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[mirror_ubuntu-bionic-kernel.git] / drivers / net / mac8390.c
CommitLineData
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>
31#include <linux/slab.h>
32#include <linux/string.h>
33#include <linux/errno.h>
34#include <linux/init.h>
35#include <linux/netdevice.h>
36#include <linux/etherdevice.h>
37#include <linux/skbuff.h>
38#include <linux/bitops.h>
8e4d9696 39#include <linux/io.h>
1da177e4
LT		 40
41#include <asm/system.h>
1da177e4
LT		 42#include <asm/dma.h>
43#include <asm/hwtest.h>
44#include <asm/macints.h>
45
8c6270f9 46static char version[] =
18c00191 47 "v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
8c6270f9
AV		 48
49#define EI_SHIFT(x) (ei_local->reg_offset[x])
8e4d9696
JP		 50#define ei_inb(port) in_8(port)
51#define ei_outb(val, port) out_8(port, val)
52#define ei_inb_p(port) in_8(port)
53#define ei_outb_p(val, port) out_8(port, val)
8c6270f9
AV		 54
55#include "lib8390.c"
1da177e4
LT		 56
57#define WD_START_PG 0x00 /* First page of TX buffer */
58#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
59#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
8e4d9696
JP		 60#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG
61 /* First page of TX buffer */
1da177e4 62
8e4d9696
JP		 63/*
64 * Unfortunately it seems we have to hardcode these for the moment
65 * Shouldn't the card know about this?
66 * Does anyone know where to read it off the card?
67 * Do we trust the data provided by the card?
68 */
1da177e4
LT		 69
70#define DAYNA_8390_BASE 0x80000
71#define DAYNA_8390_MEM 0x00000
72
6aa20a22 73#define CABLETRON_8390_BASE 0x90000
1da177e4
LT		 74#define CABLETRON_8390_MEM 0x00000
75
2964db0f
FT		 76#define INTERLAN_8390_BASE 0xE0000
77#define INTERLAN_8390_MEM 0xD0000
78
1da177e4
LT		 79enum mac8390_type {
80 MAC8390_NONE = -1,
81 MAC8390_APPLE,
82 MAC8390_ASANTE,
2964db0f 83 MAC8390_FARALLON,
1da177e4
LT		 84 MAC8390_CABLETRON,
85 MAC8390_DAYNA,
86 MAC8390_INTERLAN,
87 MAC8390_KINETICS,
1da177e4
LT		 88};
89
8e4d9696 90static const char *cardname[] = {
1da177e4
LT		 91 "apple",
92 "asante",
93 "farallon",
94 "cabletron",
95 "dayna",
96 "interlan",
97 "kinetics",
1da177e4
LT		 98};
99
8e4d9696 100static const int word16[] = {
1da177e4
LT		 101 1, /* apple */
102 1, /* asante */
103 1, /* farallon */
104 1, /* cabletron */
105 0, /* dayna */
106 1, /* interlan */
107 0, /* kinetics */
1da177e4
LT		 108};
109
110/* on which cards do we use NuBus resources? */
8e4d9696 111static const int useresources[] = {
1da177e4
LT		 112 1, /* apple */
113 1, /* asante */
114 1, /* farallon */
115 0, /* cabletron */
116 0, /* dayna */
117 0, /* interlan */
118 0, /* kinetics */
2964db0f
FT		 119};
120
121enum mac8390_access {
122 ACCESS_UNKNOWN = 0,
123 ACCESS_32,
124 ACCESS_16,
1da177e4
LT		 125};
126
8e4d9696
JP		 127extern int mac8390_memtest(struct net_device *dev);
128static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev,
1da177e4
LT		 129 enum mac8390_type type);
130
8e4d9696
JP		 131static int mac8390_open(struct net_device *dev);
132static int mac8390_close(struct net_device *dev);
1da177e4 133static void mac8390_no_reset(struct net_device *dev);
2964db0f 134static void interlan_reset(struct net_device *dev);
1da177e4 135
2964db0f 136/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
1da177e4
LT		 137static void sane_get_8390_hdr(struct net_device *dev,
138 struct e8390_pkt_hdr *hdr, int ring_page);
