aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/hostap/hostap_cs.c
blob: 3210c99694e6da258b05abf67693b48b5dad3b52 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
#define PRISM2_PCCARD

#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/if.h>
#include <linux/wait.h>
#include <linux/timer.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/workqueue.h>
#include <linux/wireless.h>
#include <net/iw_handler.h>

#include <pcmcia/cs_types.h>
#include <pcmcia/cs.h>
#include <pcmcia/cistpl.h>
#include <pcmcia/cisreg.h>
#include <pcmcia/ds.h>

#include <asm/io.h>

#include "hostap_wlan.h"


static char *version = PRISM2_VERSION " (Jouni Malinen <jkmaline@cc.hut.fi>)";
static dev_info_t dev_info = "hostap_cs";
static dev_link_t *dev_list = NULL;

MODULE_AUTHOR("Jouni Malinen");
MODULE_DESCRIPTION("Support for Intersil Prism2-based 802.11 wireless LAN "
		   "cards (PC Card).");
MODULE_SUPPORTED_DEVICE("Intersil Prism2-based WLAN cards (PC Card)");
MODULE_LICENSE("GPL");
MODULE_VERSION(PRISM2_VERSION);


static int ignore_cis_vcc;
module_param(ignore_cis_vcc, int, 0444);
MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry");


#ifdef PRISM2_IO_DEBUG

static inline void hfa384x_outb_debug(struct net_device *dev, int a, u8 v)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;

	iface = netdev_priv(dev);
	local = iface->local;
	spin_lock_irqsave(&local->lock, flags);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTB, a, v);
	outb(v, dev->base_addr + a);
	spin_unlock_irqrestore(&local->lock, flags);
}

static inline u8 hfa384x_inb_debug(struct net_device *dev, int a)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;
	u8 v;

	iface = netdev_priv(dev);
	local = iface->local;
	spin_lock_irqsave(&local->lock, flags);
	v = inb(dev->base_addr + a);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INB, a, v);
	spin_unlock_irqrestore(&local->lock, flags);
	return v;
}

static inline void hfa384x_outw_debug(struct net_device *dev, int a, u16 v)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;

	iface = netdev_priv(dev);
	local = iface->local;
	spin_lock_irqsave(&local->lock, flags);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTW, a, v);
	outw(v, dev->base_addr + a);
	spin_unlock_irqrestore(&local->lock, flags);
}

static inline u16 hfa384x_inw_debug(struct net_device *dev, int a)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;
	u16 v;

	iface = netdev_priv(dev);
	local = iface->local;
	spin_lock_irqsave(&local->lock, flags);
	v = inw(dev->base_addr + a);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INW, a, v);
	spin_unlock_irqrestore(&local->lock, flags);
	return v;
}

static inline void hfa384x_outsw_debug(struct net_device *dev, int a,
				       u8 *buf, int wc)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;

	iface = netdev_priv(dev);
	local = iface->local;
	spin_lock_irqsave(&local->lock, flags);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_OUTSW, a, wc);
	outsw(dev->base_addr + a, buf, wc);
	spin_unlock_irqrestore(&local->lock, flags);
}

static inline void hfa384x_insw_debug(struct net_device *dev, int a,
				      u8 *buf, int wc)
{
	struct hostap_interface *iface;
	local_info_t *local;
	unsigned long flags;

	iface = netdev_priv(dev);
	local = iface->local;
	spin_lock_irqsave(&local->lock, flags);
	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INSW, a, wc);
	insw(dev->base_addr + a, buf, wc);
	spin_unlock_irqrestore(&local->lock, flags);
}

#define HFA384X_OUTB(v,a) hfa384x_outb_debug(dev, (a), (v))
#define HFA384X_INB(a) hfa384x_inb_debug(dev, (a))
#define HFA384X_OUTW(v,a) hfa384x_outw_debug(dev, (a), (v))
#define HFA384X_INW(a) hfa384x_inw_debug(dev, (a))
#define HFA384X_OUTSW(a, buf, wc) hfa384x_outsw_debug(dev, (a), (buf), (wc))
#define HFA384X_INSW(a, buf, wc) hfa384x_insw_debug(dev, (a), (buf), (wc))

