[PATCH] powerpc: clear IPIs on kdump
[linux-2.6] / 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
18 #include <linux/module.h>
19 #include <linux/kernel.h>
20 #include <linux/types.h>
21 #include <linux/fcntl.h>
22 #include <linux/interrupt.h>
23 #include <linux/ptrace.h>
24 #include <linux/ioport.h>
25 #include <linux/nubus.h>
26 #include <linux/in.h>
27 #include <linux/slab.h>
28 #include <linux/string.h>
29 #include <linux/errno.h>
30 #include <linux/init.h>
31 #include <linux/netdevice.h>
32 #include <linux/etherdevice.h>
33 #include <linux/skbuff.h>
34 #include <linux/bitops.h>
35
36 #include <asm/system.h>
37 #include <asm/io.h>
38 #include <asm/dma.h>
39 #include <asm/hwtest.h>
40 #include <asm/macints.h>
41
42 #include "8390.h"
43
44 #define WD_START_PG                     0x00    /* First page of TX buffer */
45 #define CABLETRON_RX_START_PG           0x00    /* First page of RX buffer */
46 #define CABLETRON_RX_STOP_PG            0x30    /* Last page +1 of RX ring */
47 #define CABLETRON_TX_START_PG           CABLETRON_RX_STOP_PG  /* First page of TX buffer */
48
49 /* Unfortunately it seems we have to hardcode these for the moment */
50 /* 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? */
51
52 #define DAYNA_8390_BASE         0x80000
53 #define DAYNA_8390_MEM          0x00000
54
55 #define KINETICS_8390_BASE      0x80000
56 #define KINETICS_8390_MEM       0x00000
57
58 #define CABLETRON_8390_BASE     0x90000 
59 #define CABLETRON_8390_MEM      0x00000
60
61 enum mac8390_type {
62         MAC8390_NONE = -1,
63         MAC8390_APPLE,
64         MAC8390_ASANTE,
65         MAC8390_FARALLON,  /* Apple, Asante, and Farallon are all compatible */
66         MAC8390_CABLETRON,
67         MAC8390_DAYNA,
68         MAC8390_INTERLAN,
69         MAC8390_KINETICS,
70         MAC8390_FOCUS,
71         MAC8390_SONICSYS,
72         MAC8390_DAYNA2,
73         MAC8390_DAYNA3,
74 };
75
76 static const char * cardname[] = {
77         "apple",
78         "asante",
79         "farallon",
80         "cabletron",
81         "dayna",
82         "interlan",
83         "kinetics",
84         "focus",
85         "sonic systems",
86         "dayna2",
87         "dayna_lc",
88 };
89
90 static int word16[] = {
91         1, /* apple */
92         1, /* asante */
93         1, /* farallon */
94         1, /* cabletron */
95         0, /* dayna */
96         1, /* interlan */
97         0, /* kinetics */
98         1, /* focus (??) */
99         1, /* sonic systems  */
100         1, /* dayna2 */
101         1, /* dayna-lc */
102 };
103
104 /* on which cards do we use NuBus resources? */
105 static int useresources[] = {
106         1, /* apple */
107         1, /* asante */
108         1, /* farallon */
109         0, /* cabletron */
110         0, /* dayna */
111         0, /* interlan */
112         0, /* kinetics */
113         0, /* focus (??) */
114         1, /* sonic systems */
115         1, /* dayna2 */
116         1, /* dayna-lc */
117 };
118
119 static char version[] __initdata =
120         "mac8390.c: v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
121                 
122 extern enum mac8390_type mac8390_ident(struct nubus_dev * dev);
123 extern int mac8390_memsize(unsigned long membase);
124 extern int mac8390_memtest(struct net_device * dev);
125 static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
126                            enum mac8390_type type);
127
128 static int mac8390_open(struct net_device * dev);
129 static int mac8390_close(struct net_device * dev);
130 static void mac8390_no_reset(struct net_device *dev);
131
132 /* Sane (32-bit chunk memory read/write) - Apple/Asante/Farallon do this*/
133 static void sane_get_8390_hdr(struct net_device *dev,
134                               struct e8390_pkt_hdr *hdr, int ring_page);
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);
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
154 #define memcpy_fromio(a,b,c)    memcpy((a),(void *)(b),(c))
155 #define memcpy_toio(a,b,c)      memcpy((void *)(a),(b),(c))
156
157 /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
158 static void slow_sane_get_8390_hdr(struct net_device *dev,
159                                    struct e8390_pkt_hdr *hdr, int ring_page);
160 static void slow_sane_block_input(struct net_device *dev, int count,
161                                   struct sk_buff *skb, int ring_offset);
162 static void slow_sane_block_output(struct net_device *dev, int count,
163                                    const unsigned char *buf, int start_page);
164 static void word_memcpy_tocard(void *tp, const void *fp, int count);
165 static void word_memcpy_fromcard(void *tp, const void *fp, int count);
166
167 enum mac8390_type __init mac8390_ident(struct nubus_dev * dev)
