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15#include <linux/module.h>
16#include <linux/moduleparam.h>
17#include <linux/kernel.h>
18#include <linux/string.h>
19#include <linux/major.h>
20#include <linux/errno.h>
21#include <linux/timer.h>
22#include <linux/slab.h>
23#include <linux/mm.h>
24#include <linux/pci.h>
25#include <linux/ioport.h>
26#include <asm/io.h>
27#include <asm/byteorder.h>
28#include <asm/unaligned.h>
29
30#include <pcmcia/cs_types.h>
31#include <pcmcia/ss.h>
32#include <pcmcia/cs.h>
33#include <pcmcia/cisreg.h>
34#include <pcmcia/cistpl.h>
35#include "cs_internal.h"
36
37static const u_char mantissa[] = {
38 10, 12, 13, 15, 20, 25, 30, 35,
39 40, 45, 50, 55, 60, 70, 80, 90
40};
41
42static const u_int exponent[] = {
43 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000
44};
45
46
47#define SPEED_CVT(v) \
48 (mantissa[(((v)>>3)&15)-1] * exponent[(v)&7] / 10)
49
50#define POWER_CVT(v) \
51 (mantissa[((v)>>3)&15] * exponent[(v)&7] / 10)
52#define POWER_SCALE(v) (exponent[(v)&7])
53
54
55#define MAX_TUPLES 200
56
57
58
59
60
61
62static int cis_width;
63module_param(cis_width, int, 0444);
64
65void release_cis_mem(struct pcmcia_socket *s)
66{
67 if (s->cis_mem.flags & MAP_ACTIVE) {
68 s->cis_mem.flags &= ~MAP_ACTIVE;
69 s->ops->set_mem_map(s, &s->cis_mem);
70 if (s->cis_mem.res) {
71 release_resource(s->cis_mem.res);
72 kfree(s->cis_mem.res);
73 s->cis_mem.res = NULL;
74 }
75 iounmap(s->cis_virt);
76 s->cis_virt = NULL;
77 }
78}
79EXPORT_SYMBOL(release_cis_mem);
80
81
82
83
84
85
86static void __iomem *
87set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags)
88{
89 pccard_mem_map *mem = &s->cis_mem;
90 int ret;
91
92 if (!(s->features & SS_CAP_STATIC_MAP) && (mem->res == NULL)) {
93 mem->res = pcmcia_find_mem_region(0, s->map_size, s->map_size, 0, s);
94 if (mem->res == NULL) {
95 dev_printk(KERN_NOTICE, &s->dev,
96 "cs: unable to map card memory!\n");
97 return NULL;
98 }
99 s->cis_virt = NULL;
100 }
101
102 if (!(s->features & SS_CAP_STATIC_MAP) && (!s->cis_virt))
103 s->cis_virt = ioremap(mem->res->start, s->map_size);
104
105 mem->card_start = card_offset;
106 mem->flags = flags;
107
108 ret = s->ops->set_mem_map(s, mem);
109 if (ret) {
110 iounmap(s->cis_virt);
111 s->cis_virt = NULL;
112 return NULL;
113 }
114
115 if (s->features & SS_CAP_STATIC_MAP) {
116 if (s->cis_virt)
117 iounmap(s->cis_virt);
118 s->cis_virt = ioremap(mem->static_start, s->map_size);
119 }
120
121 return s->cis_virt;
122}
123
124
125
126
127
128
129
130
131
132#define IS_ATTR 1
133#define IS_INDIRECT 8
134
135int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
136 u_int len, void *ptr)
137{
138 void __iomem *sys, *end;
139 unsigned char *buf = ptr;
140
141 cs_dbg(s, 3, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len);
142
143 if (attr & IS_INDIRECT) {
144
145
146 u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
147 if (attr & IS_ATTR) {
148 addr *= 2;
149 flags = ICTRL0_AUTOINC;
150 }
151
152 sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0));
153 if (!sys) {
154 memset(ptr, 0xff, len);
155 return -1;
156 }
157
158 writeb(flags, sys+CISREG_ICTRL0);
159 writeb(addr & 0xff, sys+CISREG_IADDR0);
160 writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
161 writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
162 writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
163 for ( ; len > 0; len--, buf++)
164 *buf = readb(sys+CISREG_IDATA0);
165 } else {
166 u_int inc = 1, card_offset, flags;
167
168 flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
169 if (attr) {
170 flags |= MAP_ATTRIB;
171 inc++;
172 addr *= 2;
173 }
174
175 card_offset = addr & ~(s->map_size-1);
176 while (len) {
177 sys = set_cis_map(s, card_offset, flags);
178 if (!sys) {
179 memset(ptr, 0xff, len);
180 return -1;
181 }
182 end = sys + s->map_size;
183 sys = sys + (addr & (s->map_size-1));
184 for ( ; len > 0; len--, buf++, sys += inc) {
185 if (sys == end)
186 break;
187 *buf = readb(sys);
188 }
189 card_offset += s->map_size;
190 addr = 0;
191 }
192 }
193 cs_dbg(s, 3, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n",
194 *(u_char *)(ptr+0), *(u_char *)(ptr+1),
195 *(u_char *)(ptr+2), *(u_char *)(ptr+3));
196 return 0;
197}
198EXPORT_SYMBOL(pcmcia_read_cis_mem);
199
200
201void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr,
202 u_int len, void *ptr)
203{
204 void __iomem *sys, *end;
205 unsigned char *buf = ptr;