8e4d9696
JP		 139static void sane_block_input(struct net_device *dev, int count,
140 struct sk_buff *skb, int ring_offset);
141static void sane_block_output(struct net_device *dev, int count,
142 const unsigned char *buf, const int start_page);
1da177e4
LT		 143
144/* dayna_memcpy to and from card */
145static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
146 int from, int count);
147static void dayna_memcpy_tocard(struct net_device *dev, int to,
148 const void *from, int count);
149
150/* Dayna - Dayna/Kinetics use this */
151static void dayna_get_8390_hdr(struct net_device *dev,
152 struct e8390_pkt_hdr *hdr, int ring_page);
153static void dayna_block_input(struct net_device *dev, int count,
154 struct sk_buff *skb, int ring_offset);
155static void dayna_block_output(struct net_device *dev, int count,
156 const unsigned char *buf, int start_page);
157
8e4d9696
JP		 158#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
159#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
1da177e4
LT		 160
161/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
162static void slow_sane_get_8390_hdr(struct net_device *dev,
163 struct e8390_pkt_hdr *hdr, int ring_page);
164static void slow_sane_block_input(struct net_device *dev, int count,
165 struct sk_buff *skb, int ring_offset);
166static void slow_sane_block_output(struct net_device *dev, int count,
167 const unsigned char *buf, int start_page);
168static void word_memcpy_tocard(void *tp, const void *fp, int count);
169static void word_memcpy_fromcard(void *tp, const void *fp, int count);
170
909fa882 171static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
1da177e4 172{
2964db0f 173 switch (dev->dr_sw) {
35076402
JP		 174 case NUBUS_DRSW_3COM:
175 switch (dev->dr_hw) {
176 case NUBUS_DRHW_APPLE_SONIC_NB:
177 case NUBUS_DRHW_APPLE_SONIC_LC:
178 case NUBUS_DRHW_SONNET:
179 return MAC8390_NONE;
2964db0f 180 break;
35076402
JP		 181 default:
182 return MAC8390_APPLE;
2964db0f 183 break;
35076402
JP		 184 }
185 break;
2964db0f 186
35076402
JP		 187 case NUBUS_DRSW_APPLE:
188 switch (dev->dr_hw) {
189 case NUBUS_DRHW_ASANTE_LC:
190 return MAC8390_NONE;
2964db0f 191 break;
35076402
JP		 192 case NUBUS_DRHW_CABLETRON:
193 return MAC8390_CABLETRON;
2964db0f 194 break;
35076402
JP		 195 default:
196 return MAC8390_APPLE;
2964db0f 197 break;
35076402
JP		 198 }
199 break;
2964db0f 200
35076402
JP		 201 case NUBUS_DRSW_ASANTE:
202 return MAC8390_ASANTE;
203 break;
204
205 case NUBUS_DRSW_TECHWORKS:
206 case NUBUS_DRSW_DAYNA2:
207 case NUBUS_DRSW_DAYNA_LC:
208 if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
209 return MAC8390_CABLETRON;
210 else
211 return MAC8390_APPLE;
212 break;
213
214 case NUBUS_DRSW_FARALLON:
215 return MAC8390_FARALLON;
216 break;
2964db0f 217
35076402
JP		 218 case NUBUS_DRSW_KINETICS:
219 switch (dev->dr_hw) {
220 case NUBUS_DRHW_INTERLAN:
221 return MAC8390_INTERLAN;
2964db0f 222 break;
35076402
JP		 223 default:
224 return MAC8390_KINETICS;
225 break;
226 }
227 break;
228
229 case NUBUS_DRSW_DAYNA:
8e4d9696
JP		 230 /*
231 * These correspond to Dayna Sonic cards
232 * which use the macsonic driver
233 */
35076402 234 if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
8e4d9696 235 dev->dr_hw == NUBUS_DRHW_INTERLAN)
35076402
JP		 236 return MAC8390_NONE;
237 else
238 return MAC8390_DAYNA;
239 break;
2964db0f 240 }
1da177e4
LT		 241 return MAC8390_NONE;
242}
243