168 {
169         if (dev->dr_sw == NUBUS_DRSW_ASANTE)
170                 return MAC8390_ASANTE;
171         if (dev->dr_sw == NUBUS_DRSW_FARALLON) 
172                 return MAC8390_FARALLON;
173         if (dev->dr_sw == NUBUS_DRSW_KINETICS)
174                 return MAC8390_KINETICS;
175         if (dev->dr_sw == NUBUS_DRSW_DAYNA)
176                 return MAC8390_DAYNA;
177         if (dev->dr_sw == NUBUS_DRSW_DAYNA2)
178                 return MAC8390_DAYNA2;
179         if (dev->dr_sw == NUBUS_DRSW_DAYNA_LC)
180                 return MAC8390_DAYNA3;
181         if (dev->dr_hw == NUBUS_DRHW_CABLETRON)
182                 return MAC8390_CABLETRON;
183         return MAC8390_NONE;
184 }
185
186 int __init mac8390_memsize(unsigned long membase)
187 {
188         unsigned long flags;
189         int i, j;
190         
191         local_irq_save(flags);
192         /* Check up to 32K in 4K increments */
193         for (i = 0; i < 8; i++) {
194                 volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
195
196                 /* Unwriteable - we have a fully decoded card and the
197                    RAM end located */
198                 if (hwreg_present(m) == 0)
199                         break;
200                 
201                 /* write a distinctive byte */
202                 *m = 0xA5A0 | i;
203                 /* check that we read back what we wrote */
204                 if (*m != (0xA5A0 | i))
205                         break;
206
207                 /* check for partial decode and wrap */
208                 for (j = 0; j < i; j++) {
209                         volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
210                         if (*p != (0xA5A0 | j))
211                                 break;
212                 }
213         }
214         local_irq_restore(flags);
215         /* in any case, we stopped once we tried one block too many,
216            or once we reached 32K */
217         return i * 0x1000;
218 }
219
220 struct net_device * __init mac8390_probe(int unit)
221 {
222         struct net_device *dev;
223         volatile unsigned short *i;
224         int version_disp = 0;
225         struct nubus_dev * ndev = NULL;
226         int err = -ENODEV;
227         
228         struct nubus_dir dir;
229         struct nubus_dirent ent;
230         int offset;
231         static unsigned int slots;
232
233         enum mac8390_type cardtype;
234
235         /* probably should check for Nubus instead */
236
237         if (!MACH_IS_MAC)
238                 return ERR_PTR(-ENODEV);
239
240         dev = alloc_ei_netdev();
241         if (!dev)
242                 return ERR_PTR(-ENOMEM);
243
244         if (unit >= 0)
245                 sprintf(dev->name, "eth%d", unit);
246
247         SET_MODULE_OWNER(dev);
248
249         while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
250                 /* Have we seen it already? */
251                 if (slots & (1<<ndev->board->slot))
252                         continue;
253                 slots |= 1<<ndev->board->slot;
254
255                 if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
256                         continue;
257
258                 if (version_disp == 0) {
259                         version_disp = 1;
260                         printk(version);
261                 }
262
263                 dev->irq = SLOT2IRQ(ndev->board->slot);
264                 /* This is getting to be a habit */
265                 dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
266
267                 /* Get some Nubus info - we will trust the card's idea
268                    of where its memory and registers are. */
269
270                 if (nubus_get_func_dir(ndev, &dir) == -1) {
271                         printk(KERN_ERR "%s: Unable to get Nubus functional"
272                                         " directory for slot %X!\n",
273                                dev->name, ndev->board->slot);
274                         continue;
275                 }
276                 
277                 /* Get the MAC address */
278                 if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
279                         printk(KERN_INFO "%s: Couldn't get MAC address!\n",
280                                         dev->name);
281                         continue;
282                 } else {
283                         nubus_get_rsrc_mem(dev->dev_addr, &ent, 6);
284                         /* Some Sonic Sys cards masquerade as Farallon */
285                         if (cardtype == MAC8390_FARALLON && 
286                                         dev->dev_addr[0] == 0x0 &&
287                                         dev->dev_addr[1] == 0x40 &&
