iwlwifi: replace IWL_ERROR with IWL_ERR
[linux-2.6.git] / drivers / net / mac8390.c
1 /* mac8390.c: New driver for 8390-based Nubus (or Nubus-alike)
2    Ethernet cards on Linux */
3 /* Based on the former daynaport.c driver, by Alan Cox.  Some code
4    taken from or inspired by skeleton.c by Donald Becker, acenic.c by
5    Jes Sorensen, and ne2k-pci.c by Donald Becker and Paul Gortmaker.
6
7    This software may be used and distributed according to the terms of
8    the GNU Public License, incorporated herein by reference.  */
9
10 /* 2000-02-28: support added for Dayna and Kinetics cards by
11    A.G.deWijn@phys.uu.nl */
12 /* 2000-04-04: support added for Dayna2 by bart@etpmod.phys.tue.nl */
13 /* 2001-04-18: support for DaynaPort E/LC-M by rayk@knightsmanor.org */
14 /* 2001-05-15: support for Cabletron ported from old daynaport driver
15  * and fixed access to Sonic Sys card which masquerades as a Farallon
16  * by rayk@knightsmanor.org */
17 /* 2002-12-30: Try to support more cards, some clues from NetBSD driver */
18 /* 2003-12-26: Make sure Asante cards always work. */
19
20 #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>
29 #include <linux/slab.h>
30 #include <linux/string.h>
31 #include <linux/errno.h>
32 #include <linux/init.h>
33 #include <linux/netdevice.h>
34 #include <linux/etherdevice.h>
35 #include <linux/skbuff.h>
36 #include <linux/bitops.h>
37
38 #include <asm/system.h>
39 #include <asm/io.h>
40 #include <asm/dma.h>
41 #include <asm/hwtest.h>
42 #include <asm/macints.h>
43
44 static char version[] =
45         "mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
46
47 #define EI_SHIFT(x)     (ei_local->reg_offset[x])
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)
52
53 #include "lib8390.c"
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 */
58 #define CABLETRON_TX_START_PG           CABLETRON_RX_STOP_PG  /* First page of TX buffer */
59
60 /* Unfortunately it seems we have to hardcode these for the moment */
61 /* Shouldn't the card know about this? Does anyone know where to read it off the card? Do we trust the data provided by the card? */
62
63 #define DAYNA_8390_BASE         0x80000
64 #define DAYNA_8390_MEM          0x00000
65
66 #define CABLETRON_8390_BASE     0x90000
67 #define CABLETRON_8390_MEM      0x00000
68
69 #define INTERLAN_8390_BASE      0xE0000
70 #define INTERLAN_8390_MEM       0xD0000
71
72 enum mac8390_type {
73         MAC8390_NONE = -1,
74         MAC8390_APPLE,
75         MAC8390_ASANTE,
76         MAC8390_FARALLON,
77         MAC8390_CABLETRON,
78         MAC8390_DAYNA,
79         MAC8390_INTERLAN,
80         MAC8390_KINETICS,
81 };
82
83 static const char * cardname[] = {
84         "apple",
85         "asante",
86         "farallon",
87         "cabletron",
88         "dayna",
89         "interlan",
90         "kinetics",
91 };
92
93 static int word16[] = {
94         1, /* apple */
95         1, /* asante */
96         1, /* farallon */
97         1, /* cabletron */
98         0, /* dayna */
99         1, /* interlan */
100         0, /* kinetics */
101 };
102
103 /* on which cards do we use NuBus resources? */
104 static int useresources[] = {
105         1, /* apple */
106         1, /* asante */
107         1, /* farallon */
108         0, /* cabletron */
109         0, /* dayna */
110         0, /* interlan */
111         0, /* kinetics */
112 };
113
114 enum mac8390_access {
115         ACCESS_UNKNOWN = 0,
116         ACCESS_32,
117         ACCESS_16,
118 };
119
120 extern int mac8390_memtest(struct net_device * dev);
121 static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
122                            enum mac8390_type type);
123
124 static int mac8390_open(struct net_device * dev);
125 static int mac8390_close(struct net_device * dev);
126 static void mac8390_no_reset(struct net_device *dev);
127 static void interlan_reset(struct net_device *dev);
128
129 /* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
130 static void sane_get_8390_hdr(struct net_device *dev,
131                               struct e8390_pkt_hdr *hdr, int ring_page);
132 static void sane_block_input(struct net_device * dev, int count,
133                              struct sk_buff * skb, int ring_offset);
134 static void sane_block_output(struct net_device * dev, int count,
135                               const unsigned char * buf, const int start_page);
136
137 /* dayna_memcpy to and from card */
138 static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
139                                 int from, int count);
140 static void dayna_memcpy_tocard(struct net_device *dev, int to,
141                               const void *from, int count);
142
143 /* Dayna - Dayna/Kinetics use this */
144 static void dayna_get_8390_hdr(struct net_device *dev,