909fa882 244static enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
2964db0f
FT		 245{
246 unsigned long outdata = 0xA5A0B5B0;
247 unsigned long indata = 0x00000000;
248 /* Try writing 32 bits */
5c7fffd0 249 memcpy(membase, &outdata, 4);
2964db0f
FT		 250 /* Now compare them */
251 if (memcmp((char *)&outdata, (char *)membase, 4) == 0)
252 return ACCESS_32;
253 /* Write 16 bit output */
5c7fffd0 254 word_memcpy_tocard(membase, &outdata, 4);
2964db0f 255 /* Now read it back */
5c7fffd0 256 word_memcpy_fromcard(&indata, membase, 4);
2964db0f
FT		 257 if (outdata == indata)
258 return ACCESS_16;
259 return ACCESS_UNKNOWN;
260}
261
909fa882 262static int __init mac8390_memsize(unsigned long membase)
1da177e4
LT		 263{
264 unsigned long flags;
265 int i, j;
6aa20a22 266
1da177e4
LT		 267 local_irq_save(flags);
268 /* Check up to 32K in 4K increments */
269 for (i = 0; i < 8; i++) {
8e4d9696 270 volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000));
1da177e4
LT		 271
272 /* Unwriteable - we have a fully decoded card and the
273 RAM end located */
274 if (hwreg_present(m) == 0)
275 break;
6aa20a22 276
1da177e4
LT		 277 /* write a distinctive byte */
278 *m = 0xA5A0 | i;
279 /* check that we read back what we wrote */
280 if (*m != (0xA5A0 | i))
281 break;
282
283 /* check for partial decode and wrap */
284 for (j = 0; j < i; j++) {
8e4d9696 285 volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000));
1da177e4
LT		 286 if (*p != (0xA5A0 | j))
287 break;
8e4d9696
JP		 288 }
289 }
1da177e4 290 local_irq_restore(flags);
8e4d9696
JP		 291 /*
292 * in any case, we stopped once we tried one block too many,
293 * or once we reached 32K
294 */
295 return i * 0x1000;
1da177e4
LT		 296}
297
f6de7acc
JP		 298static bool __init mac8390_init(struct net_device *dev, struct nubus_dev *ndev,
299 enum mac8390_type cardtype)
300{
301 struct nubus_dir dir;
302 struct nubus_dirent ent;
303 int offset;
304 volatile unsigned short *i;
305
306 printk_once(KERN_INFO pr_fmt(version));
307
308 dev->irq = SLOT2IRQ(ndev->board->slot);
309 /* This is getting to be a habit */
310 dev->base_addr = (ndev->board->slot_addr |
311 ((ndev->board->slot & 0xf) << 20));
312
313 /*
314 * Get some Nubus info - we will trust the card's idea
315 * of where its memory and registers are.
316 */
317
318 if (nubus_get_func_dir(ndev, &dir) == -1) {
319 pr_err("%s: Unable to get Nubus functional directory for slot %X!\n",
320 dev->name, ndev->board->slot);
321 return false;
322 }
323
324 /* Get the MAC address */
325 if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) {
326 pr_info("%s: Couldn't get MAC address!\n", dev->name);
327 return false;
328 }
329
330 nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
331
332 if (useresources[cardtype] == 1) {
333 nubus_rewinddir(&dir);
334 if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS,
335 &ent) == -1) {
336 pr_err("%s: Memory offset resource for slot %X not found!\n",
337 dev->name, ndev->board->slot);
338 return false;
339 }
340 nubus_get_rsrc_mem(&offset, &ent, 4);
341 dev->mem_start = dev->base_addr + offset;
342 /* yes, this is how the Apple driver does it */
343 dev->base_addr = dev->mem_start + 0x10000;
344 nubus_rewinddir(&dir);
345 if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH,
346 &ent) == -1) {
347 pr_info("%s: Memory length resource for slot %X not found, probing\n",
348 dev->name, ndev->board->slot);
349 offset = mac8390_memsize(dev->mem_start);
350 } else {