206
207 cs_dbg(s, 3, "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len);
208
209 if (attr & IS_INDIRECT) {
210
211
212 u_char flags = ICTRL0_COMMON|ICTRL0_AUTOINC|ICTRL0_BYTEGRAN;
213 if (attr & IS_ATTR) {
214 addr *= 2;
215 flags = ICTRL0_AUTOINC;
216 }
217
218 sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0));
219 if (!sys)
220 return;
221
222 writeb(flags, sys+CISREG_ICTRL0);
223 writeb(addr & 0xff, sys+CISREG_IADDR0);
224 writeb((addr>>8) & 0xff, sys+CISREG_IADDR1);
225 writeb((addr>>16) & 0xff, sys+CISREG_IADDR2);
226 writeb((addr>>24) & 0xff, sys+CISREG_IADDR3);
227 for ( ; len > 0; len--, buf++)
228 writeb(*buf, sys+CISREG_IDATA0);
229 } else {
230 u_int inc = 1, card_offset, flags;
231
232 flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0);
233 if (attr & IS_ATTR) {
234 flags |= MAP_ATTRIB;
235 inc++;
236 addr *= 2;
237 }
238
239 card_offset = addr & ~(s->map_size-1);
240 while (len) {
241 sys = set_cis_map(s, card_offset, flags);
242 if (!sys)
243 return;
244
245 end = sys + s->map_size;
246 sys = sys + (addr & (s->map_size-1));
247 for ( ; len > 0; len--, buf++, sys += inc) {
248 if (sys == end)
249 break;
250 writeb(*buf, sys);
251 }
252 card_offset += s->map_size;
253 addr = 0;
254 }
255 }
256}
257EXPORT_SYMBOL(pcmcia_write_cis_mem);
258
259
260
261
262
263
264
265
266
267
268static void read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr,
269 size_t len, void *ptr)
270{
271 struct cis_cache_entry *cis;
272 int ret;
273
274 if (s->fake_cis) {
275 if (s->fake_cis_len >= addr+len)
276 memcpy(ptr, s->fake_cis+addr, len);
277 else
278 memset(ptr, 0xff, len);
279 return;
280 }
281
282 list_for_each_entry(cis, &s->cis_cache, node) {
283 if (cis->addr == addr && cis->len == len && cis->attr == attr) {
284 memcpy(ptr, cis->cache, len);
285 return;
286 }
287 }
288
289#ifdef CONFIG_CARDBUS
290 if (s->state & SOCKET_CARDBUS)
291 ret = read_cb_mem(s, attr, addr, len, ptr);
292 else
293#endif
294 ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr);
295
296 if (ret == 0) {
297
298 cis = kmalloc(sizeof(struct cis_cache_entry) + len, GFP_KERNEL);
299 if (cis) {
300 cis->addr = addr;
301 cis->len = len;
302 cis->attr = attr;
303 memcpy(cis->cache, ptr, len);
304 list_add(&cis->node, &s->cis_cache);
305 }
306 }
307}
308
309static void
310remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len)
311{
312 struct cis_cache_entry *cis;
313
314 list_for_each_entry(cis, &s->cis_cache, node)
315 if (cis->addr == addr && cis->len == len && cis->attr == attr) {
316 list_del(&cis->node);
317 kfree(cis);
318 break;
319 }
320}
321
322void destroy_cis_cache(struct pcmcia_socket *s)
323{
324 struct list_head *l, *n;
325
326 list_for_each_safe(l, n, &s->cis_cache) {
327 struct cis_cache_entry *cis = list_entry(l, struct cis_cache_entry, node);
328
329 list_del(&cis->node);
330 kfree(cis);
331 }
332
333
334
335
336 kfree(s->fake_cis);
337 s->fake_cis = NULL;
338}
339EXPORT_SYMBOL(destroy_cis_cache);
340
341
342
343
344
345
346
347
348int verify_cis_cache(struct pcmcia_socket *s)
349{
350 struct cis_cache_entry *cis;
351 char *buf;
352
353 buf = kmalloc(256, GFP_KERNEL);
354 if (buf == NULL) {
355 dev_printk(KERN_WARNING, &s->dev,
356 "no memory for verifying CIS\n");
357 return -ENOMEM;
358 }
359 list_for_each_entry(cis, &s->cis_cache, node) {
360 int len = cis->len;
361
362 if (len > 256)
363 len = 256;
364#ifdef CONFIG_CARDBUS
365 if (s->state & SOCKET_CARDBUS)
366 read_cb_mem(s, cis->attr, cis->addr, len, buf);
367 else
368#endif
369 pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf);
370
371 if (memcmp(buf, cis->cache, len) != 0) {
372 kfree(buf);
373 return -1;
374 }
375 }
376 kfree(buf);
377 return 0;
378}
379
380
381
382
383
384
385
386
387int pcmcia_replace_cis(struct pcmcia_socket *s,
388 const u8 *data, const size_t len)
389{
390 if (len > CISTPL_MAX_CIS_SIZE) {
391 dev_printk(KERN_WARNING, &s->dev, "replacement CIS too big\n");
392 return -EINVAL;
393 }
394 kfree(s->fake_cis);
395 s->fake_cis = kmalloc(len, GFP_KERNEL);
396 if (s->fake_cis == NULL) {
397 dev_printk(KERN_WARNING, &s->dev, "no memory to replace CIS\n");
398 return -ENOMEM;
399 }
400 s->fake_cis_len = len;
401 memcpy(s->fake_cis, data, len);
402 return 0;
403}
404EXPORT_SYMBOL(pcmcia_replace_cis);
405
406
407
408
409
410
411
412typedef struct tuple_flags {
413 u_int link_space:4;
414 u_int has_link:1;
415 u_int mfc_fn:3;
416 u_int space:4;