#else /* PRISM2_IO_DEBUG */

#define HFA384X_OUTB(v,a) outb((v), dev->base_addr + (a))
#define HFA384X_INB(a) inb(dev->base_addr + (a))
#define HFA384X_OUTW(v,a) outw((v), dev->base_addr + (a))
#define HFA384X_INW(a) inw(dev->base_addr + (a))
#define HFA384X_INSW(a, buf, wc) insw(dev->base_addr + (a), buf, wc)
#define HFA384X_OUTSW(a, buf, wc) outsw(dev->base_addr + (a), buf, wc)

#endif /* PRISM2_IO_DEBUG */


static int hfa384x_from_bap(struct net_device *dev, u16 bap, void *buf,
			    int len)
{
	u16 d_off;
	u16 *pos;

	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
	pos = (u16 *) buf;

	if (len / 2)
		HFA384X_INSW(d_off, buf, len / 2);
	pos += len / 2;

	if (len & 1)
		*((char *) pos) = HFA384X_INB(d_off);

	return 0;
}


static int hfa384x_to_bap(struct net_device *dev, u16 bap, void *buf, int len)
{
	u16 d_off;
	u16 *pos;

	d_off = (bap == 1) ? HFA384X_DATA1_OFF : HFA384X_DATA0_OFF;
	pos = (u16 *) buf;

	if (len / 2)
		HFA384X_OUTSW(d_off, buf, len / 2);
	pos += len / 2;

	if (len & 1)
		HFA384X_OUTB(*((char *) pos), d_off);

	return 0;
}


/* FIX: This might change at some point.. */
#include "hostap_hw.c"



static void prism2_detach(dev_link_t *link);
static void prism2_release(u_long arg);
static int prism2_event(event_t event, int priority,
			event_callback_args_t *args);


static int prism2_pccard_card_present(local_info_t *local)
{
	if (local->link != NULL &&
	    ((local->link->state & (DEV_PRESENT | DEV_CONFIG)) ==
	     (DEV_PRESENT | DEV_CONFIG)))
		return 1;
	return 0;
}


/*
 * SanDisk CompactFlash WLAN Flashcard - Product Manual v1.0
 * Document No. 20-10-00058, January 2004
 * http://www.sandisk.com/pdf/industrial/ProdManualCFWLANv1.0.pdf
 */
#define SANDISK_WLAN_ACTIVATION_OFF 0x40
#define SANDISK_HCR_OFF 0x42


static void sandisk_set_iobase(local_info_t *local)
{
	int res;
	conf_reg_t reg;

	reg.Function = 0;
	reg.Action = CS_WRITE;
	reg.Offset = 0x10; /* 0x3f0 IO base 1 */
	reg.Value = local->link->io.BasePort1 & 0x00ff;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 0 -"
		       " res=%d\n", res);
	}
	udelay(10);

	reg.Function = 0;
	reg.Action = CS_WRITE;
	reg.Offset = 0x12; /* 0x3f2 IO base 2 */
	reg.Value = (local->link->io.BasePort1 & 0xff00) >> 8;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "Prism3 SanDisk - failed to set I/O base 1 -"
		       " res=%d\n", res);
	}
}


static void sandisk_write_hcr(local_info_t *local, int hcr)
{
	struct net_device *dev = local->dev;
	int i;

	HFA384X_OUTB(0x80, SANDISK_WLAN_ACTIVATION_OFF);
	udelay(50);
	for (i = 0; i < 10; i++) {
		HFA384X_OUTB(hcr, SANDISK_HCR_OFF);
	}
	udelay(55);
	HFA384X_OUTB(0x45, SANDISK_WLAN_ACTIVATION_OFF);
}


static int sandisk_enable_wireless(struct net_device *dev)
{
	int res, ret = 0;
	conf_reg_t reg;
	struct hostap_interface *iface = dev->priv;
	local_info_t *local = iface->local;
	tuple_t tuple;
	cisparse_t *parse = NULL;
	u_char buf[64];

	if (local->link->io.NumPorts1 < 0x42) {
		/* Not enough ports to be SanDisk multi-function card */
		ret = -ENODEV;
		goto done;
	}

	parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
	if (parse == NULL) {
		ret = -ENOMEM;
		goto done;
	}

	tuple.DesiredTuple = CISTPL_MANFID;
	tuple.Attributes = TUPLE_RETURN_COMMON;
	tuple.TupleData = buf;
	tuple.TupleDataMax = sizeof(buf);
	tuple.TupleOffset = 0;
	if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
	    pcmcia_get_tuple_data(local->link->handle, &tuple) ||
	    pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
	    parse->manfid.manf != 0xd601 || parse->manfid.card != 0x0101) {
		/* No SanDisk manfid found */
		ret = -ENODEV;
		goto done;
	}

	tuple.DesiredTuple = CISTPL_LONGLINK_MFC;
	if (pcmcia_get_first_tuple(local->link->handle, &tuple) ||
	    pcmcia_get_tuple_data(local->link->handle, &tuple) ||
	    pcmcia_parse_tuple(local->link->handle, &tuple, parse) ||
		parse->longlink_mfc.nfn < 2) {
		/* No multi-function links found */
		ret = -ENODEV;
		goto done;
	}

	printk(KERN_DEBUG "%s: Multi-function SanDisk ConnectPlus detected"
	       " - using vendor-specific initialization\n", dev->name);
	local->sandisk_connectplus = 1;

	reg.Function = 0;
	reg.Action = CS_WRITE;
	reg.Offset = CISREG_COR;
	reg.Value = COR_SOFT_RESET;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
		       dev->name, res);
		goto done;
	}
	mdelay(5);

	reg.Function = 0;
	reg.Action = CS_WRITE;
	reg.Offset = CISREG_COR;
	/*
	 * Do not enable interrupts here to avoid some bogus events. Interrupts
	 * will be enabled during the first cor_sreset call.
	 */
	reg.Value = COR_LEVEL_REQ | 0x8 | COR_ADDR_DECODE | COR_FUNC_ENA;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "%s: SanDisk - COR sreset failed (%d)\n",
		       dev->name, res);
		goto done;
	}
	mdelay(5);

	sandisk_set_iobase(local);

	HFA384X_OUTB(0xc5, SANDISK_WLAN_ACTIVATION_OFF);
	udelay(10);
	HFA384X_OUTB(0x4b, SANDISK_WLAN_ACTIVATION_OFF);
	udelay(10);

done:
	kfree(parse);
	return ret;
}


static void prism2_pccard_cor_sreset(local_info_t *local)
{
	int res;
	conf_reg_t reg;

	if (!prism2_pccard_card_present(local))
	       return;

	reg.Function = 0;
	reg.Action = CS_READ;
	reg.Offset = CISREG_COR;
	reg.Value = 0;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 1 (%d)\n",
		       res);
		return;
	}
	printk(KERN_DEBUG "prism2_pccard_cor_sreset: original COR %02x\n",
	       reg.Value);

	reg.Action = CS_WRITE;
	reg.Value |= COR_SOFT_RESET;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 2 (%d)\n",
		       res);
		return;
	}

	mdelay(local->sandisk_connectplus ? 5 : 2);

	reg.Value &= ~COR_SOFT_RESET;
	if (local->sandisk_connectplus)
		reg.Value |= COR_IREQ_ENA;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_cor_sreset failed 3 (%d)\n",
		       res);
		return;
	}

	mdelay(local->sandisk_connectplus ? 5 : 2);

	if (local->sandisk_connectplus)
		sandisk_set_iobase(local);
}


static void prism2_pccard_genesis_reset(local_info_t *local, int hcr)
{
	int res;
	conf_reg_t reg;
	int old_cor;

	if (!prism2_pccard_card_present(local))
	       return;

	if (local->sandisk_connectplus) {
		sandisk_write_hcr(local, hcr);
		return;
	}

	reg.Function = 0;
	reg.Action = CS_READ;
	reg.Offset = CISREG_COR;
	reg.Value = 0;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 1 "
		       "(%d)\n", res);
		return;
	}
	printk(KERN_DEBUG "prism2_pccard_genesis_sreset: original COR %02x\n",
	       reg.Value);
	old_cor = reg.Value;

	reg.Action = CS_WRITE;
	reg.Value |= COR_SOFT_RESET;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 2 "
		       "(%d)\n", res);
		return;
	}

	mdelay(10);