351 nubus_get_rsrc_mem(&offset, &ent, 4);
352 }
353 dev->mem_end = dev->mem_start + offset;
354 } else {
355 switch (cardtype) {
356 case MAC8390_KINETICS:
357 case MAC8390_DAYNA: /* it's the same */
358 dev->base_addr = (int)(ndev->board->slot_addr +
359 DAYNA_8390_BASE);
360 dev->mem_start = (int)(ndev->board->slot_addr +
361 DAYNA_8390_MEM);
362 dev->mem_end = dev->mem_start +
363 mac8390_memsize(dev->mem_start);
364 break;
365 case MAC8390_INTERLAN:
366 dev->base_addr = (int)(ndev->board->slot_addr +
367 INTERLAN_8390_BASE);
368 dev->mem_start = (int)(ndev->board->slot_addr +
369 INTERLAN_8390_MEM);
370 dev->mem_end = dev->mem_start +
371 mac8390_memsize(dev->mem_start);
372 break;
373 case MAC8390_CABLETRON:
374 dev->base_addr = (int)(ndev->board->slot_addr +
375 CABLETRON_8390_BASE);
376 dev->mem_start = (int)(ndev->board->slot_addr +
377 CABLETRON_8390_MEM);
378 /* The base address is unreadable if 0x00
379 * has been written to the command register
380 * Reset the chip by writing E8390_NODMA +
381 * E8390_PAGE0 + E8390_STOP just to be
382 * sure
383 */
384 i = (void *)dev->base_addr;
385 *i = 0x21;
386 dev->mem_end = dev->mem_start +
387 mac8390_memsize(dev->mem_start);
388 break;
389
390 default:
391 pr_err("Card type %s is unsupported, sorry\n",
392 ndev->board->name);
393 return false;
394 }
395 }
396
397 return true;
398}
399
1da177e4
LT		 400struct net_device * __init mac8390_probe(int unit)
401{
402 struct net_device *dev;
8e4d9696 403 struct nubus_dev *ndev = NULL;
1da177e4 404 int err = -ENODEV;
6aa20a22 405
1da177e4
LT		 406 static unsigned int slots;
407
408 enum mac8390_type cardtype;
409
410 /* probably should check for Nubus instead */
411
412 if (!MACH_IS_MAC)
413 return ERR_PTR(-ENODEV);
414
217cbfa8 415 dev = ____alloc_ei_netdev(0);
1da177e4
LT		 416 if (!dev)
417 return ERR_PTR(-ENOMEM);
418
419 if (unit >= 0)
420 sprintf(dev->name, "eth%d", unit);
421
8e4d9696
JP		 422 while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET,
423 ndev))) {
1da177e4 424 /* Have we seen it already? */
f6de7acc 425 if (slots & (1 << ndev->board->slot))
1da177e4 426 continue;
f6de7acc 427 slots |= 1 << ndev->board->slot;
1da177e4 428
8e4d9696
JP		 429 cardtype = mac8390_ident(ndev);
430 if (cardtype == MAC8390_NONE)
1da177e4
LT		 431 continue;
432
f6de7acc 433 if (!mac8390_init(dev, ndev, cardtype))
1da177e4 434 continue;
1da177e4
LT		 435
436 /* Do the nasty 8390 stuff */
437 if (!mac8390_initdev(dev, ndev, cardtype))
438 break;
439 }
440
441 if (!ndev)
442 goto out;
443 err = register_netdev(dev);
444 if (err)
445 goto out;
446 return dev;
447
448out:
449 free_netdev(dev);
450 return ERR_PTR(err);
451}
452
453#ifdef MODULE
454MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
455MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
456MODULE_LICENSE("GPL");
457
458/* overkill, of course */
459static struct net_device *dev_mac8390[15];
460int init_module(void)
461{
462 int i;
463 for (i = 0; i < 15; i++) {
464 struct net_device *dev = mac8390_probe(-1);
465 if (IS_ERR(dev))
466 break;
467 dev_mac890[i] = dev;
468 }
469 if (!i) {
18c00191 470 pr_notice("No useable cards found, driver NOT installed.\n");
1da177e4
LT		 471 return -ENODEV;
472 }
473 return 0;
474}
475
476void cleanup_module(void)
477{
478 int i;
479 for (i = 0; i < 15; i++) {
480 struct net_device *dev = dev_mac890[i];
481 if (dev) {
482 unregister_netdev(dev);
483 free_netdev(dev);
484 }
485 }
486}