417} tuple_flags;
418
419#define LINK_SPACE(f) (((tuple_flags *)(&(f)))->link_space)
420#define HAS_LINK(f) (((tuple_flags *)(&(f)))->has_link)
421#define MFC_FN(f) (((tuple_flags *)(&(f)))->mfc_fn)
422#define SPACE(f) (((tuple_flags *)(&(f)))->space)
423
424int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int func, tuple_t *tuple);
425
426int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple)
427{
428 if (!s)
429 return -EINVAL;
430 if (!(s->state & SOCKET_PRESENT))
431 return -ENODEV;
432 tuple->TupleLink = tuple->Flags = 0;
433#ifdef CONFIG_CARDBUS
434 if (s->state & SOCKET_CARDBUS) {
435 struct pci_dev *dev = s->cb_dev;
436 u_int ptr;
437 pci_bus_read_config_dword(dev->subordinate, 0, PCI_CARDBUS_CIS, &ptr);
438 tuple->CISOffset = ptr & ~7;
439 SPACE(tuple->Flags) = (ptr & 7);
440 } else
441#endif
442 {
443
444 tuple->CISOffset = tuple->LinkOffset = 0;
445 SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1;
446 }
447 if (!(s->state & SOCKET_CARDBUS) && (s->functions > 1) &&
448 !(tuple->Attributes & TUPLE_RETURN_COMMON)) {
449 cisdata_t req = tuple->DesiredTuple;
450 tuple->DesiredTuple = CISTPL_LONGLINK_MFC;
451 if (pccard_get_next_tuple(s, function, tuple) == 0) {
452 tuple->DesiredTuple = CISTPL_LINKTARGET;
453 if (pccard_get_next_tuple(s, function, tuple) != 0)
454 return -ENOSPC;
455 } else
456 tuple->CISOffset = tuple->TupleLink = 0;
457 tuple->DesiredTuple = req;
458 }
459 return pccard_get_next_tuple(s, function, tuple);
460}
461EXPORT_SYMBOL(pccard_get_first_tuple);
462
463static int follow_link(struct pcmcia_socket *s, tuple_t *tuple)
464{
465 u_char link[5];
466 u_int ofs;
467
468 if (MFC_FN(tuple->Flags)) {
469
470 read_cis_cache(s, LINK_SPACE(tuple->Flags),
471 tuple->LinkOffset, 5, link);
472 ofs = get_unaligned_le32(link + 1);
473 SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR);
474
475 tuple->LinkOffset += 5;
476 MFC_FN(tuple->Flags)--;
477 } else if (HAS_LINK(tuple->Flags)) {
478 ofs = tuple->LinkOffset;
479 SPACE(tuple->Flags) = LINK_SPACE(tuple->Flags);
480 HAS_LINK(tuple->Flags) = 0;
481 } else {
482 return -1;
483 }
484 if (!(s->state & SOCKET_CARDBUS) && SPACE(tuple->Flags)) {
485
486
487 read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
488 if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
489 (strncmp(link+2, "CIS", 3) == 0))
490 return ofs;
491 remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
492
493 ofs = ofs >> 1;
494 }
495 read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link);
496 if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) &&
497 (strncmp(link+2, "CIS", 3) == 0))
498 return ofs;
499 remove_cis_cache(s, SPACE(tuple->Flags), ofs, 5);
500 return -1;
501}
502
503int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_t *tuple)
504{
505 u_char link[2], tmp;
506 int ofs, i, attr;
507
508 if (!s)
509 return -EINVAL;
510 if (!(s->state & SOCKET_PRESENT))
511 return -ENODEV;
512
513 link[1] = tuple->TupleLink;
514 ofs = tuple->CISOffset + tuple->TupleLink;
515 attr = SPACE(tuple->Flags);
516
517 for (i = 0; i < MAX_TUPLES; i++) {
518 if (link[1] == 0xff) {
519 link[0] = CISTPL_END;
520 } else {
521 read_cis_cache(s, attr, ofs, 2, link);
522 if (link[0] == CISTPL_NULL) {
523 ofs++; continue;
524 }
525 }
526
527
528 if (link[0] == CISTPL_END) {
529 if ((ofs = follow_link(s, tuple)) < 0)
530 return -ENOSPC;
531 attr = SPACE(tuple->Flags);
532 read_cis_cache(s, attr, ofs, 2, link);
533 }
534
535
536 if ((link[0] == CISTPL_LONGLINK_A) ||
537 (link[0] == CISTPL_LONGLINK_C) ||
538 (link[0] == CISTPL_LONGLINK_MFC) ||
539 (link[0] == CISTPL_LINKTARGET) ||
540 (link[0] == CISTPL_INDIRECT) ||
541 (link[0] == CISTPL_NO_LINK)) {
542 switch (link[0]) {
543 case CISTPL_LONGLINK_A:
544 HAS_LINK(tuple->Flags) = 1;
545 LINK_SPACE(tuple->Flags) = attr | IS_ATTR;
546 read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
547 break;
548 case CISTPL_LONGLINK_C:
549 HAS_LINK(tuple->Flags) = 1;
550 LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR;
551 read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset);
552 break;
553 case CISTPL_INDIRECT:
554 HAS_LINK(tuple->Flags) = 1;
555 LINK_SPACE(tuple->Flags) = IS_ATTR | IS_INDIRECT;
556 tuple->LinkOffset = 0;
557 break;
558 case CISTPL_LONGLINK_MFC:
559 tuple->LinkOffset = ofs + 3;
560 LINK_SPACE(tuple->Flags) = attr;
561 if (function == BIND_FN_ALL) {
562
563 read_cis_cache(s, attr, ofs+2, 1, &tmp);