288                                         dev->dev_addr[2] == 0x10) {
289                                 /* This is really Sonic Sys card */
290                                 cardtype = MAC8390_SONICSYS;
291                         }
292                 }
293                 
294                 if (useresources[cardtype] == 1) {
295                         nubus_rewinddir(&dir);
296                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
297                                 printk(KERN_ERR "%s: Memory offset resource"
298                                                 " for slot %X not found!\n",
299                                        dev->name, ndev->board->slot);
300                                 continue;
301                         }
302                         nubus_get_rsrc_mem(&offset, &ent, 4);
303                         dev->mem_start = dev->base_addr + offset;
304                         /* yes, this is how the Apple driver does it */
305                         dev->base_addr = dev->mem_start + 0x10000;
306                         nubus_rewinddir(&dir);
307                         if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
308                                 printk(KERN_INFO "%s: Memory length resource"
309                                                  " for slot %X not found"
310                                                  ", probing\n",
311                                        dev->name, ndev->board->slot);
312                                 offset = mac8390_memsize(dev->mem_start);
313                                 } else {
314                                         nubus_get_rsrc_mem(&offset, &ent, 4);
315                                 }
316                         dev->mem_end = dev->mem_start + offset;
317                 } else {
318                         switch (cardtype) {
319                                 case MAC8390_KINETICS:
320                                 case MAC8390_DAYNA: /* it's the same */
321                                         dev->base_addr = 
322                                                 (int)(ndev->board->slot_addr +
323                                                 DAYNA_8390_BASE);
324                                         dev->mem_start = 
325                                                 (int)(ndev->board->slot_addr +
326                                                 DAYNA_8390_MEM);
327                                         dev->mem_end =
328                                                 dev->mem_start +
329                                                 mac8390_memsize(dev->mem_start);
330                                         break;
331                                 case MAC8390_CABLETRON:
332                                         dev->base_addr =
333                                                 (int)(ndev->board->slot_addr +
334                                                 CABLETRON_8390_BASE);
335                                         dev->mem_start =
336                                                 (int)(ndev->board->slot_addr +
337                                                 CABLETRON_8390_MEM);
338                                         /* The base address is unreadable if 0x00
339                                          * has been written to the command register
340                                          * Reset the chip by writing E8390_NODMA +
341                                          *   E8390_PAGE0 + E8390_STOP just to be
342                                          *   sure
343                                          */
344                                         i = (void *)dev->base_addr;
345                                         *i = 0x21;
346                                         dev->mem_end = 
347                                                 dev->mem_start +
348                                                 mac8390_memsize(dev->mem_start);
349                                         break;
350                                         
351                                 default:
352                                         printk(KERN_ERR "Card type %s is"
353                                                         " unsupported, sorry\n",
354                                                cardname[cardtype]);
355                                         continue;
356                         }
357                 }
358
359                 /* Do the nasty 8390 stuff */
360                 if (!mac8390_initdev(dev, ndev, cardtype))
361                         break;
362         }
363
364         if (!ndev)
365                 goto out;
366         err = register_netdev(dev);
367         if (err)
368                 goto out;
369         return dev;