145                                struct e8390_pkt_hdr *hdr, int ring_page);
146 static void dayna_block_input(struct net_device *dev, int count,
147                               struct sk_buff *skb, int ring_offset);
148 static void dayna_block_output(struct net_device *dev, int count,
149                                const unsigned char *buf, int start_page);
150
151 #define memcpy_fromio(a,b,c)    memcpy((a),(void *)(b),(c))
152 #define memcpy_toio(a,b,c)      memcpy((void *)(a),(b),(c))
153
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);
161 static void word_memcpy_tocard(void *tp, const void *fp, int count);
162 static void word_memcpy_fromcard(void *tp, const void *fp, int count);
163
164 static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
165 {
166         switch (dev->dr_sw) {
167                 case NUBUS_DRSW_3COM:
168                         switch (dev->dr_hw) {
169                                 case NUBUS_DRHW_APPLE_SONIC_NB:
170                                 case NUBUS_DRHW_APPLE_SONIC_LC:
171                                 case NUBUS_DRHW_SONNET:
172                                         return MAC8390_NONE;
173                                         break;
174                                 default:
175                                         return MAC8390_APPLE;
176                                         break;
177                         }
178                         break;
179
180                 case NUBUS_DRSW_APPLE:
181                         switch (dev->dr_hw) {
182                                 case NUBUS_DRHW_ASANTE_LC:
183                                         return MAC8390_NONE;
184                                         break;
185                                 case NUBUS_DRHW_CABLETRON:
186                                         return MAC8390_CABLETRON;
187                                         break;
188                                 default:
189                                         return MAC8390_APPLE;
190                                         break;
191                         }
192                         break;
193
194                 case NUBUS_DRSW_ASANTE:
195                         return MAC8390_ASANTE;
196                         break;
197
198                 case NUBUS_DRSW_TECHWORKS:
199                 case NUBUS_DRSW_DAYNA2:
200                 case NUBUS_DRSW_DAYNA_LC:
201                         if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
202                                 return MAC8390_CABLETRON;
203                         else
204                                 return MAC8390_APPLE;
205                         break;
206
207                 case NUBUS_DRSW_FARALLON:
208                         return MAC8390_FARALLON;
209                         break;
210
211                 case NUBUS_DRSW_KINETICS:
212                         switch (dev->dr_hw) {
213                                 case NUBUS_DRHW_INTERLAN:
214                                         return MAC8390_INTERLAN;
215                                         break;
216                                 default:
217                                         return MAC8390_KINETICS;
218                                         break;
219                         }
220                         break;
221
222                 case NUBUS_DRSW_DAYNA:
223                         // These correspond to Dayna Sonic cards
224                         // which use the macsonic driver
225                         if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
226                                 dev->dr_hw == NUBUS_DRHW_INTERLAN )
227                                 return MAC8390_NONE;
228                         else
229                                 return MAC8390_DAYNA;
230                         break;
231         }
232         return MAC8390_NONE;
233 }
234
235 static enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
236 {
237         unsigned long outdata = 0xA5A0B5B0;
238         unsigned long indata =  0x00000000;
239         /* Try writing 32 bits */
240         memcpy((char *)membase, (char *)&outdata, 4);
241         /* Now compare them */
242         if (memcmp((char *)&outdata, (char *)membase, 4) == 0)
243                 return ACCESS_32;
244         /* Write 16 bit output */
245         word_memcpy_tocard((char *)membase, (char *)&outdata, 4);
246         /* Now read it back */
247         word_memcpy_fromcard((char *)&indata, (char *)membase, 4);
248         if (outdata == indata)
249                 return ACCESS_16;
250         return ACCESS_UNKNOWN;
251 }
252
253 static int __init mac8390_memsize(unsigned long membase)
254 {
255         unsigned long flags;
256         int i, j;
257
258         local_irq_save(flags);
259         /* Check up to 32K in 4K increments */