564 MFC_FN(tuple->Flags) = tmp;
565 } else {
566
567 MFC_FN(tuple->Flags) = 1;
568 tuple->LinkOffset += function * 5;
569 }
570 break;
571 case CISTPL_NO_LINK:
572 HAS_LINK(tuple->Flags) = 0;
573 break;
574 }
575 if ((tuple->Attributes & TUPLE_RETURN_LINK) &&
576 (tuple->DesiredTuple == RETURN_FIRST_TUPLE))
577 break;
578 } else
579 if (tuple->DesiredTuple == RETURN_FIRST_TUPLE)
580 break;
581
582 if (link[0] == tuple->DesiredTuple)
583 break;
584 ofs += link[1] + 2;
585 }
586 if (i == MAX_TUPLES) {
587 cs_dbg(s, 1, "cs: overrun in pcmcia_get_next_tuple\n");
588 return -ENOSPC;
589 }
590
591 tuple->TupleCode = link[0];
592 tuple->TupleLink = link[1];
593 tuple->CISOffset = ofs + 2;
594 return 0;
595}
596EXPORT_SYMBOL(pccard_get_next_tuple);
597
598
599
600#define _MIN(a, b) (((a) < (b)) ? (a) : (b))
601
602int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple)
603{
604 u_int len;
605
606 if (!s)
607 return -EINVAL;
608
609 if (tuple->TupleLink < tuple->TupleOffset)
610 return -ENOSPC;
611 len = tuple->TupleLink - tuple->TupleOffset;
612 tuple->TupleDataLen = tuple->TupleLink;
613 if (len == 0)
614 return 0;
615 read_cis_cache(s, SPACE(tuple->Flags),
616 tuple->CISOffset + tuple->TupleOffset,
617 _MIN(len, tuple->TupleDataMax), tuple->TupleData);
618 return 0;
619}
620EXPORT_SYMBOL(pccard_get_tuple_data);
621
622
623
624
625
626
627
628
629static int parse_device(tuple_t *tuple, cistpl_device_t *device)
630{
631 int i;
632 u_char scale;
633 u_char *p, *q;
634
635 p = (u_char *)tuple->TupleData;
636 q = p + tuple->TupleDataLen;
637
638 device->ndev = 0;
639 for (i = 0; i < CISTPL_MAX_DEVICES; i++) {
640
641 if (*p == 0xff) break;
642 device->dev[i].type = (*p >> 4);
643 device->dev[i].wp = (*p & 0x08) ? 1 : 0;
644 switch (*p & 0x07) {
645 case 0: device->dev[i].speed = 0; break;
646 case 1: device->dev[i].speed = 250; break;
647 case 2: device->dev[i].speed = 200; break;
648 case 3: device->dev[i].speed = 150; break;
649 case 4: device->dev[i].speed = 100; break;
650 case 7:
651 if (++p == q)
652 return -EINVAL;
653 device->dev[i].speed = SPEED_CVT(*p);
654 while (*p & 0x80)
655 if (++p == q)
656 return -EINVAL;
657 break;
658 default:
659 return -EINVAL;
660 }
661
662 if (++p == q)
663 return -EINVAL;
664 if (*p == 0xff)
665 break;
666 scale = *p & 7;
667 if (scale == 7)
668 return -EINVAL;
669 device->dev[i].size = ((*p >> 3) + 1) * (512 << (scale*2));
670 device->ndev++;
671 if (++p == q)
672 break;
673 }
674
675 return 0;
676}
677
678
679
680static int parse_checksum(tuple_t *tuple, cistpl_checksum_t *csum)
681{
682 u_char *p;
683 if (tuple->TupleDataLen < 5)
684 return -EINVAL;
685 p = (u_char *) tuple->TupleData;
686 csum->addr = tuple->CISOffset + get_unaligned_le16(p) - 2;
687 csum->len = get_unaligned_le16(p + 2);
688 csum->sum = *(p + 4);
689 return 0;
690}
691
692
693
694static int parse_longlink(tuple_t *tuple, cistpl_longlink_t *link)
695{
696 if (tuple->TupleDataLen < 4)
697 return -EINVAL;
698 link->addr = get_unaligned_le32(tuple->TupleData);
699 return 0;
700}
701
702
703
704static int parse_longlink_mfc(tuple_t *tuple,
705 cistpl_longlink_mfc_t *link)
706{
707 u_char *p;
708 int i;
709
710 p = (u_char *)tuple->TupleData;
711
712 link->nfn = *p; p++;
713 if (tuple->TupleDataLen <= link->nfn*5)
714 return -EINVAL;
715 for (i = 0; i < link->nfn; i++) {
716 link->fn[i].space = *p; p++;
717 link->fn[i].addr = get_unaligned_le32(p);
718 p += 4;
719 }
720 return 0;
721}
722
723
724
725static int parse_strings(u_char *p, u_char *q, int max,
726 char *s, u_char *ofs, u_char *found)
727{
728 int i, j, ns;
729
730 if (p == q)
731 return -EINVAL;
732 ns = 0; j = 0;
733 for (i = 0; i < max; i++) {
734 if (*p == 0xff)
735 break;
736 ofs[i] = j;
737 ns++;
738 for (;;) {
739 s[j++] = (*p == 0xff) ? '\0' : *p;
740 if ((*p == '\0') || (*p == 0xff)) break;
741 if (++p == q)
742 return -EINVAL;
743 }
744 if ((*p == 0xff) || (++p == q)) break;
745 }
746 if (found) {
747 *found = ns;
748 return 0;
749 } else {
750 return (ns == max) ? 0 : -EINVAL;
751 }
752}
753
754
755
756static int parse_vers_1(tuple_t *tuple, cistpl_vers_1_t *vers_1)
757{
758 u_char *p, *q;
759
760 p = (u_char *)tuple->TupleData;
761 q = p + tuple->TupleDataLen;
762
763 vers_1->major = *p; p++;
764 vers_1->minor = *p; p++;
765 if (p >= q)
766 return -EINVAL;
767
768 return parse_strings(p, q, CISTPL_VERS_1_MAX_PROD_STRINGS,
769 vers_1->str, vers_1->ofs, &vers_1->ns);
770}
771
772
773
