4 LT |
679 | { |
680 | volatile unsigned short *ptr; | |
8e4d9696 JP |
681 | const unsigned char *src = from; |
682 | to <<= 1; /* word, skip overhead */ | |
683 | ptr = (unsigned short *)(dev->mem_start+to); | |
1da177e4 | 684 | /* Leading byte? */ |
8e4d9696 | 685 | if (to & 2) { /* avoid a byte write (stomps on other data) */ |
09cc07a5 | 686 | ptr[-1] = (ptr[-1]&0xFF00)|*src++; |
1da177e4 LT |
687 | ptr++; |
688 | count--; | |
689 | } | |
8e4d9696 JP |
690 | while (count >= 2) { |
691 | *ptr++ = *(unsigned short *)src; /* Copy and */ | |
1da177e4 | 692 | ptr++; /* skip cruft */ |
09cc07a5 | 693 | src += 2; |
8e4d9696 | 694 | count -= 2; |
1da177e4 LT |
695 | } |
696 | /* Trailing byte? */ | |
8e4d9696 | 697 | if (count) { |
1da177e4 | 698 | /* card doesn't like byte writes */ |
8e4d9696 | 699 | *ptr = (*ptr & 0x00FF) | (*src << 8); |
1da177e4 LT |
700 | } |
701 | } | |
702 | ||
703 | /* sane block input/output */ | |
704 | static void sane_get_8390_hdr(struct net_device *dev, | |
705 | struct e8390_pkt_hdr *hdr, int ring_page) | |
706 | { | |
707 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
4042cd75 | 708 | memcpy_fromio(hdr, (void __iomem *)dev->mem_start + hdr_start, 4); |
1da177e4 LT |
709 | /* Fix endianness */ |
710 | hdr->count = swab16(hdr->count); | |
711 | } | |
712 | ||
713 | static void sane_block_input(struct net_device *dev, int count, | |
714 | struct sk_buff *skb, int ring_offset) | |
715 | { | |
716 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
717 | unsigned long xfer_start = xfer_base + dev->mem_start; | |
718 | ||
719 | if (xfer_start + count > ei_status.rmem_end) { | |
720 | /* We must wrap the input move. */ | |
721 | int semi_count = ei_status.rmem_end - xfer_start; | |
4042cd75 GU |
722 | memcpy_fromio(skb->data, |
723 | (void __iomem *)dev->mem_start + xfer_base, | |
8e4d9696 | 724 | semi_count); |
1da177e4 | 725 | count -= semi_count; |
4042cd75 GU |
726 | memcpy_fromio(skb->data + semi_count, |
727 | (void __iomem *)ei_status.rmem_start, count); | |
7e364e96 | 728 | } else { |
4042cd75 GU |
729 | memcpy_fromio(skb->data, |
730 | (void __iomem *)dev->mem_start + xfer_base, | |
731 | count); | |
1da177e4 LT |
732 | } |
733 | } | |
734 | ||
735 | static void sane_block_output(struct net_device *dev, int count, | |
736 | const unsigned char *buf, int start_page) | |
737 | { | |
738 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 739 | |
4042cd75 | 740 | memcpy_toio((void __iomem *)dev->mem_start + shmem, buf, count); |
1da177e4 LT |
741 | } |
742 | ||
743 | /* dayna block input/output */ | |
8e4d9696 JP |
744 | static void dayna_get_8390_hdr(struct net_device *dev, |
745 | struct e8390_pkt_hdr *hdr, int ring_page) | |
1da177e4 LT |
746 | { |
747 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
748 | ||
5c7fffd0 | 749 | dayna_memcpy_fromcard(dev, hdr, hdr_start, 4); |
1da177e4 | 750 | /* Fix endianness */ |
8e4d9696 | 751 | hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8); |
1da177e4 LT |
752 | } |
753 | ||
8e4d9696 JP |
754 | static void dayna_block_input(struct net_device *dev, int count, |
755 | struct sk_buff *skb, int ring_offset) | |
1da177e4 LT |
756 | { |
757 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
758 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
759 | ||
760 | /* Note the offset math is done in card memory space which is word | |
761 | per long onto our space. */ | |
762 | ||