370
371 out:
372         free_netdev(dev);
373         return ERR_PTR(err);
374 }
375
376 #ifdef MODULE
377 MODULE_AUTHOR("David Huggins-Daines <dhd@debian.org> and others");
378 MODULE_DESCRIPTION("Macintosh NS8390-based Nubus Ethernet driver");
379 MODULE_LICENSE("GPL");
380
381 /* overkill, of course */
382 static struct net_device *dev_mac8390[15];
383 int init_module(void)
384 {
385         int i;
386         for (i = 0; i < 15; i++) {
387                 struct net_device *dev = mac8390_probe(-1);
388                 if (IS_ERR(dev))
389                         break;
390                 dev_mac890[i] = dev;
391         }
392         if (!i) {
393                 printk(KERN_NOTICE "mac8390.c: No useable cards found, driver NOT installed.\n");
394                 return -ENODEV;
395         }
396         return 0;
397 }
398
399 void cleanup_module(void)
400 {
401         int i;
402         for (i = 0; i < 15; i++) {
403                 struct net_device *dev = dev_mac890[i];
404                 if (dev) {
405                         unregister_netdev(dev);
406                         free_netdev(dev);
407                 }
408         }
409 }
410
411 #endif /* MODULE */
412
413 static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
414                             enum mac8390_type type)
415 {
416         static u32 fwrd4_offsets[16]={
417                 0,      4,      8,      12,
418                 16,     20,     24,     28,
419                 32,     36,     40,     44,
420                 48,     52,     56,     60
421         };
422         static u32 back4_offsets[16]={
423                 60,     56,     52,     48,
424                 44,     40,     36,     32,
425                 28,     24,     20,     16,
426                 12,     8,      4,      0
427         };
428         static u32 fwrd2_offsets[16]={
429                 0,      2,      4,      6,
430                 8,     10,     12,     14,
431                 16,    18,     20,     22,
432                 24,    26,     28,     30
433         };
434
435         int access_bitmode;
436         
437         /* Now fill in our stuff */
438         dev->open = &mac8390_open;
439         dev->stop = &mac8390_close;
440 #ifdef CONFIG_NET_POLL_CONTROLLER
441         dev->poll_controller = ei_poll;
442 #endif
443
444         /* GAR, ei_status is actually a macro even though it looks global */
445         ei_status.name = cardname[type];
446         ei_status.word16 = word16[type];
447
448         /* Cabletron's TX/RX buffers are backwards */
449         if (type == MAC8390_CABLETRON) {
450                ei_status.tx_start_page = CABLETRON_TX_START_PG;
451                ei_status.rx_start_page = CABLETRON_RX_START_PG;
452                ei_status.stop_page = CABLETRON_RX_STOP_PG;
453                ei_status.rmem_start = dev->mem_start;
454                ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
455         } else {
456                ei_status.tx_start_page = WD_START_PG;
457                ei_status.rx_start_page = WD_START_PG + TX_PAGES;
458                ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
459                ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
460                ei_status.rmem_end = dev->mem_end;
461         }
462         
463         /* Fill in model-specific information and functions */
464         switch(type) {
465         case MAC8390_SONICSYS:
466                 /* 16 bit card, register map is reversed */
467                 ei_status.reset_8390 = &mac8390_no_reset;
468                 ei_status.block_input = &slow_sane_block_input;
469                 ei_status.block_output = &slow_sane_block_output;
470                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
471                 ei_status.reg_offset = back4_offsets;
472                 access_bitmode = 0;
473                 break;
474         case MAC8390_FARALLON:
475         case MAC8390_APPLE:
476         case MAC8390_ASANTE:
477         case MAC8390_DAYNA2:
478         case MAC8390_DAYNA3:
479                 /* 32 bit card, register map is reversed */
480                 /* sane */
481                 ei_status.reset_8390 = &mac8390_no_reset;
482                 ei_status.block_input = &sane_block_input;
483                 ei_status.block_output = &sane_block_output;
484                 ei_status.get_8390_hdr = &sane_get_8390_hdr;
485                 ei_status.reg_offset = back4_offsets;
486                 access_bitmode = 1;
487                 break;
488         case MAC8390_CABLETRON:
489                 /* 16 bit card, register map is short forward */
490                 ei_status.reset_8390 = &mac8390_no_reset;
491                 ei_status.block_input = &slow_sane_block_input;