774static int parse_altstr(tuple_t *tuple, cistpl_altstr_t *altstr)
775{
776 u_char *p, *q;
777
778 p = (u_char *)tuple->TupleData;
779 q = p + tuple->TupleDataLen;
780
781 return parse_strings(p, q, CISTPL_MAX_ALTSTR_STRINGS,
782 altstr->str, altstr->ofs, &altstr->ns);
783}
784
785
786
787static int parse_jedec(tuple_t *tuple, cistpl_jedec_t *jedec)
788{
789 u_char *p, *q;
790 int nid;
791
792 p = (u_char *)tuple->TupleData;
793 q = p + tuple->TupleDataLen;
794
795 for (nid = 0; nid < CISTPL_MAX_DEVICES; nid++) {
796 if (p > q-2) break;
797 jedec->id[nid].mfr = p[0];
798 jedec->id[nid].info = p[1];
799 p += 2;
800 }
801 jedec->nid = nid;
802 return 0;
803}
804
805
806
807static int parse_manfid(tuple_t *tuple, cistpl_manfid_t *m)
808{
809 if (tuple->TupleDataLen < 4)
810 return -EINVAL;
811 m->manf = get_unaligned_le16(tuple->TupleData);
812 m->card = get_unaligned_le16(tuple->TupleData + 2);
813 return 0;
814}
815
816
817
818static int parse_funcid(tuple_t *tuple, cistpl_funcid_t *f)
819{
820 u_char *p;
821 if (tuple->TupleDataLen < 2)
822 return -EINVAL;
823 p = (u_char *)tuple->TupleData;
824 f->func = p[0];
825 f->sysinit = p[1];
826 return 0;
827}
828
829
830
831static int parse_funce(tuple_t *tuple, cistpl_funce_t *f)
832{
833 u_char *p;
834 int i;
835 if (tuple->TupleDataLen < 1)
836 return -EINVAL;
837 p = (u_char *)tuple->TupleData;
838 f->type = p[0];
839 for (i = 1; i < tuple->TupleDataLen; i++)
840 f->data[i-1] = p[i];
841 return 0;
842}
843
844
845
846static int parse_config(tuple_t *tuple, cistpl_config_t *config)
847{
848 int rasz, rmsz, i;
849 u_char *p;
850
851 p = (u_char *)tuple->TupleData;
852 rasz = *p & 0x03;
853 rmsz = (*p & 0x3c) >> 2;
854 if (tuple->TupleDataLen < rasz+rmsz+4)
855 return -EINVAL;
856 config->last_idx = *(++p);
857 p++;
858 config->base = 0;
859 for (i = 0; i <= rasz; i++)
860 config->base += p[i] << (8*i);
861 p += rasz+1;
862 for (i = 0; i < 4; i++)
863 config->rmask[i] = 0;
864 for (i = 0; i <= rmsz; i++)
865 config->rmask[i>>2] += p[i] << (8*(i%4));
866 config->subtuples = tuple->TupleDataLen - (rasz+rmsz+4);
867 return 0;
868}
869
870
871
872
873
874
875
876
877static u_char *parse_power(u_char *p, u_char *q,
878 cistpl_power_t *pwr)
879{
880 int i;
881 u_int scale;
882
883 if (p == q) return NULL;
884 pwr->present = *p;
885 pwr->flags = 0;
886 p++;
887 for (i = 0; i < 7; i++)
888 if (pwr->present & (1<<i)) {
889 if (p == q) return NULL;
890 pwr->param[i] = POWER_CVT(*p);
891 scale = POWER_SCALE(*p);
892 while (*p & 0x80) {
893 if (++p == q) return NULL;
894 if ((*p & 0x7f) < 100)
895 pwr->param[i] += (*p & 0x7f) * scale / 100;
896 else if (*p == 0x7d)
897 pwr->flags |= CISTPL_POWER_HIGHZ_OK;
898 else if (*p == 0x7e)
899 pwr->param[i] = 0;
900 else if (*p == 0x7f)
901 pwr->flags |= CISTPL_POWER_HIGHZ_REQ;
902 else
903 return NULL;
904 }
905 p++;
906 }
907 return p;
908}
909
910
911
912static u_char *parse_timing(u_char *p, u_char *q,
913 cistpl_timing_t *timing)
914{
915 u_char scale;
916
917 if (p == q) return NULL;
918 scale = *p;
919 if ((scale & 3) != 3) {
920 if (++p == q) return NULL;
921 timing->wait = SPEED_CVT(*p);
922 timing->waitscale = exponent[scale & 3];
923 } else
924 timing->wait = 0;
925 scale >>= 2;
926 if ((scale & 7) != 7) {
927 if (++p == q) return NULL;
928 timing->ready = SPEED_CVT(*p);
929 timing->rdyscale = exponent[scale & 7];
930 } else
931 timing->ready = 0;
932 scale >>= 3;
933 if (scale != 7) {
934 if (++p == q) return NULL;
935 timing->reserved = SPEED_CVT(*p);
936 timing->rsvscale = exponent[scale];
937 } else
938 timing->reserved = 0;
939 p++;
940 return p;
941}
942
943
944
945static u_char *parse_io(u_char *p, u_char *q, cistpl_io_t *io)
946{
947 int i, j, bsz, lsz;
948
949 if (p == q) return NULL;
950 io->flags = *p;
951
952 if (!(*p & 0x80)) {
953 io->nwin = 1;
954 io->win[0].base = 0;
955 io->win[0].len = (1 << (io->flags & CISTPL_IO_LINES_MASK));
956 return p+1;
957 }
958
959 if (++p == q) return NULL;
960 io->nwin = (*p & 0x0f) + 1;
961 bsz = (*p & 0x30) >> 4;
962 if (bsz == 3) bsz++;
963 lsz = (*p & 0xc0) >> 6;
964 if (lsz == 3) lsz++;
965 p++;
966
967 for (i = 0; i < io->nwin; i++) {
968 io->win[i].base = 0;
969 io->win[i].len = 1;
970 for (j = 0; j < bsz; j++, p++) {
971 if (p == q) return NULL;
972 io->win[i].base += *p << (j*8);
973 }
974 for (j = 0; j < lsz; j++, p++) {
975 if (p == q) return NULL;
976 io->win[i].len += *p << (j*8);
977 }
978 }
979 return p;