	/* Setup Genesis mode */
	reg.Action = CS_WRITE;
	reg.Value = hcr;
	reg.Offset = CISREG_CCSR;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 3 "
		       "(%d)\n", res);
		return;
	}
	mdelay(10);

	reg.Action = CS_WRITE;
	reg.Offset = CISREG_COR;
	reg.Value = old_cor & ~COR_SOFT_RESET;
	res = pcmcia_access_configuration_register(local->link->handle, &reg);
	if (res != CS_SUCCESS) {
		printk(KERN_DEBUG "prism2_pccard_genesis_sreset failed 4 "
		       "(%d)\n", res);
		return;
	}

	mdelay(10);
}


static int prism2_pccard_dev_open(local_info_t *local)
{
	local->link->open++;
	return 0;
}


static int prism2_pccard_dev_close(local_info_t *local)
{
	if (local == NULL || local->link == NULL)
		return 1;

	if (!local->link->open) {
		printk(KERN_WARNING "%s: prism2_pccard_dev_close(): "
		       "link not open?!\n", local->dev->name);
		return 1;
	}

	local->link->open--;

	return 0;
}


static struct prism2_helper_functions prism2_pccard_funcs =
{
	.card_present	= prism2_pccard_card_present,
	.cor_sreset	= prism2_pccard_cor_sreset,
	.dev_open	= prism2_pccard_dev_open,
	.dev_close	= prism2_pccard_dev_close,
	.genesis_reset	= prism2_pccard_genesis_reset,
	.hw_type	= HOSTAP_HW_PCCARD,
};


/* allocate local data and register with CardServices
 * initialize dev_link structure, but do not configure the card yet */
static dev_link_t *prism2_attach(void)
{
	dev_link_t *link;
	client_reg_t client_reg;
	int ret;

	link = kmalloc(sizeof(dev_link_t), GFP_KERNEL);
	if (link == NULL)
		return NULL;

	memset(link, 0, sizeof(dev_link_t));

	PDEBUG(DEBUG_HW, "%s: setting Vcc=33 (constant)\n", dev_info);
	link->conf.Vcc = 33;
	link->conf.IntType = INT_MEMORY_AND_IO;

	/* register with CardServices */
	link->next = dev_list;
	dev_list = link;
	client_reg.dev_info = &dev_info;
	client_reg.Version = 0x0210;
	client_reg.event_callback_args.client_data = link;
	ret = pcmcia_register_client(&link->handle, &client_reg);
	if (ret != CS_SUCCESS) {
		cs_error(link->handle, RegisterClient, ret);
		prism2_detach(link);
		return NULL;
	}
	return link;
}


static void prism2_detach(dev_link_t *link)
{
	dev_link_t **linkp;

	PDEBUG(DEBUG_FLOW, "prism2_detach\n");

	for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
		if (*linkp == link)
			break;
	if (*linkp == NULL) {
		printk(KERN_WARNING "%s: Attempt to detach non-existing "
		       "PCMCIA client\n", dev_info);
		return;
	}

	if (link->state & DEV_CONFIG) {
		prism2_release((u_long)link);
	}

	if (link->handle) {
		int res = pcmcia_deregister_client(link->handle);
		if (res) {
			printk("CardService(DeregisterClient) => %d\n", res);
			cs_error(link->handle, DeregisterClient, res);
		}
	}

	*linkp = link->next;
	/* release net devices */
	if (link->priv) {
		prism2_free_local_data((struct net_device *) link->priv);

	}
	kfree(link);
}


#define CS_CHECK(fn, ret) \
do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)

#define CFG_CHECK2(fn, retf) \
do { int ret = (retf); \
if (ret != 0) { \
	PDEBUG(DEBUG_EXTRA, "CardServices(" #fn ") returned %d\n", ret); \
	cs_error(link->handle, fn, ret); \
	goto next_entry; \
} \
} while (0)