260         for (i = 0; i < 8; i++) {
261                 volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
262
263                 /* Unwriteable - we have a fully decoded card and the
264                    RAM end located */
265                 if (hwreg_present(m) == 0)
266                         break;
267
268                 /* write a distinctive byte */
269                 *m = 0xA5A0 | i;
270                 /* check that we read back what we wrote */
271                 if (*m != (0xA5A0 | i))
272                         break;
273
274                 /* check for partial decode and wrap */
275                 for (j = 0; j < i; j++) {
276                         volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
277                         if (*p != (0xA5A0 | j))
278                                 break;
279                 }
280         }
281         local_irq_restore(flags);
282         /* in any case, we stopped once we tried one block too many,
283            or once we reached 32K */
284         return i * 0x1000;
285 }
286
287 struct net_device * __init mac8390_probe(int unit)
288 {
289         struct net_device *dev;
290         volatile unsigned short *i;
291         int version_disp = 0;
292         struct nubus_dev * ndev = NULL;
293         int err = -ENODEV;
294
295         struct nubus_dir dir;
296         struct nubus_dirent ent;
297         int offset;
298         static unsigned int slots;
299
300         enum mac8390_type cardtype;
301
302         /* probably should check for Nubus instead */
303
304         if (!MACH_IS_MAC)
305                 return ERR_PTR(-ENODEV);
306
307         dev = alloc_ei_netdev();
308         if (!dev)
309                 return ERR_PTR(-ENOMEM);
310
311         if (unit >= 0)
312                 sprintf(dev->name, "eth%d", unit);
313
314         while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
315                 /* Have we seen it already? */
316                 if (slots & (1<<ndev->board->slot))
317                         continue;
318                 slots |= 1<<ndev->board->slot;
319
320                 if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
321                         continue;
322
323                 if (version_disp == 0) {
324                         version_disp = 1;
325                         printk(version);
326                 }
327
328                 dev->irq = SLOT2IRQ(ndev->board->slot);
329                 /* This is getting to be a habit */
330                 dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
331
332                 /* Get some Nubus info - we will trust the card's idea
333                    of where its memory and registers are. */
334
335                 if (nubus_get_func_dir(ndev, &dir) == -1) {
336                         printk(KERN_ERR "%s: Unable to get Nubus functional"
337                                         " directory for slot %X!\n",
338                                dev->name, ndev->board->slot);
339                         continue;
340                 }
341
342                 /* Get the MAC address */
343                 if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
344                         printk(KERN_INFO "%s: Couldn't get MAC address!\n",
345                                         dev->name);
346                         continue;
347                 } else {
348                         nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
349                 }
350
351                 if (useresources[cardtype] == 1) {
352                         nubus_rewinddir(&dir);
353                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
354                                 printk(KERN_ERR "%s: Memory offset resource"
355                                                 " for slot %X not found!\n",
356                                        dev->name, ndev->board->slot);
357                                 continue;
358                         }
359                         nubus_get_rsrc_mem(&offset, &ent, 4);
360                         dev->mem_start = dev->base_addr + offset;
361                         /* yes, this is how the Apple driver does it */
362                         dev->base_addr = dev->mem_start + 0x10000;
363                         nubus_rewinddir(&dir);
364                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
365                                 printk(KERN_INFO "%s: Memory length resource"
366                                                  " for slot %X not found"
367                                                  ", probing\n",
368                                        dev->name, ndev->board->slot);
369                                 offset = mac8390_memsize(dev->mem_start);