487
488#endif /* MODULE */
489
ca17584b
SH		 490static const struct net_device_ops mac8390_netdev_ops = {
491 .ndo_open = mac8390_open,
492 .ndo_stop = mac8390_close,
217cbfa8
FT		 493 .ndo_start_xmit = __ei_start_xmit,
494 .ndo_tx_timeout = __ei_tx_timeout,
495 .ndo_get_stats = __ei_get_stats,
496 .ndo_set_multicast_list = __ei_set_multicast_list,
ca17584b 497 .ndo_validate_addr = eth_validate_addr,
fe96aaa1 498 .ndo_set_mac_address = eth_mac_addr,
ca17584b
SH		 499 .ndo_change_mtu = eth_change_mtu,
500#ifdef CONFIG_NET_POLL_CONTROLLER
4e0168fa 501 .ndo_poll_controller = __ei_poll,
ca17584b
SH		 502#endif
503};
504
8e4d9696
JP		 505static int __init mac8390_initdev(struct net_device *dev,
506 struct nubus_dev *ndev,
507 enum mac8390_type type)
1da177e4 508{
8e4d9696 509 static u32 fwrd4_offsets[16] = {
1da177e4
LT		 510 0, 4, 8, 12,
511 16, 20, 24, 28,
512 32, 36, 40, 44,
513 48, 52, 56, 60
514 };
8e4d9696 515 static u32 back4_offsets[16] = {
1da177e4
LT		 516 60, 56, 52, 48,
517 44, 40, 36, 32,
518 28, 24, 20, 16,
519 12, 8, 4, 0
520 };
8e4d9696 521 static u32 fwrd2_offsets[16] = {
1da177e4
LT		 522 0, 2, 4, 6,
523 8, 10, 12, 14,
524 16, 18, 20, 22,
525 24, 26, 28, 30
526 };
527
2964db0f 528 int access_bitmode = 0;
6aa20a22 529
1da177e4 530 /* Now fill in our stuff */
ca17584b 531 dev->netdev_ops = &mac8390_netdev_ops;
1da177e4
LT		 532
533 /* GAR, ei_status is actually a macro even though it looks global */
534 ei_status.name = cardname[type];
535 ei_status.word16 = word16[type];
536
537 /* Cabletron's TX/RX buffers are backwards */
538 if (type == MAC8390_CABLETRON) {
8e4d9696
JP		 539 ei_status.tx_start_page = CABLETRON_TX_START_PG;
540 ei_status.rx_start_page = CABLETRON_RX_START_PG;
541 ei_status.stop_page = CABLETRON_RX_STOP_PG;
542 ei_status.rmem_start = dev->mem_start;
543 ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
1da177e4 544 } else {
8e4d9696
JP		 545 ei_status.tx_start_page = WD_START_PG;
546 ei_status.rx_start_page = WD_START_PG + TX_PAGES;
547 ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
548 ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
549 ei_status.rmem_end = dev->mem_end;
1da177e4 550 }
6aa20a22 551
1da177e4 552 /* Fill in model-specific information and functions */
35076402 553 switch (type) {
1da177e4
LT		 554 case MAC8390_FARALLON:
555 case MAC8390_APPLE:
35076402
JP		 556 switch (mac8390_testio(dev->mem_start)) {
557 case ACCESS_UNKNOWN:
18c00191 558 pr_info("Don't know how to access card memory!\n");
35076402
JP		 559 return -ENODEV;
560 break;
2964db0f 561
35076402
JP		 562 case ACCESS_16:
563 /* 16 bit card, register map is reversed */
564 ei_status.reset_8390 = &mac8390_no_reset;
565 ei_status.block_input = &slow_sane_block_input;
566 ei_status.block_output = &slow_sane_block_output;
567 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
568 ei_status.reg_offset = back4_offsets;
569 break;
2964db0f 570
35076402
JP		 571 case ACCESS_32:
572 /* 32 bit card, register map is reversed */
573 ei_status.reset_8390 = &mac8390_no_reset;
574 ei_status.block_input = &sane_block_input;
575 ei_status.block_output = &sane_block_output;
576 ei_status.get_8390_hdr = &sane_get_8390_hdr;
577 ei_status.reg_offset = back4_offsets;
578 access_bitmode = 1;
579 break;
2964db0f
FT		 580 }
581 break;
582
1da177e4 583 case MAC8390_ASANTE:
2964db0f
FT		 584 /* Some Asante cards pass the 32 bit test
585 * but overwrite system memory when run at 32 bit.
