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
|
/*
* Copyright (c) 2000,2001 Jonathan Chen.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Cardbus Bus Driver
*
* much of the bus code was stolen directly from sys/pci/pci.c
* (Copyright (c) 1997, Stefan Esser <se@freebsd.org>)
*
* Written by Jonathan Chen <jon@freebsd.org>
*/
#define CARDBUS_DEBUG
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#include <sys/pciio.h>
#include <dev/cardbus/cardbusreg.h>
#include <dev/cardbus/cardbusvar.h>
#include <dev/cardbus/cardbus_cis.h>
#include "power_if.h"
#include "card_if.h"
#include "pcib_if.h"
#if defined CARDBUS_DEBUG
#define STATIC
#define DPRINTF(a) printf a
#define DEVPRINTF(x) device_printf x
#else
#define STATIC static
#define DPRINTF(a)
#define DEVPRINTF(x)
#endif
#if !defined(lint)
static const char rcsid[] =
"$FreeBSD$";
#endif
struct cardbus_quirk {
u_int32_t devid; /* Vendor/device of the card */
int type;
#define CARDBUS_QUIRK_MAP_REG 1 /* PCI map register in wierd place */
int arg1;
int arg2;
};
struct cardbus_quirk cardbus_quirks[] = {
{ 0 }
};
static int cardbus_probe(device_t dev);
static int cardbus_attach(device_t dev);
static void device_setup_regs(device_t cbdev, int b, int s, int f,
pcicfgregs *cfg);
static int cardbus_attach_card(device_t dev);
static int cardbus_detach_card(device_t dev, int flags);
static struct cardbus_devinfo *cardbus_read_device(device_t pcib,
int b, int s, int f);
static void cardbus_hdrtypedata(device_t pcib, int b, int s, int f,
pcicfgregs *cfg);
static int cardbus_freecfg(struct cardbus_devinfo *dinfo);
static void cardbus_print_verbose(struct cardbus_devinfo *dinfo);
static int cardbus_set_resource(device_t dev, device_t child, int type,
int rid, u_long start, u_long count);
static int cardbus_get_resource(device_t dev, device_t child, int type,
int rid, u_long *startp, u_long *countp);
static void cardbus_delete_resource(device_t dev, device_t child, int type,
int rid);
static int cardbus_set_resource_method(device_t dev, device_t child, int type,
int rid, u_long start, u_long count);
static int cardbus_get_resource_method(device_t dev, device_t child, int type,
int rid, u_long *startp, u_long *countp);
static int cardbus_add_map(device_t bdev, device_t dev, pcicfgregs *cfg,
int reg);
static void cardbus_add_resources(device_t dev, pcicfgregs* cfg);
static void cardbus_release_all_resources(device_t dev,
struct resource_list *rl);
static struct resource* cardbus_alloc_resource(device_t self, device_t child,
int type, int* rid,u_long start,
u_long end, u_long count,
u_int flags);
static int cardbus_release_resource(device_t dev, device_t child, int type,
int rid, struct resource *r);
static int cardbus_print_resources(struct resource_list *rl, const char *name,
int type, const char *format);
static int cardbus_print_child(device_t dev, device_t child);
static void cardbus_probe_nomatch(device_t dev, device_t child);
static int cardbus_read_ivar(device_t dev, device_t child, int which,
u_long *result);
static int cardbus_write_ivar(device_t dev, device_t child, int which,
uintptr_t value);
static u_int32_t cardbus_read_config_method(device_t dev, device_t child,
int reg, int width);
static void cardbus_write_config_method(device_t dev, device_t child, int reg,