370                                 } else {
371                                         nubus_get_rsrc_mem(&offset, &ent, 4);
372                                 }
373                         dev->mem_end = dev->mem_start + offset;
374                 } else {
375                         switch (cardtype) {
376                                 case MAC8390_KINETICS:
377                                 case MAC8390_DAYNA: /* it's the same */
378                                         dev->base_addr =
379                                                 (int)(ndev->board->slot_addr +
380                                                 DAYNA_8390_BASE);
381                                         dev->mem_start =
382                                                 (int)(ndev->board->slot_addr +
383                                                 DAYNA_8390_MEM);
384                                         dev->mem_end =
385                                                 dev->mem_start +
386                                                 mac8390_memsize(dev->mem_start);
387                                         break;
388                                 case MAC8390_INTERLAN:
389                                         dev->base_addr =
390                                                 (int)(ndev->board->slot_addr +
391                                                 INTERLAN_8390_BASE);
392                                         dev->mem_start =
393                                                 (int)(ndev->board->slot_addr +
394                                                 INTERLAN_8390_MEM);
395                                         dev->mem_end =
396                                                 dev->mem_start +
397                                                 mac8390_memsize(dev->mem_start);
398                                         break;
399                                 case MAC8390_CABLETRON:
400                                         dev->base_addr =
401                                                 (int)(ndev->board->slot_addr +
402                                                 CABLETRON_8390_BASE);
403                                         dev->mem_start =
404                                                 (int)(ndev->board->slot_addr +
405                                                 CABLETRON_8390_MEM);
406                                         /* The base address is unreadable if 0x00
407                                          * has been written to the command register
408                                          * Reset the chip by writing E8390_NODMA +
409                                          *   E8390_PAGE0 + E8390_STOP just to be
410                                          *   sure
411                                          */
412                                         i = (void *)dev->base_addr;
413                                         *i = 0x21;
414                                         dev->mem_end =
415                                                 dev->mem_start +
416                                                 mac8390_memsize(dev->mem_start);
417                                         break;
418
419                                 default:
420                                         printk(KERN_ERR "Card type %s is"
421                                                " unsupported, sorry\n",
422                                                ndev->board->name);
423                                         continue;
424                         }
425                 }
426
427                 /* Do the nasty 8390 stuff */
428                 if (!mac8390_initdev(dev, ndev, cardtype))
429                         break;
430         }
431
432         if (!ndev)
433                 goto out;
434         err = register_netdev(dev);
435         if (err)
436                 goto out;
437         return dev;
438
439 out:
440         free_netdev(dev);
441         return ERR_PTR(err);
442 }
443
444 #ifdef MODULE
445 MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
446 MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
447 MODULE_LICENSE("GPL");
448
449 /* overkill, of course */
450 static struct net_device *dev_mac8390[15];
451 int init_module(void)
452 {
453         int i;
454         for (i = 0; i < 15; i++) {
455                 struct net_device *dev = mac8390_probe(-1);
456                 if (IS_ERR(dev))
457                         break;
458                 dev_mac890[i] = dev;
459         }
460         if (!i) {
461                 printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
462                 return -ENODEV;
463         }
464         return 0;
465 }
466
467 void cleanup_module(void)
468 {
469         int i;
470         for (i = 0; i < 15; i++) {