492                 ei_status.block_output = &slow_sane_block_output;
493                 ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
494                 ei_status.reg_offset = fwrd2_offsets;
495                 access_bitmode = 0;
496                 break;
497         case MAC8390_DAYNA:
498         case MAC8390_KINETICS:
499                 /* 16 bit memory */
500                 /* dayna and similar */
501                 ei_status.reset_8390 = &mac8390_no_reset;
502                 ei_status.block_input = &dayna_block_input;
503                 ei_status.block_output = &dayna_block_output;
504                 ei_status.get_8390_hdr = &dayna_get_8390_hdr;
505                 ei_status.reg_offset = fwrd4_offsets;
506                 access_bitmode = 0;
507                 break;
508         default:
509                 printk(KERN_ERR "Card type %s is unsupported, sorry\n", cardname[type]);
510                 return -ENODEV;
511         }
512                 
513         NS8390_init(dev, 0);
514
515         /* Good, done, now spit out some messages */
516         printk(KERN_INFO "%s: %s in slot %X (type %s)\n",
517                    dev->name, ndev->board->name, ndev->board->slot, cardname[type]);
518         printk(KERN_INFO "MAC ");
519         {
520                 int i;
521                 for (i = 0; i < 6; i++) {
522                         printk("%2.2x", dev->dev_addr[i]);
523                         if (i < 5)
524                                 printk(":");
525                 }
526         }
527         printk(" IRQ %d, shared memory at %#lx-%#lx,  %d-bit access.\n",
528                    dev->irq, dev->mem_start, dev->mem_end-1, 
529                    access_bitmode?32:16);
530         return 0;
531 }
532
533 static int mac8390_open(struct net_device *dev)
534 {
535         ei_open(dev);
536         if (request_irq(dev->irq, ei_interrupt, 0, "8390 Ethernet", dev)) {
537                 printk ("%s: unable to get IRQ %d.\n", dev->name, dev->irq);
538                 return -EAGAIN;
539         }       
540         return 0;
541 }
542
543 static int mac8390_close(struct net_device *dev)
544 {
545         free_irq(dev->irq, dev);
546         ei_close(dev);
547         return 0;
548 }
549
550 static void mac8390_no_reset(struct net_device *dev)
551 {
552         ei_status.txing = 0;
553         if (ei_debug > 1)
554                 printk("reset not supported\n");
555         return;
556 }
557
558 /* dayna_memcpy_fromio/dayna_memcpy_toio */
559 /* directly from daynaport.c by Alan Cox */
560 static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
561 {
562         volatile unsigned char *ptr;
563         unsigned char *target=to;
564         from<<=1;       /* word, skip overhead */
565         ptr=(unsigned char *)(dev->mem_start+from);
566         /* Leading byte? */
567         if (from&2) {
568                 *target++ = ptr[-1];
569                 ptr += 2;
570                 count--;
571         }
572         while(count>=2)
573         {
574                 *(unsigned short *)target = *(unsigned short volatile *)ptr;
575                 ptr += 4;                       /* skip cruft */
576                 target += 2;
577                 count-=2;
578         }
579         /* Trailing byte? */
580         if(count)
581                 *target = *ptr;
582 }
583
584 static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
585 {
586         volatile unsigned short *ptr;
587         const unsigned char *src=from;
588         to<<=1; /* word, skip overhead */
589         ptr=(unsigned short *)(dev->mem_start+to);
590         /* Leading byte? */
591         if (to&2) { /* avoid a byte write (stomps on other data) */
592                 ptr[-1] = (ptr[-1]&0xFF00)|*src++;
593                 ptr++;
594                 count--;
595         }
596         while(count>=2)
597         {
598                 *ptr++=*(unsigned short *)src;          /* Copy and */
599                 ptr++;                  /* skip cruft */
600                 src += 2;
601                 count-=2;
602         }
603         /* Trailing byte? */
604         if(count)
605         {
606                 /* card doesn't like byte writes */
607                 *ptr=(*ptr&0x00FF)|(*src << 8);
608         }
609 }
610
611 /* sane block input/output */
612 static void sane_get_8390_hdr(struct net_device *dev,
613                               struct e8390_pkt_hdr *hdr, int ring_page)
614 {
615         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
616         memcpy_fromio((void *)hdr, (char *)dev->mem_start + hdr_start, 4);
617         /* Fix endianness */
618         hdr->count = swab16(hdr->count);
619 }
620
621 static void sane_block_input(struct net_device *dev, int count,