980}
981
982
983
984static u_char *parse_mem(u_char *p, u_char *q, cistpl_mem_t *mem)
985{
986 int i, j, asz, lsz, has_ha;
987 u_int len, ca, ha;
988
989 if (p == q) return NULL;
990
991 mem->nwin = (*p & 0x07) + 1;
992 lsz = (*p & 0x18) >> 3;
993 asz = (*p & 0x60) >> 5;
994 has_ha = (*p & 0x80);
995 if (++p == q) return NULL;
996
997 for (i = 0; i < mem->nwin; i++) {
998 len = ca = ha = 0;
999 for (j = 0; j < lsz; j++, p++) {
1000 if (p == q) return NULL;
1001 len += *p << (j*8);
1002 }
1003 for (j = 0; j < asz; j++, p++) {
1004 if (p == q) return NULL;
1005 ca += *p << (j*8);
1006 }
1007 if (has_ha)
1008 for (j = 0; j < asz; j++, p++) {
1009 if (p == q) return NULL;
1010 ha += *p << (j*8);
1011 }
1012 mem->win[i].len = len << 8;
1013 mem->win[i].card_addr = ca << 8;
1014 mem->win[i].host_addr = ha << 8;
1015 }
1016 return p;
1017}
1018
1019
1020
1021static u_char *parse_irq(u_char *p, u_char *q, cistpl_irq_t *irq)
1022{
1023 if (p == q)
1024 return NULL;
1025 irq->IRQInfo1 = *p; p++;
1026 if (irq->IRQInfo1 & IRQ_INFO2_VALID) {
1027 if (p+2 > q)
1028 return NULL;
1029 irq->IRQInfo2 = (p[1]<<8) + p[0];
1030 p += 2;
1031 }
1032 return p;
1033}
1034
1035
1036
1037static int parse_cftable_entry(tuple_t *tuple,
1038 cistpl_cftable_entry_t *entry)
1039{
1040 u_char *p, *q, features;
1041
1042 p = tuple->TupleData;
1043 q = p + tuple->TupleDataLen;
1044 entry->index = *p & 0x3f;
1045 entry->flags = 0;
1046 if (*p & 0x40)
1047 entry->flags |= CISTPL_CFTABLE_DEFAULT;
1048 if (*p & 0x80) {
1049 if (++p == q)
1050 return -EINVAL;
1051 if (*p & 0x10)
1052 entry->flags |= CISTPL_CFTABLE_BVDS;
1053 if (*p & 0x20)
1054 entry->flags |= CISTPL_CFTABLE_WP;
1055 if (*p & 0x40)
1056 entry->flags |= CISTPL_CFTABLE_RDYBSY;
1057 if (*p & 0x80)
1058 entry->flags |= CISTPL_CFTABLE_MWAIT;
1059 entry->interface = *p & 0x0f;
1060 } else
1061 entry->interface = 0;
1062
1063
1064 if (++p == q)
1065 return -EINVAL;
1066 features = *p; p++;
1067
1068
1069 if ((features & 3) > 0) {
1070 p = parse_power(p, q, &entry->vcc);
1071 if (p == NULL)
1072 return -EINVAL;
1073 } else
1074 entry->vcc.present = 0;
1075 if ((features & 3) > 1) {
1076 p = parse_power(p, q, &entry->vpp1);
1077 if (p == NULL)
1078 return -EINVAL;
1079 } else
1080 entry->vpp1.present = 0;
1081 if ((features & 3) > 2) {
1082 p = parse_power(p, q, &entry->vpp2);
1083 if (p == NULL)
1084 return -EINVAL;
1085 } else
1086 entry->vpp2.present = 0;
1087
1088
1089 if (features & 0x04) {
1090 p = parse_timing(p, q, &entry->timing);
1091 if (p == NULL)
1092 return -EINVAL;
1093 } else {
1094 entry->timing.wait = 0;
1095 entry->timing.ready = 0;
1096 entry->timing.reserved = 0;
1097 }
1098
1099
1100 if (features & 0x08) {
1101 p = parse_io(p, q, &entry->io);
1102 if (p == NULL)
1103 return -EINVAL;
1104 } else
1105 entry->io.nwin = 0;
1106
1107
1108 if (features & 0x10) {
1109 p = parse_irq(p, q, &entry->irq);
1110 if (p == NULL)
1111 return -EINVAL;
1112 } else
1113 entry->irq.IRQInfo1 = 0;
1114
1115 switch (features & 0x60) {
1116 case 0x00:
1117 entry->mem.nwin = 0;
1118 break;
1119 case 0x20:
1120 entry->mem.nwin = 1;
1121 entry->mem.win[0].len = get_unaligned_le16(p) << 8;
1122 entry->mem.win[0].card_addr = 0;
1123 entry->mem.win[0].host_addr = 0;
1124 p += 2;
1125 if (p > q)
1126 return -EINVAL;
1127 break;
1128 case 0x40:
1129 entry->mem.nwin = 1;
1130 entry->mem.win[0].len = get_unaligned_le16(p) << 8;
1131 entry->mem.win[0].card_addr = get_unaligned_le16(p + 2) << 8;
1132 entry->mem.win[0].host_addr = 0;
1133 p += 4;
1134 if (p > q)
1135 return -EINVAL;
1136 break;
1137 case 0x60:
1138 p = parse_mem(p, q, &entry->mem);
1139 if (p == NULL)
1140 return -EINVAL;
1141 break;
1142 }
1143
1144
1145 if (features & 0x80) {
1146 if (p == q)
1147 return -EINVAL;
1148 entry->flags |= (*p << 8);
1149 while (*p & 0x80)
1150 if (++p == q)
1151 return -EINVAL;
1152 p++;
1153 }
1154
1155 entry->subtuples = q-p;
1156
1157 return 0;
1158}
1159
1160
1161
1162#ifdef CONFIG_CARDBUS
1163
1164static int parse_bar(tuple_t *tuple, cistpl_bar_t *bar)
1165{
1166 u_char *p;
1167 if (tuple->TupleDataLen < 6)
1168 return -EINVAL;
1169 p = (u_char *)tuple->TupleData;
1170 bar->attr = *p;
1171 p += 2;
1172 bar->size = get_unaligned_le32(p);
1173 return 0;
1174}
1175
1176static int parse_config_cb(tuple_t *tuple, cistpl_config_t *config)
1177{
1178 u_char *p;
1179
1180 p = (u_char *)tuple->TupleData;
1181 if ((*p != 3) || (tuple->TupleDataLen < 6))