8e4d9696 | 763 | if (xfer_start + count > ei_status.rmem_end) { |
1da177e4 LT |
764 | /* We must wrap the input move. */ |
765 | int semi_count = ei_status.rmem_end - xfer_start; | |
766 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count); | |
767 | count -= semi_count; | |
768 | dayna_memcpy_fromcard(dev, skb->data + semi_count, | |
769 | ei_status.rmem_start - dev->mem_start, | |
770 | count); | |
8e4d9696 | 771 | } else { |
1da177e4 LT |
772 | dayna_memcpy_fromcard(dev, skb->data, xfer_base, count); |
773 | } | |
774 | } | |
775 | ||
8e4d9696 JP |
776 | static void dayna_block_output(struct net_device *dev, int count, |
777 | const unsigned char *buf, | |
778 | int start_page) | |
1da177e4 LT |
779 | { |
780 | long shmem = (start_page - WD_START_PG)<<8; | |
6aa20a22 | 781 | |
1da177e4 LT |
782 | dayna_memcpy_tocard(dev, shmem, buf, count); |
783 | } | |
784 | ||
785 | /* Cabletron block I/O */ | |
8e4d9696 JP |
786 | static void slow_sane_get_8390_hdr(struct net_device *dev, |
787 | struct e8390_pkt_hdr *hdr, | |
788 | int ring_page) | |
1da177e4 LT |
789 | { |
790 | unsigned long hdr_start = (ring_page - WD_START_PG)<<8; | |
7e364e96 | 791 | word_memcpy_fromcard(hdr, dev->mem_start + hdr_start, 4); |
1da177e4 LT |
792 | /* Register endianism - fix here rather than 8390.c */ |
793 | hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8); | |
794 | } | |
795 | ||
8e4d9696 JP |
796 | static void slow_sane_block_input(struct net_device *dev, int count, |
797 | struct sk_buff *skb, int ring_offset) | |
1da177e4 LT |
798 | { |
799 | unsigned long xfer_base = ring_offset - (WD_START_PG<<8); | |
800 | unsigned long xfer_start = xfer_base+dev->mem_start; | |
801 | ||
8e4d9696 | 802 | if (xfer_start + count > ei_status.rmem_end) { |
1da177e4 LT |
803 | /* We must wrap the input move. */ |
804 | int semi_count = ei_status.rmem_end - xfer_start; | |
7e364e96 | 805 | word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, |
5c7fffd0 | 806 | semi_count); |
1da177e4 LT |
807 | count -= semi_count; |
808 | word_memcpy_fromcard(skb->data + semi_count, | |
7e364e96 | 809 | ei_status.rmem_start, count); |
8e4d9696 | 810 | } else { |
7e364e96 GU |
811 | word_memcpy_fromcard(skb->data, dev->mem_start + xfer_base, |
812 | count); | |
1da177e4 LT |
813 | } |
814 | } | |
815 | ||
8e4d9696 JP |
816 | static void slow_sane_block_output(struct net_device *dev, int count, |
817 | const unsigned char *buf, int start_page) | |
1da177e4 LT |
818 | { |
819 | long shmem = (start_page - WD_START_PG)<<8; | |
820 | ||
7e364e96 | 821 | word_memcpy_tocard(dev->mem_start + shmem, buf, count); |
1da177e4 LT |
822 | } |
823 | ||
7e364e96 | 824 | static void word_memcpy_tocard(unsigned long tp, const void *fp, int count) |
1da177e4 | 825 | { |
7e364e96 | 826 | volatile unsigned short *to = (void *)tp; |
1da177e4 LT |
827 | const unsigned short *from = fp; |
828 | ||
829 | count++; | |
8e4d9696 | 830 | count /= 2; |
1da177e4 | 831 | |
8e4d9696 JP |
832 | while (count--) |
833 | *to++ = *from++; | |
1da177e4 LT |
834 | } |
835 | ||
7e364e96 | 836 | static void word_memcpy_fromcard(void *tp, unsigned long fp, int count) |
1da177e4 LT |
837 | { |
838 | unsigned short *to = tp; | |
7e364e96 | 839 | const volatile unsigned short *from = (const void *)fp; |
1da177e4 LT |
840 | |
841 | count++; | |
8e4d9696 | 842 | count /= 2; |
1da177e4 | 843 | |
8e4d9696 JP |
844 | while (count--) |
845 | *to++ = *from++; | |
1da177e4 LT |
846 | } |
847 | ||
6aa20a22 | 848 |