/* run after a CARD_INSERTION event is received to configure the PCMCIA
 * socket and make the device available to the system */
static int prism2_config(dev_link_t *link)
{
	struct net_device *dev;
	struct hostap_interface *iface;
	local_info_t *local;
	int ret = 1;
	tuple_t tuple;
	cisparse_t *parse;
	int last_fn, last_ret;
	u_char buf[64];
	config_info_t conf;
	cistpl_cftable_entry_t dflt = { 0 };

	PDEBUG(DEBUG_FLOW, "prism2_config()\n");

	parse = kmalloc(sizeof(cisparse_t), GFP_KERNEL);
	if (parse == NULL) {
		ret = -ENOMEM;
		goto failed;
	}

	tuple.DesiredTuple = CISTPL_CONFIG;
	tuple.Attributes = 0;
	tuple.TupleData = buf;
	tuple.TupleDataMax = sizeof(buf);
	tuple.TupleOffset = 0;
	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
	CS_CHECK(GetTupleData, pcmcia_get_tuple_data(link->handle, &tuple));
	CS_CHECK(ParseTuple, pcmcia_parse_tuple(link->handle, &tuple, parse));
	link->conf.ConfigBase = parse->config.base;
	link->conf.Present = parse->config.rmask[0];

	CS_CHECK(GetConfigurationInfo,
		 pcmcia_get_configuration_info(link->handle, &conf));
	PDEBUG(DEBUG_HW, "%s: %s Vcc=%d (from config)\n", dev_info,
	       ignore_cis_vcc ? "ignoring" : "setting", conf.Vcc);
	link->conf.Vcc = conf.Vcc;

	/* Look for an appropriate configuration table entry in the CIS */
	tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
	CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(link->handle, &tuple));
	for (;;) {
		cistpl_cftable_entry_t *cfg = &(parse->cftable_entry);
		CFG_CHECK2(GetTupleData,
			   pcmcia_get_tuple_data(link->handle, &tuple));
		CFG_CHECK2(ParseTuple,
			   pcmcia_parse_tuple(link->handle, &tuple, parse));

		if (cfg->flags & CISTPL_CFTABLE_DEFAULT)
			dflt = *cfg;
		if (cfg->index == 0)
			goto next_entry;
		link->conf.ConfigIndex = cfg->index;
		PDEBUG(DEBUG_EXTRA, "Checking CFTABLE_ENTRY 0x%02X "
		       "(default 0x%02X)\n", cfg->index, dflt.index);

		/* Does this card need audio output? */
		if (cfg->flags & CISTPL_CFTABLE_AUDIO) {
			link->conf.Attributes |= CONF_ENABLE_SPKR;
			link->conf.Status = CCSR_AUDIO_ENA;
		}

		/* Use power settings for Vcc and Vpp if present */
		/*  Note that the CIS values need to be rescaled */
		if (cfg->vcc.present & (1 << CISTPL_POWER_VNOM)) {
			if (conf.Vcc != cfg->vcc.param[CISTPL_POWER_VNOM] /
			    10000 && !ignore_cis_vcc) {
				PDEBUG(DEBUG_EXTRA, "  Vcc mismatch - skipping"
				       " this entry\n");
				goto next_entry;
			}
		} else if (dflt.vcc.present & (1 << CISTPL_POWER_VNOM)) {
			if (conf.Vcc != dflt.vcc.param[CISTPL_POWER_VNOM] /
			    10000 && !ignore_cis_vcc) {
				PDEBUG(DEBUG_EXTRA, "  Vcc (default) mismatch "
				       "- skipping this entry\n");
				goto next_entry;
			}
		}

		if (cfg->vpp1.present & (1 << CISTPL_POWER_VNOM))
			link->conf.Vpp1 = link->conf.Vpp2 =
				cfg->vpp1.param[CISTPL_POWER_VNOM] / 10000;
		else if (dflt.vpp1.present & (1 << CISTPL_POWER_VNOM))
			link->conf.Vpp1 = link->conf.Vpp2 =
				dflt.vpp1.param[CISTPL_POWER_VNOM] / 10000;