471                 struct net_device *dev = dev_mac890[i];
472                 if (dev) {
473                         unregister_netdev(dev);
474                         free_netdev(dev);
475                 }
476         }
477 }
478
479 #endif /* MODULE */
480
481 static const struct net_device_ops mac8390_netdev_ops = {
482         .ndo_open               = mac8390_open,
483         .ndo_stop               = mac8390_close,
484         .ndo_start_xmit         = ei_start_xmit,
485         .ndo_tx_timeout         = ei_tx_timeout,
486         .ndo_get_stats          = ei_get_stats,
487         .ndo_set_multicast_list = ei_set_multicast_list,
488         .ndo_validate_addr      = eth_validate_addr,
489         .ndo_set_mac_address    = eth_mac_addr,
490         .ndo_change_mtu         = eth_change_mtu,
491 #ifdef CONFIG_NET_POLL_CONTROLLER
492         .ndo_poll_controller    = ei_poll,
493 #endif
494 };
495
496 static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
497                             enum mac8390_type type)
498 {
499         static u32 fwrd4_offsets[16]={
500                 0,      4,      8,      12,
501                 16,     20,     24,     28,
502                 32,     36,     40,     44,
503                 48,     52,     56,     60
504         };
505         static u32 back4_offsets[16]={
506                 60,     56,     52,     48,
507                 44,     40,     36,     32,
508                 28,     24,     20,     16,
509                 12,     8,      4,      0
510         };
511         static u32 fwrd2_offsets[16]={
512                 0,      2,      4,      6,
513                 8,     10,     12,     14,
514                 16,    18,     20,     22,
515                 24,    26,     28,     30
516         };
517
518         int access_bitmode = 0;
519
520         /* Now fill in our stuff */
521         dev->netdev_ops = &mac8390_netdev_ops;
522
523         /* GAR, ei_status is actually a macro even though it looks global */
524         ei_status.name = cardname[type];
525         ei_status.word16 = word16[type];
526
527         /* Cabletron's TX/RX buffers are backwards */
528         if (type == MAC8390_CABLETRON) {
529                ei_status.tx_start_page = CABLETRON_TX_START_PG;
530                ei_status.rx_start_page = CABLETRON_RX_START_PG;
531                ei_status.stop_page = CABLETRON_RX_STOP_PG;
532                ei_status.rmem_start = dev->mem_start;
533                ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
534         } else {
535                ei_status.tx_start_page = WD_START_PG;
536                ei_status.rx_start_page = WD_START_PG + TX_PAGES;
537                ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
538                ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
539                ei_status.rmem_end = dev->mem_end;
540         }
541
542         /* Fill in model-specific information and functions */
543         switch(type) {
544         case MAC8390_FARALLON:
545         case MAC8390_APPLE:
546                 switch(mac8390_testio(dev->mem_start)) {
547                         case ACCESS_UNKNOWN:
548                                 printk("Don't know how to access card memory!\n");
549                                 return -ENODEV;
550                                 break;
551
552                         case ACCESS_16:
553                                 /* 16 bit card, register map is reversed */
554                                 ei_status.reset_8390 = &mac8390_no_reset;
555                                 ei_status.block_input = &slow_sane_block_input;
556                                 ei_status.block_output = &slow_sane_block_output;
557                                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
558                                 ei_status.reg_offset = back4_offsets;
559                                 break;
560
561                         case ACCESS_32:
562                                 /* 32 bit card, register map is reversed */
563                                 ei_status.reset_8390 = &mac8390_no_reset;
564                                 ei_status.block_input = &sane_block_input;
565                                 ei_status.block_output = &sane_block_output;
566                                 ei_status.get_8390_hdr = &sane_get_8390_hdr;
567                                 ei_status.reg_offset = back4_offsets;
568                                 access_bitmode = 1;
569                                 break;
570                 }
571                 break;
572
573         case MAC8390_ASANTE:
574                 /* Some Asante cards pass the 32 bit test
575                  * but overwrite system memory when run at 32 bit.
576                  * so we run them all at 16 bit.