586 * so we run them all at 16 bit.
587 */
1da177e4 588 ei_status.reset_8390 = &mac8390_no_reset;
2964db0f
FT		 589 ei_status.block_input = &slow_sane_block_input;
590 ei_status.block_output = &slow_sane_block_output;
591 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
1da177e4 592 ei_status.reg_offset = back4_offsets;
1da177e4 593 break;
2964db0f 594
1da177e4
LT		 595 case MAC8390_CABLETRON:
596 /* 16 bit card, register map is short forward */
597 ei_status.reset_8390 = &mac8390_no_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;
601 ei_status.reg_offset = fwrd2_offsets;
1da177e4 602 break;
2964db0f 603
1da177e4
LT		 604 case MAC8390_DAYNA:
605 case MAC8390_KINETICS:
2964db0f 606 /* 16 bit memory, register map is forward */
1da177e4
LT		 607 /* dayna and similar */
608 ei_status.reset_8390 = &mac8390_no_reset;
609 ei_status.block_input = &dayna_block_input;
610 ei_status.block_output = &dayna_block_output;
611 ei_status.get_8390_hdr = &dayna_get_8390_hdr;
612 ei_status.reg_offset = fwrd4_offsets;
1da177e4 613 break;
2964db0f
FT		 614
615 case MAC8390_INTERLAN:
616 /* 16 bit memory, register map is forward */
617 ei_status.reset_8390 = &interlan_reset;
618 ei_status.block_input = &slow_sane_block_input;
619 ei_status.block_output = &slow_sane_block_output;
620 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
8e4d9696
JP		 621 ei_status.reg_offset = fwrd4_offsets;
622 break;
2964db0f 623
1da177e4 624 default:
18c00191
JP		 625 pr_err("Card type %s is unsupported, sorry\n",
626 ndev->board->name);
1da177e4
LT		 627 return -ENODEV;
628 }
6aa20a22 629
8c6270f9 630 __NS8390_init(dev, 0);
1da177e4
LT		 631
632 /* Good, done, now spit out some messages */
18c00191
JP		 633 pr_info("%s: %s in slot %X (type %s)\n",
634 dev->name, ndev->board->name, ndev->board->slot,
635 cardname[type]);
636 pr_info("MAC %pM IRQ %d, %d KB shared memory at %#lx, %d-bit access.\n",
637 dev->dev_addr, dev->irq,
638 (unsigned int)(dev->mem_end - dev->mem_start) >> 10,
639 dev->mem_start, access_bitmode ? 32 : 16);
1da177e4
LT		 640 return 0;
641}
642
643static int mac8390_open(struct net_device *dev)
644{
8c6270f9
AV		 645 __ei_open(dev);
646 if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
18c00191 647 pr_info("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
1da177e4 648 return -EAGAIN;
6aa20a22 649 }
1da177e4
LT		 650 return 0;
651}
652
653static int mac8390_close(struct net_device *dev)
654{
655 free_irq(dev->irq, dev);
8c6270f9 656 __ei_close(dev);
1da177e4
LT		 657 return 0;
658}
659
660static void mac8390_no_reset(struct net_device *dev)
661{
662 ei_status.txing = 0;
663 if (ei_debug > 1)
18c00191 664 pr_info("reset not supported\n");
1da177e4
LT		 665 return;
666}
667
2964db0f
FT		 668static void interlan_reset(struct net_device *dev)
669{
8e4d9696 670 unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq));
2964db0f 671 if (ei_debug > 1)
18c00191 672 pr_info("Need to reset the NS8390 t=%lu...", jiffies);
2964db0f
FT		 673 ei_status.txing = 0;
674 target[0xC0000] = 0;
675 if (ei_debug > 1)
18c00191 676 pr_cont("reset complete\n");
2964db0f
FT		 677 return;
678}
679
1da177e4
LT		 680/* dayna_memcpy_fromio/dayna_memcpy_toio */
681/* directly from daynaport.c by Alan Cox */
8e4d9696
JP		 682static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from,