1182 return -EINVAL;
1183 config->last_idx = *(++p);
1184 p++;
1185 config->base = get_unaligned_le32(p);
1186 config->subtuples = tuple->TupleDataLen - 6;
1187 return 0;
1188}
1189
1190static int parse_cftable_entry_cb(tuple_t *tuple,
1191 cistpl_cftable_entry_cb_t *entry)
1192{
1193 u_char *p, *q, features;
1194
1195 p = tuple->TupleData;
1196 q = p + tuple->TupleDataLen;
1197 entry->index = *p & 0x3f;
1198 entry->flags = 0;
1199 if (*p & 0x40)
1200 entry->flags |= CISTPL_CFTABLE_DEFAULT;
1201
1202
1203 if (++p == q)
1204 return -EINVAL;
1205 features = *p; p++;
1206
1207
1208 if ((features & 3) > 0) {
1209 p = parse_power(p, q, &entry->vcc);
1210 if (p == NULL)
1211 return -EINVAL;
1212 } else
1213 entry->vcc.present = 0;
1214 if ((features & 3) > 1) {
1215 p = parse_power(p, q, &entry->vpp1);
1216 if (p == NULL)
1217 return -EINVAL;
1218 } else
1219 entry->vpp1.present = 0;
1220 if ((features & 3) > 2) {
1221 p = parse_power(p, q, &entry->vpp2);
1222 if (p == NULL)
1223 return -EINVAL;
1224 } else
1225 entry->vpp2.present = 0;
1226
1227
1228 if (features & 0x08) {
1229 if (p == q)
1230 return -EINVAL;
1231 entry->io = *p; p++;
1232 } else
1233 entry->io = 0;
1234
1235
1236 if (features & 0x10) {
1237 p = parse_irq(p, q, &entry->irq);
1238 if (p == NULL)
1239 return -EINVAL;
1240 } else
1241 entry->irq.IRQInfo1 = 0;
1242
1243 if (features & 0x20) {
1244 if (p == q)
1245 return -EINVAL;
1246 entry->mem = *p; p++;
1247 } else
1248 entry->mem = 0;
1249
1250
1251 if (features & 0x80) {
1252 if (p == q)
1253 return -EINVAL;
1254 entry->flags |= (*p << 8);
1255 if (*p & 0x80) {
1256 if (++p == q)
1257 return -EINVAL;
1258 entry->flags |= (*p << 16);
1259 }
1260 while (*p & 0x80)
1261 if (++p == q)
1262 return -EINVAL;
1263 p++;
1264 }
1265
1266 entry->subtuples = q-p;
1267
1268 return 0;
1269}
1270
1271#endif
1272
1273
1274
1275static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo)
1276{
1277 u_char *p, *q;
1278 int n;
1279
1280 p = (u_char *)tuple->TupleData;
1281 q = p + tuple->TupleDataLen;
1282
1283 for (n = 0; n < CISTPL_MAX_DEVICES; n++) {
1284 if (p > q-6) break;
1285 geo->geo[n].buswidth = p[0];
1286 geo->geo[n].erase_block = 1 << (p[1]-1);
1287 geo->geo[n].read_block = 1 << (p[2]-1);
1288 geo->geo[n].write_block = 1 << (p[3]-1);
1289 geo->geo[n].partition = 1 << (p[4]-1);
1290 geo->geo[n].interleave = 1 << (p[5]-1);
1291 p += 6;
1292 }
1293 geo->ngeo = n;
1294 return 0;
1295}
1296
1297
1298
1299static int parse_vers_2(tuple_t *tuple, cistpl_vers_2_t *v2)
1300{
1301 u_char *p, *q;
1302
1303 if (tuple->TupleDataLen < 10)
1304 return -EINVAL;
1305
1306 p = tuple->TupleData;
1307 q = p + tuple->TupleDataLen;
1308
1309 v2->vers = p[0];
1310 v2->comply = p[1];
1311 v2->dindex = get_unaligned_le16(p +2 );
1312 v2->vspec8 = p[6];
1313 v2->vspec9 = p[7];
1314 v2->nhdr = p[8];
1315 p += 9;
1316 return parse_strings(p, q, 2, v2->str, &v2->vendor, NULL);
1317}
1318
1319
1320
1321static int parse_org(tuple_t *tuple, cistpl_org_t *org)
1322{
1323 u_char *p, *q;
1324 int i;
1325
1326 p = tuple->TupleData;
1327 q = p + tuple->TupleDataLen;
1328 if (p == q)
1329 return -EINVAL;
1330 org->data_org = *p;
1331 if (++p == q)
1332 return -EINVAL;
1333 for (i = 0; i < 30; i++) {
1334 org->desc[i] = *p;
1335 if (*p == '\0') break;
1336 if (++p == q)
1337 return -EINVAL;
1338 }
1339 return 0;
1340}
1341
1342
1343
1344static int parse_format(tuple_t *tuple, cistpl_format_t *fmt)
1345{
1346 u_char *p;
1347
1348 if (tuple->TupleDataLen < 10)
1349 return -EINVAL;
1350
1351 p = tuple->TupleData;
1352
1353 fmt->type = p[0];
1354 fmt->edc = p[1];
1355 fmt->offset = get_unaligned_le32(p + 2);
1356 fmt->length = get_unaligned_le32(p + 6);
1357
1358 return 0;
1359}
1360
1361
1362
1363int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse)
1364{
1365 int ret = 0;
1366
1367 if (tuple->TupleDataLen > tuple->TupleDataMax)
1368 return -EINVAL;
1369 switch (tuple->TupleCode) {
1370 case CISTPL_DEVICE:
1371 case CISTPL_DEVICE_A:
1372 ret = parse_device(tuple, &parse->device);
1373 break;
1374#ifdef CONFIG_CARDBUS
1375 case CISTPL_BAR:
1376 ret = parse_bar(tuple, &parse->bar);
1377 break;
1378 case CISTPL_CONFIG_CB:
1379 ret = parse_config_cb(tuple, &parse->config);
1380 break;
1381 case CISTPL_CFTABLE_ENTRY_CB:
1382 ret = parse_cftable_entry_cb(tuple, &parse->cftable_entry_cb);
1383 break;
1384#endif
1385 case CISTPL_CHECKSUM:
1386 ret = parse_checksum(tuple, &parse->checksum);