622                              struct sk_buff *skb, int ring_offset)
623 {
624         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
625         unsigned long xfer_start = xfer_base + dev->mem_start;
626
627         if (xfer_start + count > ei_status.rmem_end) {
628                 /* We must wrap the input move. */
629                 int semi_count = ei_status.rmem_end - xfer_start;
630                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
631                 count -= semi_count;
632                 memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count);
633         } else {
634                 memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
635         }
636 }
637
638 static void sane_block_output(struct net_device *dev, int count,
639                               const unsigned char *buf, int start_page)
640 {
641         long shmem = (start_page - WD_START_PG)<<8;
642         
643         memcpy_toio((char *)dev->mem_start + shmem, buf, count);
644 }
645
646 /* dayna block input/output */
647 static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
648 {
649         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
650
651         dayna_memcpy_fromcard(dev, (void *)hdr, hdr_start, 4);
652         /* Fix endianness */
653         hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
654 }
655
656 static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
657 {
658         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
659         unsigned long xfer_start = xfer_base+dev->mem_start;
660
661         /* Note the offset math is done in card memory space which is word
662            per long onto our space. */
663
664         if (xfer_start + count > ei_status.rmem_end)
665         {
666                 /* We must wrap the input move. */
667                 int semi_count = ei_status.rmem_end - xfer_start;
668                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
669                 count -= semi_count;
670                 dayna_memcpy_fromcard(dev, skb->data + semi_count,
671                                       ei_status.rmem_start - dev->mem_start,
672                                       count);
673         }
674         else
675         {
676                 dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
677         }
678 }
679
680 static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
681                                 int start_page)
682 {
683         long shmem = (start_page - WD_START_PG)<<8;
684         
685         dayna_memcpy_tocard(dev, shmem, buf, count);
686 }
687
688 /* Cabletron block I/O */
689 static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, 
690         int ring_page)
691 {
692         unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
693         word_memcpy_fromcard((void *)hdr, (char *)dev->mem_start+hdr_start, 4);
694         /* Register endianism - fix here rather than 8390.c */
695         hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
696 }
697
698 static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
699         int ring_offset)
700 {
701         unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
702         unsigned long xfer_start = xfer_base+dev->mem_start;
703
704         if (xfer_start + count > ei_status.rmem_end)
705         {
706                 /* We must wrap the input move. */
707                 int semi_count = ei_status.rmem_end - xfer_start;
708                 word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
709                         xfer_base, semi_count);
710                 count -= semi_count;
711                 word_memcpy_fromcard(skb->data + semi_count,
712                                      (char *)ei_status.rmem_start, count);
713         }
714         else
715         {
716                 word_memcpy_fromcard(skb->data, (char *)dev->mem_start +
717                         xfer_base, count);
718         }
719 }
720
721 static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
722         int start_page)
723 {
724         long shmem = (start_page - WD_START_PG)<<8;
725
726         word_memcpy_tocard((char *)dev->mem_start + shmem, buf, count);
727 }
728
729 static void word_memcpy_tocard(void *tp, const void *fp, int count)
730 {
731         volatile unsigned short *to = tp;
732         const unsigned short *from = fp;
733
734         count++;
735         count/=2;
736
737         while(count--)
738                 *to++=*from++;
739 }
740
741 static void word_memcpy_fromcard(void *tp, const void *fp, int count)
742 {
743         unsigned short *to = tp;
744         const volatile unsigned short *from = fp;
745
746         count++;
747         count/=2;
748
749         while(count--)
750                 *to++=*from++;
751 }
752
753