		/* Do we need to allocate an interrupt? */
		if (cfg->irq.IRQInfo1 || dflt.irq.IRQInfo1)
			link->conf.Attributes |= CONF_ENABLE_IRQ;
		else if (!(link->conf.Attributes & CONF_ENABLE_IRQ)) {
			/* At least Compaq WL200 does not have IRQInfo1 set,
			 * but it does not work without interrupts.. */
			printk("Config has no IRQ info, but trying to enable "
			       "IRQ anyway..\n");
			link->conf.Attributes |= CONF_ENABLE_IRQ;
		}

		/* IO window settings */
		PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d "
		       "dflt.io.nwin=%d\n",
		       cfg->io.nwin, dflt.io.nwin);
		link->io.NumPorts1 = link->io.NumPorts2 = 0;
		if ((cfg->io.nwin > 0) || (dflt.io.nwin > 0)) {
			cistpl_io_t *io = (cfg->io.nwin) ? &cfg->io : &dflt.io;
			link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
			PDEBUG(DEBUG_EXTRA, "io->flags = 0x%04X, "
			       "io.base=0x%04x, len=%d\n", io->flags,
			       io->win[0].base, io->win[0].len);
			if (!(io->flags & CISTPL_IO_8BIT))
				link->io.Attributes1 = IO_DATA_PATH_WIDTH_16;
			if (!(io->flags & CISTPL_IO_16BIT))
				link->io.Attributes1 = IO_DATA_PATH_WIDTH_8;
			link->io.IOAddrLines = io->flags &
				CISTPL_IO_LINES_MASK;
			link->io.BasePort1 = io->win[0].base;
			link->io.NumPorts1 = io->win[0].len;
			if (io->nwin > 1) {
				link->io.Attributes2 = link->io.Attributes1;
				link->io.BasePort2 = io->win[1].base;
				link->io.NumPorts2 = io->win[1].len;
			}
		}

		/* This reserves IO space but doesn't actually enable it */
		CFG_CHECK2(RequestIO,
			   pcmcia_request_io(link->handle, &link->io));

		/* This configuration table entry is OK */
		break;

	next_entry:
		CS_CHECK(GetNextTuple,
			 pcmcia_get_next_tuple(link->handle, &tuple));
	}

	/* Need to allocate net_device before requesting IRQ handler */
	dev = prism2_init_local_data(&prism2_pccard_funcs, 0,
				     &handle_to_dev(link->handle));
	if (dev == NULL)
		goto failed;
	link->priv = dev;

	/*
	 * Allocate an interrupt line.  Note that this does not assign a
	 * handler to the interrupt, unless the 'Handler' member of the
	 * irq structure is initialized.
	 */
	if (link->conf.Attributes & CONF_ENABLE_IRQ) {
		link->irq.Attributes = IRQ_TYPE_EXCLUSIVE | IRQ_HANDLE_PRESENT;
		link->irq.IRQInfo1 = IRQ_LEVEL_ID;
		link->irq.Handler = prism2_interrupt;
		link->irq.Instance = dev;
		CS_CHECK(RequestIRQ,
			 pcmcia_request_irq(link->handle, &link->irq));
	}

	/*
	 * This actually configures the PCMCIA socket -- setting up
	 * the I/O windows and the interrupt mapping, and putting the
	 * card and host interface into "Memory and IO" mode.
	 */
	CS_CHECK(RequestConfiguration,
		 pcmcia_request_configuration(link->handle, &link->conf));

	dev->irq = link->irq.AssignedIRQ;
	dev->base_addr = link->io.BasePort1;