u_int32_t val, int width);
/************************************************************************/
/* Probe/Attach */
/************************************************************************/
static int
cardbus_probe(device_t dev)
{
device_set_desc(dev, "Cardbus bus (newcard)");
return 0;
}
static int
cardbus_attach(device_t dev)
{
return 0;
}
static int
cardbus_detach(device_t dev)
{
cardbus_detach_card(dev, DETACH_FORCE);
return 0;
}
/************************************************************************/
/* Attach/Detach card */
/************************************************************************/
static void
device_setup_regs(device_t bdev, int b, int s, int f, pcicfgregs *cfg)
{
PCIB_WRITE_CONFIG(bdev, b, s, f, PCIR_INTLINE,
pci_get_irq(device_get_parent(bdev)), 1);
cfg->intline = PCIB_READ_CONFIG(bdev, b, s, f, PCIR_INTLINE, 1);
PCIB_WRITE_CONFIG(bdev, b, s, f, PCIR_CACHELNSZ, 0x08, 1);
cfg->cachelnsz = PCIB_READ_CONFIG(bdev, b, s, f, PCIR_CACHELNSZ, 1);
PCIB_WRITE_CONFIG(bdev, b, s, f, PCIR_LATTIMER, 0xa8, 1);
cfg->lattimer = PCIB_READ_CONFIG(bdev, b, s, f, PCIR_LATTIMER, 1);
PCIB_WRITE_CONFIG(bdev, b, s, f, PCIR_MINGNT, 0x14, 1);
cfg->mingnt = PCIB_READ_CONFIG(bdev, b, s, f, PCIR_MINGNT, 1);
PCIB_WRITE_CONFIG(bdev, b, s, f, PCIR_MAXLAT, 0x14, 1);
cfg->maxlat = PCIB_READ_CONFIG(bdev, b, s, f, PCIR_MAXLAT, 1);
}
static int
cardbus_attach_card(device_t dev)
{
device_t bdev = device_get_parent(dev);
int cardattached = 0;
static int curr_bus_number = 2; /* XXX EVILE BAD (see below) */
int bus, slot, func;
cardbus_detach_card(dev, DETACH_NOWARN); /* detach existing cards */
POWER_ENABLE_SOCKET(bdev, dev);
bus = pcib_get_bus(dev);
if (bus == 0) {
/*
* XXX EVILE BAD XXX
* Not all BIOSes initialize the secondary bus number properly,
* so if the default is bad, we just put one in and hope it
* works.
*/
bus = curr_bus_number;
pci_write_config (bdev, PCIR_SECBUS_2, curr_bus_number, 1);
pci_write_config (bdev, PCIR_SUBBUS_2, curr_bus_number+2, 1);
curr_bus_number += 3;
}
for (slot = 0; slot <= CARDBUS_SLOTMAX; slot++) {
int cardbusfunchigh = 0;
for (func = 0; func <= cardbusfunchigh; func++) {
struct cardbus_devinfo *dinfo =
cardbus_read_device(bdev, bus, slot, func);
if (dinfo == NULL) continue;
if (dinfo->cfg.mfdev)
cardbusfunchigh = CARDBUS_FUNCMAX;
device_setup_regs(bdev, bus, slot, func, &dinfo->cfg);
cardbus_print_verbose(dinfo);
dinfo->cfg.dev = device_add_child(dev, NULL, -1);
if (!dinfo->cfg.dev) {
DEVPRINTF((dev, "Cannot add child!\n"));
cardbus_freecfg(dinfo);
continue;
}
resource_list_init(&dinfo->resources);
device_set_ivars(dinfo->cfg.dev, dinfo);
cardbus_add_resources(dinfo->cfg.dev, &dinfo->cfg);
cardbus_do_cis(dev, dinfo->cfg.dev);
if (device_probe_and_attach(dinfo->cfg.dev) != 0) {
cardbus_release_all_resources(dinfo->cfg.dev,
&dinfo->resources);
} else
cardattached++;
}
}
if (cardattached > 0) return 0;
POWER_DISABLE_SOCKET(bdev, dev);
return ENOENT;
}
static int
cardbus_detach_card(device_t dev, int flags)
{
int numdevs;
device_t *devlist;
int tmp;
int err=0;
device_get_children(dev, &devlist, &numdevs);
if (numdevs == 0) {
if (!(flags & DETACH_NOWARN)) {
DEVPRINTF((dev, "Detaching card: no cards to detach!\n"));
POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
}
return ENOENT;
}
for (tmp = 0; tmp < numdevs; tmp++) {
struct cardbus_devinfo *dinfo = device_get_ivars(devlist[tmp]);
int status = device_get_state(devlist[tmp]);
if (status == DS_ATTACHED || status == DS_BUSY) {
if (device_detach(dinfo->cfg.dev) == 0 ||
flags & DETACH_FORCE){
cardbus_release_all_resources(dinfo->cfg.dev,
&dinfo->resources);
device_delete_child(dev, devlist[tmp]);
} else {
err++;
}
cardbus_freecfg(dinfo);
} else {
device_delete_child(dev, devlist[tmp]);
}
}
if (err == 0)
POWER_DISABLE_SOCKET(device_get_parent(dev), dev);
return err;
}
static void
cardbus_driver_added(device_t dev, driver_t *driver)
{
int numdevs;
device_t *devlist;
device_t bdev = device_get_parent(dev);
int tmp, cardattached;
device_get_children(dev, &devlist, &numdevs);
cardattached = 0;
for (tmp = 0; tmp < numdevs; tmp++) {
if (device_get_state(devlist[tmp]) != DS_NOTPRESENT)
cardattached++;
}
if (cardattached == 0)
POWER_ENABLE_SOCKET(bdev, dev);
DEVICE_IDENTIFY(driver, dev);
for (tmp = 0; tmp < numdevs; tmp++) {
if (device_get_state(devlist[tmp]) == DS_NOTPRESENT){
struct cardbus_devinfo *dinfo;
dinfo = device_get_ivars(devlist[tmp]);
resource_list_init(&dinfo->resources);
cardbus_add_resources(dinfo->cfg.dev, &dinfo->cfg);
cardbus_do_cis(dev, dinfo->cfg.dev);
if (device_probe_and_attach(dinfo->cfg.dev) != 0) {
cardbus_release_all_resources(dinfo->cfg.dev,
&dinfo->resources);
} else
cardattached++;
}
}
if (cardattached == 0)
POWER_DISABLE_SOCKET(bdev, dev);
}
/************************************************************************/
/* PCI-Like config reading (copied from pci.c */
/************************************************************************/
/* read configuration header into pcicfgrect structure */
static struct cardbus_devinfo *
cardbus_read_device(device_t pcib, int b, int s, int f)
{
#define REG(n, w) PCIB_READ_CONFIG(pcib, b, s, f, n, w)
pcicfgregs *cfg = NULL;
struct cardbus_devinfo *devlist_entry = NULL;
if (PCIB_READ_CONFIG(pcib, b, s, f, PCIR_DEVVENDOR, 4) != -1) {
devlist_entry = malloc(sizeof(struct cardbus_devinfo),
M_DEVBUF, M_WAITOK | M_ZERO);
if (devlist_entry == NULL)
return (NULL);
cfg = &devlist_entry->cfg;
cfg->bus = b;
cfg->slot = s;
cfg->func = f;
cfg->vendor = REG(PCIR_VENDOR, 2);
cfg->device = REG(PCIR_DEVICE, 2);
cfg->cmdreg = REG(PCIR_COMMAND, 2);
cfg->statreg = REG(PCIR_STATUS, 2);
cfg->baseclass = REG(PCIR_CLASS, 1);
cfg->subclass = REG(PCIR_SUBCLASS, 1);
cfg->progif = REG(PCIR_PROGIF, 1);
cfg->revid = REG(PCIR_REVID, 1);
cfg->hdrtype = REG(PCIR_HEADERTYPE, 1);
cfg->cachelnsz = REG(PCIR_CACHELNSZ, 1);
cfg->lattimer = REG(PCIR_LATTIMER, 1);
cfg->intpin = REG(PCIR_INTPIN, 1);
cfg->intline = REG(PCIR_INTLINE, 1);
#ifdef __alpha__
alpha_platform_assign_pciintr(cfg);
#endif
#ifdef APIC_IO
if (cfg->intpin != 0) {
int airq;
airq = pci_apic_irq(cfg->bus, cfg->slot, cfg->intpin);
if (airq >= 0) {
/* PCI specific entry found in MP table */
if (airq != cfg->intline) {
undirect_pci_irq(cfg->intline);
cfg->intline = airq;
}
} else {
/*
* PCI interrupts might be redirected to the
* ISA bus according to some MP tables. Use the
* same methods as used by the ISA devices
* devices to find the proper IOAPIC int pin.