683 int count)
1da177e4 684{
09cc07a5 685 volatile unsigned char *ptr;
8e4d9696
JP		 686 unsigned char *target = to;
687 from <<= 1; /* word, skip overhead */
688 ptr = (unsigned char *)(dev->mem_start+from);
1da177e4 689 /* Leading byte? */
8e4d9696 690 if (from & 2) {
09cc07a5
AV		 691 *target++ = ptr[-1];
692 ptr += 2;
1da177e4
LT		 693 count--;
694 }
8e4d9696 695 while (count >= 2) {
09cc07a5
AV		 696 *(unsigned short *)target = *(unsigned short volatile *)ptr;
697 ptr += 4; /* skip cruft */
698 target += 2;
8e4d9696 699 count -= 2;
1da177e4
LT		 700 }
701 /* Trailing byte? */
8e4d9696 702 if (count)
09cc07a5 703 *target = *ptr;
1da177e4
LT		 704}
705
8e4d9696
JP		 706static void dayna_memcpy_tocard(struct net_device *dev, int to,
707 const void *from, int count)
1da177e4
LT		 708{
709 volatile unsigned short *ptr;
8e4d9696
JP		 710 const unsigned char *src = from;
711 to <<= 1; /* word, skip overhead */
712 ptr = (unsigned short *)(dev->mem_start+to);
1da177e4 713 /* Leading byte? */
8e4d9696 714 if (to & 2) { /* avoid a byte write (stomps on other data) */
09cc07a5 715 ptr[-1] = (ptr[-1]&0xFF00)|*src++;
1da177e4
LT		 716 ptr++;
717 count--;
718 }
8e4d9696
JP		 719 while (count >= 2) {
720 *ptr++ = *(unsigned short *)src; /* Copy and */
1da177e4 721 ptr++; /* skip cruft */
09cc07a5 722 src += 2;
8e4d9696 723 count -= 2;
1da177e4
LT		 724 }
725 /* Trailing byte? */
8e4d9696 726 if (count) {
1da177e4 727 /* card doesn't like byte writes */
8e4d9696 728 *ptr = (*ptr & 0x00FF) | (*src << 8);
1da177e4
LT		 729 }
730}
731
732/* sane block input/output */
733static void sane_get_8390_hdr(struct net_device *dev,
734 struct e8390_pkt_hdr *hdr, int ring_page)
735{
736 unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
737 memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
738 /* Fix endianness */
739 hdr->count = swab16(hdr->count);
740}
741
742static void sane_block_input(struct net_device *dev, int count,
743 struct sk_buff *skb, int ring_offset)
744{
745 unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
746 unsigned long xfer_start = xfer_base + dev->mem_start;
747
748 if (xfer_start + count > ei_status.rmem_end) {
749 /* We must wrap the input move. */
750 int semi_count = ei_status.rmem_end - xfer_start;
8e4d9696
JP		 751 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base,
752 semi_count);
1da177e4 753 count -= semi_count;
8e4d9696
JP		 754 memcpy_toio(skb->data + semi_count,
755 (char *)ei_status.rmem_start, count);
1da177e4 756 } else {
8e4d9696
JP		 757 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base,
758 count);
1da177e4
LT		 759 }
760}
761
762static void sane_block_output(struct net_device *dev, int count,
763 const unsigned char *buf, int start_page)
764{
765 long shmem = (start_page - WD_START_PG)<<8;
6aa20a22 766
1da177e4
LT		 767 memcpy_toio((char *)dev->mem_start + shmem, buf, count);
768}
769
770/* dayna block input/output */
8e4d9696
JP		 771static void dayna_get_8390_hdr(struct net_device *dev,
772 struct e8390_pkt_hdr *hdr, int ring_page)
1da177e4
LT		 773{
774 unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
775
5c7fffd0 776 dayna_memcpy_fromcard(dev, hdr, hdr_start, 4);
1da177e4 777 /* Fix endianness */
8e4d9696 778 hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8);
1da177e4
LT		 779}