	/* Finally, report what we've done */
	printk(KERN_INFO "%s: index 0x%02x: Vcc %d.%d",
	       dev_info, link->conf.ConfigIndex,
	       link->conf.Vcc / 10, link->conf.Vcc % 10);
	if (link->conf.Vpp1)
		printk(", Vpp %d.%d", link->conf.Vpp1 / 10,
		       link->conf.Vpp1 % 10);
	if (link->conf.Attributes & CONF_ENABLE_IRQ)
		printk(", irq %d", link->irq.AssignedIRQ);
	if (link->io.NumPorts1)
		printk(", io 0x%04x-0x%04x", link->io.BasePort1,
		       link->io.BasePort1+link->io.NumPorts1-1);
	if (link->io.NumPorts2)
		printk(" & 0x%04x-0x%04x", link->io.BasePort2,
		       link->io.BasePort2+link->io.NumPorts2-1);
	printk("\n");

	link->state |= DEV_CONFIG;
	link->state &= ~DEV_CONFIG_PENDING;

	iface = netdev_priv(dev);
	local = iface->local;
	local->link = link;
	strcpy(local->node.dev_name, dev->name);
	link->dev = &local->node;

	local->shutdown = 0;

	sandisk_enable_wireless(dev);

	ret = prism2_hw_config(dev, 1);
	if (!ret) {
		ret = hostap_hw_ready(dev);
		if (ret == 0 && local->ddev)
			strcpy(local->node.dev_name, local->ddev->name);
	}
	kfree(parse);
	return ret;

 cs_failed:
	cs_error(link->handle, last_fn, last_ret);

 failed:
	kfree(parse);
	prism2_release((u_long)link);
	return ret;
}


static void prism2_release(u_long arg)
{
	dev_link_t *link = (dev_link_t *)arg;

	PDEBUG(DEBUG_FLOW, "prism2_release\n");

	if (link->priv) {
		struct net_device *dev = link->priv;
		struct hostap_interface *iface;

		iface = netdev_priv(dev);
		if (link->state & DEV_CONFIG)
			prism2_hw_shutdown(dev, 0);
		iface->local->shutdown = 1;
	}

	if (link->win)
		pcmcia_release_window(link->win);
	pcmcia_release_configuration(link->handle);
	if (link->io.NumPorts1)
		pcmcia_release_io(link->handle, &link->io);
	if (link->irq.AssignedIRQ)
		pcmcia_release_irq(link->handle, &link->irq);

	link->state &= ~DEV_CONFIG;

	PDEBUG(DEBUG_FLOW, "release - done\n");
}


static int prism2_event(event_t event, int priority,
			event_callback_args_t *args)
{
	dev_link_t *link = args->client_data;
	struct net_device *dev = (struct net_device *) link->priv;

	switch (event) {
	case CS_EVENT_CARD_INSERTION:
		PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_INSERTION\n", dev_info);
		link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
		if (prism2_config(link)) {
			PDEBUG(DEBUG_EXTRA, "prism2_config() failed\n");
		}
		break;

	case CS_EVENT_CARD_REMOVAL:
		PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_REMOVAL\n", dev_info);
		link->state &= ~DEV_PRESENT;
		if (link->state & DEV_CONFIG) {
			netif_stop_queue(dev);
			netif_device_detach(dev);
			prism2_release((u_long) link);
		}
		break;

	case CS_EVENT_PM_SUSPEND:
		PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_SUSPEND\n", dev_info);
		link->state |= DEV_SUSPEND;
		/* fall through */

	case CS_EVENT_RESET_PHYSICAL:
		PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_RESET_PHYSICAL\n", dev_info);
		if (link->state & DEV_CONFIG) {
			if (link->open) {
				netif_stop_queue(dev);
				netif_device_detach(dev);
			}
			prism2_suspend(dev);
			pcmcia_release_configuration(link->handle);
		}
		break;

	case CS_EVENT_PM_RESUME:
		PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_PM_RESUME\n", dev_info);
		link->state &= ~DEV_SUSPEND;
		/* fall through */

	case CS_EVENT_CARD_RESET:
		PDEBUG(DEBUG_EXTRA, "%s: CS_EVENT_CARD_RESET\n", dev_info);
		if (link->state & DEV_CONFIG) {
			pcmcia_request_configuration(link->handle,
						     &link->conf);
			prism2_hw_shutdown(dev, 1);
			prism2_hw_config(dev, link->open ? 0 : 1);
			if (link->open) {
				netif_device_attach(dev);
				netif_start_queue(dev);
			}
		}
		break;

	default:
		PDEBUG(DEBUG_EXTRA, "%s: prism2_event() - unknown event %d\n",
		       dev_info, event);
		break;
	}
	return 0;
}