577                  */
578                 ei_status.reset_8390 = &mac8390_no_reset;
579                 ei_status.block_input = &slow_sane_block_input;
580                 ei_status.block_output = &slow_sane_block_output;
581                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
582                 ei_status.reg_offset = back4_offsets;
583                 break;
584
585         case MAC8390_CABLETRON:
586                 /* 16 bit card, register map is short forward */
587                 ei_status.reset_8390 = &mac8390_no_reset;
588                 ei_status.block_input = &slow_sane_block_input;
589                 ei_status.block_output = &slow_sane_block_output;
590                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
591                 ei_status.reg_offset = fwrd2_offsets;
592                 break;
593
594         case MAC8390_DAYNA:
595         case MAC8390_KINETICS:
596                 /* 16 bit memory, register map is forward */
597                 /* dayna and similar */
598                 ei_status.reset_8390 = &mac8390_no_reset;
599                 ei_status.block_input = &dayna_block_input;
600                 ei_status.block_output = &dayna_block_output;
601                 ei_status.get_8390_hdr = &dayna_get_8390_hdr;
602                 ei_status.reg_offset = fwrd4_offsets;
603                 break;
604
605         case MAC8390_INTERLAN:
606                 /* 16 bit memory, register map is forward */
607                 ei_status.reset_8390 = &interlan_reset;
608                 ei_status.block_input = &slow_sane_block_input;
609                 ei_status.block_output = &slow_sane_block_output;
610                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
611                 ei_status.reg_offset = fwrd4_offsets;
612                 break;
613
614         default:
615                 printk(KERN_ERR "Card type %s is unsupported, sorry\n", ndev->board->name);
616                 return -ENODEV;
617         }
618
619         __NS8390_init(dev, 0);
620
621         /* Good, done, now spit out some messages */
622         printk(KERN_INFO "%s: %s in slot %X (type %s)\n",
623                    dev->name, ndev->board->name, ndev->board->slot, cardname[type]);
624         printk(KERN_INFO "MAC ");
625         {
626                 int i;
627                 for (i = 0; i < 6; i++) {
628                         printk("%2.2x", dev->dev_addr[i]);
629                         if (i < 5)
630                                 printk(":");
631                 }
632         }
633         printk(" IRQ %d, %d KB shared memory at %#lx,  %d-bit access.\n",
634                    dev->irq, (int)((dev->mem_end - dev->mem_start)/0x1000) * 4,
635                    dev->mem_start, access_bitmode?32:16);
636         return 0;
637 }
638
639 static int mac8390_open(struct net_device *dev)
640 {
641         __ei_open(dev);
642         if (request_irq(dev->irq, __ei_interrupt, 0, "8390 Ethernet", dev)) {
643                 printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
644                 return -EAGAIN;
645         }
646         return 0;
647 }
648
649 static int mac8390_close(struct net_device *dev)
650 {
651         free_irq(dev->irq, dev);
652         __ei_close(dev);
653         return 0;
654 }
655
656 static void mac8390_no_reset(struct net_device *dev)
657 {
658         ei_status.txing = 0;
659         if (ei_debug > 1)
660                 printk("reset not supported\n");
661         return;
662 }
663
664 static void interlan_reset(struct net_device *dev)
665 {
666         unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
667         if (ei_debug > 1)
668                 printk("Need to reset the NS8390 t=%lu...", jiffies);
669         ei_status.txing = 0;
670         target[0xC0000] = 0;
671         if (ei_debug > 1)
672                 printk("reset complete\n");
673         return;
674 }
675
676 /* dayna_memcpy_fromio/dayna_memcpy_toio */
677 /* directly from daynaport.c by Alan Cox */
678 static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
679 {
680         volatile unsigned char *ptr;
681         unsigned char *target=to;
682         from<<=1;       /* word, skip overhead */
683         ptr=(unsigned char *)(dev->mem_start+from);
684         /* Leading byte? */
685         if (from&2) {
686                 *target++ = ptr[-1];
687                 ptr += 2;
688                 count--;
689         }
690         while(count>=2)
691         {
692                 *(unsigned short *)target = *(unsigned short volatile *)ptr;
693                 ptr += 4;                       /* skip cruft */
694                 target += 2;
695                 count-=2;
696         }
697         /* Trailing byte? */
698         if(count)
699                 *target = *ptr;
700 }
701
702 static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
703 {
704         volatile unsigned short *ptr;
705         const unsigned char *src=from;
706         to<<=1; /* word, skip overhead */
707         ptr=(unsigned short *)(dev->mem_start+to);
708         /* Leading byte? */
709         if (to&2) { /* avoid a byte write (stomps on other data) */
710                 ptr[-1] = (ptr[-1]&0xFF00)|*src++;
711                 ptr++;
712                 count--;
713         }
714         while(count>=2)
715         {
716                 *ptr++=*(unsigned short *)src;          /* Copy and */
717                 ptr++;                  /* skip cruft */