780
8e4d9696
JP		 781static void dayna_block_input(struct net_device *dev, int count,
782 struct sk_buff *skb, int ring_offset)
1da177e4
LT		 783{
784 unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
785 unsigned long xfer_start = xfer_base+dev->mem_start;
786
787 /* Note the offset math is done in card memory space which is word
788 per long onto our space. */
789
8e4d9696 790 if (xfer_start + count > ei_status.rmem_end) {
1da177e4
LT		 791 /* We must wrap the input move. */
792 int semi_count = ei_status.rmem_end - xfer_start;
793 dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
794 count -= semi_count;
795 dayna_memcpy_fromcard(dev, skb->data + semi_count,
796 ei_status.rmem_start - dev->mem_start,
797 count);
8e4d9696 798 } else {
1da177e4
LT		 799 dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
800 }
801}
802
8e4d9696
JP		 803static void dayna_block_output(struct net_device *dev, int count,
804 const unsigned char *buf,
805 int start_page)
1da177e4
LT		 806{
807 long shmem = (start_page - WD_START_PG)<<8;
6aa20a22 808
1da177e4
LT		 809 dayna_memcpy_tocard(dev, shmem, buf, count);
810}
811
812/* Cabletron block I/O */
8e4d9696
JP		 813static void slow_sane_get_8390_hdr(struct net_device *dev,
814 struct e8390_pkt_hdr *hdr,
815 int ring_page)
1da177e4
LT		 816{
817 unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
5c7fffd0 818 word_memcpy_fromcard(hdr, (char *)dev->mem_start + hdr_start, 4);
1da177e4
LT		 819 /* Register endianism - fix here rather than 8390.c */
820 hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
821}
822
8e4d9696
JP		 823static void slow_sane_block_input(struct net_device *dev, int count,
824 struct sk_buff *skb, int ring_offset)
1da177e4
LT		 825{
826 unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
827 unsigned long xfer_start = xfer_base+dev->mem_start;
828
8e4d9696 829 if (xfer_start + count > ei_status.rmem_end) {
1da177e4
LT		 830 /* We must wrap the input move. */
831 int semi_count = ei_status.rmem_end - xfer_start;
5c7fffd0
JP		 832 word_memcpy_fromcard(skb->data,
833 (char *)dev->mem_start + xfer_base,
834 semi_count);
1da177e4
LT		 835 count -= semi_count;
836 word_memcpy_fromcard(skb->data + semi_count,
837 (char *)ei_status.rmem_start, count);
8e4d9696 838 } else {
5c7fffd0
JP		 839 word_memcpy_fromcard(skb->data,
840 (char *)dev->mem_start + xfer_base, count);
1da177e4
LT		 841 }
842}
843
8e4d9696
JP		 844static void slow_sane_block_output(struct net_device *dev, int count,
845 const unsigned char *buf, int start_page)
1da177e4
LT		 846{
847 long shmem = (start_page - WD_START_PG)<<8;
848
849 word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
850}
851
852static void word_memcpy_tocard(void *tp, const void *fp, int count)
853{
854 volatile unsigned short *to = tp;
855 const unsigned short *from = fp;
856
857 count++;
8e4d9696 858 count /= 2;
1da177e4 859
8e4d9696
JP		 860 while (count--)
861 *to++ = *from++;
1da177e4
LT		 862}
863
864static void word_memcpy_fromcard(void *tp, const void *fp, int count)
865{
866 unsigned short *to = tp;
867 const volatile unsigned short *from = fp;
868
869 count++;
8e4d9696 870 count /= 2;
1da177e4 871
8e4d9696
JP		 872 while (count--)
873 *to++ = *from++;
1da177e4
LT		 874}
875
6aa20a22 876
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