static struct pcmcia_device_id hostap_cs_ids[] = {
	PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7100),
	PCMCIA_DEVICE_MANF_CARD(0x000b, 0x7300),
	PCMCIA_DEVICE_MANF_CARD(0x0101, 0x0777),
	PCMCIA_DEVICE_MANF_CARD(0x0126, 0x8000),
	PCMCIA_DEVICE_MANF_CARD(0x0138, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0x0156, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0x0250, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0x026f, 0x030b),
	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1612),
	PCMCIA_DEVICE_MANF_CARD(0x0274, 0x1613),
	PCMCIA_DEVICE_MANF_CARD(0x028a, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0x02aa, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0x02d2, 0x0001),
	PCMCIA_DEVICE_MANF_CARD(0x50c2, 0x0001),
	PCMCIA_DEVICE_MANF_CARD(0x50c2, 0x7300),
	PCMCIA_DEVICE_MANF_CARD(0xc00f, 0x0000),
	PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0002),
	PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0005),
	PCMCIA_DEVICE_MANF_CARD(0xd601, 0x0010),
	PCMCIA_MFC_DEVICE_PROD_ID12(0, "SanDisk", "ConnectPlus",
				    0x7a954bd9, 0x74be00c6),
	PCMCIA_DEVICE_PROD_ID1234(
		"Intersil", "PRISM 2_5 PCMCIA ADAPTER",	"ISL37300P",
		"Eval-RevA",
		0x4b801a17, 0x6345a0bf, 0xc9049a39, 0xc23adc0e),
	PCMCIA_DEVICE_PROD_ID123(
		"Addtron", "AWP-100 Wireless PCMCIA", "Version 01.02",
		0xe6ec52ce, 0x08649af2, 0x4b74baa0),
	PCMCIA_DEVICE_PROD_ID123(
		"D", "Link DWL-650 11Mbps WLAN Card", "Version 01.02",
		0x71b18589, 0xb6f1b0ab, 0x4b74baa0),
	PCMCIA_DEVICE_PROD_ID123(
		"Instant Wireless ", " Network PC CARD", "Version 01.02",
		0x11d901af, 0x6e9bd926, 0x4b74baa0),
	PCMCIA_DEVICE_PROD_ID123(
		"SMC", "SMC2632W", "Version 01.02",
		0xc4f8b18b, 0x474a1f2a, 0x4b74baa0),
	PCMCIA_DEVICE_PROD_ID12("BUFFALO", "WLI-CF-S11G", 
				0x1b01a57b, 0xefd5102a),
	PCMCIA_DEVICE_PROD_ID12("Compaq", "WL200_11Mbps_Wireless_PCI_Card",
				0x54f7c49c, 0x15a75e5b),
	PCMCIA_DEVICE_PROD_ID12("INTERSIL", "HFA384x/IEEE",
				0x74c5e40d, 0xdb472a18),
	PCMCIA_DEVICE_PROD_ID12("Linksys", "Wireless CompactFlash Card",
				0x0733cc81, 0x0c52f395),
	PCMCIA_DEVICE_PROD_ID12(
		"ZoomAir 11Mbps High", "Rate wireless Networking",
		0x273fe3db, 0x32a1eaee),
	PCMCIA_DEVICE_NULL
};
MODULE_DEVICE_TABLE(pcmcia, hostap_cs_ids);


static struct pcmcia_driver hostap_driver = {
	.drv		= {
		.name	= "hostap_cs",
	},
	.attach		= prism2_attach,
	.detach		= prism2_detach,
	.owner		= THIS_MODULE,
	.event		= prism2_event,
	.id_table	= hostap_cs_ids,
};

static int __init init_prism2_pccard(void)
{
	printk(KERN_INFO "%s: %s\n", dev_info, version);
	return pcmcia_register_driver(&hostap_driver);
}

static void __exit exit_prism2_pccard(void)
{
	pcmcia_unregister_driver(&hostap_driver);
	printk(KERN_INFO "%s: Driver unloaded\n", dev_info);
}


module_init(init_prism2_pccard);
module_exit(exit_prism2_pccard);