1387 break;
1388 case CISTPL_LONGLINK_A:
1389 case CISTPL_LONGLINK_C:
1390 ret = parse_longlink(tuple, &parse->longlink);
1391 break;
1392 case CISTPL_LONGLINK_MFC:
1393 ret = parse_longlink_mfc(tuple, &parse->longlink_mfc);
1394 break;
1395 case CISTPL_VERS_1:
1396 ret = parse_vers_1(tuple, &parse->version_1);
1397 break;
1398 case CISTPL_ALTSTR:
1399 ret = parse_altstr(tuple, &parse->altstr);
1400 break;
1401 case CISTPL_JEDEC_A:
1402 case CISTPL_JEDEC_C:
1403 ret = parse_jedec(tuple, &parse->jedec);
1404 break;
1405 case CISTPL_MANFID:
1406 ret = parse_manfid(tuple, &parse->manfid);
1407 break;
1408 case CISTPL_FUNCID:
1409 ret = parse_funcid(tuple, &parse->funcid);
1410 break;
1411 case CISTPL_FUNCE:
1412 ret = parse_funce(tuple, &parse->funce);
1413 break;
1414 case CISTPL_CONFIG:
1415 ret = parse_config(tuple, &parse->config);
1416 break;
1417 case CISTPL_CFTABLE_ENTRY:
1418 ret = parse_cftable_entry(tuple, &parse->cftable_entry);
1419 break;
1420 case CISTPL_DEVICE_GEO:
1421 case CISTPL_DEVICE_GEO_A:
1422 ret = parse_device_geo(tuple, &parse->device_geo);
1423 break;
1424 case CISTPL_VERS_2:
1425 ret = parse_vers_2(tuple, &parse->vers_2);
1426 break;
1427 case CISTPL_ORG:
1428 ret = parse_org(tuple, &parse->org);
1429 break;
1430 case CISTPL_FORMAT:
1431 case CISTPL_FORMAT_A:
1432 ret = parse_format(tuple, &parse->format);
1433 break;
1434 case CISTPL_NO_LINK:
1435 case CISTPL_LINKTARGET:
1436 ret = 0;
1437 break;
1438 default:
1439 ret = -EINVAL;
1440 break;
1441 }
1442 if (ret)
1443 __cs_dbg(0, "parse_tuple failed %d\n", ret);
1444 return ret;
1445}
1446EXPORT_SYMBOL(pcmcia_parse_tuple);
1447
1448
1449
1450
1451
1452
1453
1454int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, void *parse)
1455{
1456 tuple_t tuple;
1457 cisdata_t *buf;
1458 int ret;
1459
1460 buf = kmalloc(256, GFP_KERNEL);
1461 if (buf == NULL) {
1462 dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n");
1463 return -ENOMEM;
1464 }
1465 tuple.DesiredTuple = code;
1466 tuple.Attributes = 0;
1467 if (function == BIND_FN_ALL)
1468 tuple.Attributes = TUPLE_RETURN_COMMON;
1469 ret = pccard_get_first_tuple(s, function, &tuple);
1470 if (ret != 0)
1471 goto done;
1472 tuple.TupleData = buf;
1473 tuple.TupleOffset = 0;
1474 tuple.TupleDataMax = 255;
1475 ret = pccard_get_tuple_data(s, &tuple);
1476 if (ret != 0)
1477 goto done;
1478 ret = pcmcia_parse_tuple(&tuple, parse);
1479done:
1480 kfree(buf);
1481 return ret;
1482}
1483EXPORT_SYMBOL(pccard_read_tuple);
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info)
1496{
1497 tuple_t *tuple;
1498 cisparse_t *p;
1499 unsigned int count = 0;
1500 int ret, reserved, dev_ok = 0, ident_ok = 0;
1501
1502 if (!s)
1503 return -EINVAL;
1504
1505 tuple = kmalloc(sizeof(*tuple), GFP_KERNEL);
1506 if (tuple == NULL) {
1507 dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n");
1508 return -ENOMEM;
1509 }
1510 p = kmalloc(sizeof(*p), GFP_KERNEL);
1511 if (p == NULL) {
1512 kfree(tuple);
1513 dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n");
1514 return -ENOMEM;
1515 }
1516
1517 count = reserved = 0;
1518 tuple->DesiredTuple = RETURN_FIRST_TUPLE;
1519 tuple->Attributes = TUPLE_RETURN_COMMON;
1520 ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple);
1521 if (ret != 0)
1522 goto done;
1523
1524
1525
1526 if ((tuple->TupleCode == CISTPL_DEVICE) ||
1527 (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p) == 0) ||
1528 (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p) == 0))
1529 dev_ok++;
1530
1531
1532
1533
1534 if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) ||
1535 (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) ||
1536 (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC))
1537 ident_ok++;
1538
1539 if (!dev_ok && !ident_ok)
1540 goto done;
1541
1542 for (count = 1; count < MAX_TUPLES; count++) {
1543 ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple);
1544 if (ret != 0)
1545 break;
1546 if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) ||
1547 ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) ||
1548 ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff)))
1549 reserved++;
1550 }
1551 if ((count == MAX_TUPLES) || (reserved > 5) ||
1552 ((!dev_ok || !ident_ok) && (count > 10)))
1553 count = 0;
1554
1555done:
1556 if (info)
1557 *info = count;
1558 kfree(tuple);
1559 kfree(p);
1560 return 0;
1561}
1562EXPORT_SYMBOL(pccard_validate_cis);
1563