718                 src += 2;
719                 count-=2;
720         }
721         /* Trailing byte? */
722         if(count)
723         {
724                 /* card doesn't like byte writes */
725                 *ptr=(*ptr&0x00FF)|(*src << 8);
726         }
727 }
728
729 /* sane block input/output */
730 static void sane_get_8390_hdr(struct net_device *dev,
731                               struct e8390_pkt_hdr *hdr, int ring_page)
732 {
733         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
734         memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
735         /* Fix endianness */
736         hdr->count = swab16(hdr->count);
737 }
738
739 static void sane_block_input(struct net_device *dev, int count,
740                              struct sk_buff *skb, int ring_offset)
741 {
742         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
743         unsigned long xfer_start = xfer_base + dev->mem_start;
744
745         if (xfer_start + count > ei_status.rmem_end) {
746                 /* We must wrap the input move. */
747                 int semi_count = ei_status.rmem_end - xfer_start;
748                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
749                 count -= semi_count;
750                 memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count);
751         } else {
752                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
753         }
754 }
755
756 static void sane_block_output(struct net_device *dev, int count,
757                               const unsigned char *buf, int start_page)
758 {
759         long shmem = (start_page - WD_START_PG)<<8;
760
761         memcpy_toio((char *)dev->mem_start + shmem, buf, count);
762 }
763
764 /* dayna block input/output */
765 static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
766 {
767         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
768
769         dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4);
770         /* Fix endianness */
771         hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
772 }
773
774 static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
775 {
776         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
777         unsigned long xfer_start = xfer_base+dev->mem_start;
778
779         /* Note the offset math is done in card memory space which is word
780            per long onto our space. */
781
782         if (xfer_start + count > ei_status.rmem_end)
783         {
784                 /* We must wrap the input move. */
785                 int semi_count = ei_status.rmem_end - xfer_start;
786                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
787                 count -= semi_count;
788                 dayna_memcpy_fromcard(dev, skb->data + semi_count,
789                                       ei_status.rmem_start - dev->mem_start,
790                                       count);
791         }
792         else
793         {
794                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
795         }
796 }
797
798 static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
799                                 int start_page)
800 {
801         long shmem = (start_page - WD_START_PG)<<8;
802
803         dayna_memcpy_tocard(dev, shmem, buf, count);
804 }
805
806 /* Cabletron block I/O */
807 static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
808         int ring_page)
809 {
810         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
811         word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
812         /* Register endianism - fix here rather than 8390.c */
813         hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
814 }
815
816 static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
817         int ring_offset)
818 {
819         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
820         unsigned long xfer_start = xfer_base+dev->mem_start;
821
822         if (xfer_start + count > ei_status.rmem_end)
823         {
824                 /* We must wrap the input move. */
825                 int semi_count = ei_status.rmem_end - xfer_start;
826                 word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
827                         xfer_base, semi_count);
828                 count -= semi_count;
829                 word_memcpy_fromcard(skb->data + semi_count,
830                                      (char *)ei_status.rmem_start, count);
831         }
832         else
833         {
834                 word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
835                         xfer_base, count);
836         }
837 }
838
839 static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
840         int start_page)
841 {
842         long shmem = (start_page - WD_START_PG)<<8;
843
844         word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
845 }
846
847 static void word_memcpy_tocard(void *tp, const void *fp, int count)
848 {
849         volatile unsigned short *to = tp;
850         const unsigned short *from = fp;
851
852         count++;
853         count/=2;
854
855         while(count--)
856                 *to++=*from++;
857 }
858
859 static void word_memcpy_fromcard(void *tp, const void *fp, int count)
860 {
861         unsigned short *to = tp;
862         const volatile unsigned short *from = fp;
863
864         count++;
865         count/=2;
866
867         while(count--)
868                 *to++=*from++;
869 }
870
871