*/
airq = isa_apic_irq(cfg->intline);
if ((airq >= 0) && (airq != cfg->intline)) {
/* XXX: undirect_pci_irq() ? */
undirect_isa_irq(cfg->intline);
cfg->intline = airq;
}
}
}
#endif /* APIC_IO */
cfg->mingnt = REG(PCIR_MINGNT, 1);
cfg->maxlat = REG(PCIR_MAXLAT, 1);
cfg->mfdev = (cfg->hdrtype & PCIM_MFDEV) != 0;
cfg->hdrtype &= ~PCIM_MFDEV;
cardbus_hdrtypedata(pcib, b, s, f, cfg);
devlist_entry->conf.pc_sel.pc_bus = cfg->bus;
devlist_entry->conf.pc_sel.pc_dev = cfg->slot;
devlist_entry->conf.pc_sel.pc_func = cfg->func;
devlist_entry->conf.pc_hdr = cfg->hdrtype;
devlist_entry->conf.pc_subvendor = cfg->subvendor;
devlist_entry->conf.pc_subdevice = cfg->subdevice;
devlist_entry->conf.pc_vendor = cfg->vendor;
devlist_entry->conf.pc_device = cfg->device;
devlist_entry->conf.pc_class = cfg->baseclass;
devlist_entry->conf.pc_subclass = cfg->subclass;
devlist_entry->conf.pc_progif = cfg->progif;
devlist_entry->conf.pc_revid = cfg->revid;
}
return (devlist_entry);
#undef REG
}
/* extract header type specific config data */
static void
cardbus_hdrtypedata(device_t pcib, int b, int s, int f, pcicfgregs *cfg)
{
#define REG(n, w) PCIB_READ_CONFIG(pcib, b, s, f, n, w)
switch (cfg->hdrtype) {
case 0:
cfg->subvendor = REG(PCIR_SUBVEND_0, 2);
cfg->subdevice = REG(PCIR_SUBDEV_0, 2);
cfg->nummaps = PCI_MAXMAPS_0;
break;
case 1:
cfg->subvendor = REG(PCIR_SUBVEND_1, 2);
cfg->subdevice = REG(PCIR_SUBDEV_1, 2);
cfg->nummaps = PCI_MAXMAPS_1;
break;
case 2:
cfg->subvendor = REG(PCIR_SUBVEND_2, 2);
cfg->subdevice = REG(PCIR_SUBDEV_2, 2);
cfg->nummaps = PCI_MAXMAPS_2;
break;
}
#undef REG
}
/* free pcicfgregs structure and all depending data structures */
static int
cardbus_freecfg(struct cardbus_devinfo *dinfo)
{
free(dinfo, M_DEVBUF);
return (0);
}
static void
cardbus_print_verbose(struct cardbus_devinfo *dinfo)
{
if (bootverbose) {
pcicfgregs *cfg = &dinfo->cfg;
printf("found->\tvendor=0x%04x, dev=0x%04x, revid=0x%02x\n",
cfg->vendor, cfg->device, cfg->revid);
printf("\tclass=%02x-%02x-%02x, hdrtype=0x%02x, mfdev=%d\n",
cfg->baseclass, cfg->subclass, cfg->progif,
cfg->hdrtype, cfg->mfdev);
#ifdef CARDBUS_DEBUG
printf("\tcmdreg=0x%04x, statreg=0x%04x, cachelnsz=%d (dwords)\n",
cfg->cmdreg, cfg->statreg, cfg->cachelnsz);
printf("\tlattimer=0x%02x (%d ns), mingnt=0x%02x (%d ns), maxlat=0x%02x (%d ns)\n",
cfg->lattimer, cfg->lattimer * 30,
cfg->mingnt, cfg->mingnt * 250, cfg->maxlat, cfg->maxlat * 250);
#endif /* CARDBUS_DEBUG */
if (cfg->intpin > 0)
printf("\tintpin=%c, irq=%d\n", cfg->intpin +'a' -1, cfg->intline);
}
}
/************************************************************************/
/* Resources */
/************************************************************************/
static int
cardbus_set_resource(device_t dev, device_t child, int type, int rid,
u_long start, u_long count)
{
struct cardbus_devinfo *dinfo = device_get_ivars(child);
struct resource_list *rl = &dinfo->resources;
resource_list_add(rl, type, rid, start, start + count - 1, count);
if (device_get_parent(child) == dev)
pci_write_config(child, rid, start, 4);
return 0;
}
static int
cardbus_get_resource(device_t dev, device_t child, int type, int rid,
u_long *startp, u_long *countp)
{
struct cardbus_devinfo *dinfo = device_get_ivars(child);
struct resource_list *rl = &dinfo->resources;
struct resource_list_entry *rle;
rle = resource_list_find(rl, type, rid);
if (!rle)
return ENOENT;
if (startp)
*startp = rle->start;
if (countp)
*countp = rle->count;
return 0;
}
static void
cardbus_delete_resource(device_t dev, device_t child, int type, int rid)
{
struct cardbus_devinfo *dinfo = device_get_ivars(child);
struct resource_list *rl = &dinfo->resources;
struct resource_list_entry *rle;
rle = resource_list_find(rl, type, rid);
if (rle) {
if (rle->res)
bus_generic_release_resource(dev, child, type, rid,
rle->res);
resource_list_delete(rl, type, rid);
}
if (device_get_parent(child) == dev)
pci_write_config(child, rid, 0, 4);
}
static int
cardbus_set_resource_method(device_t dev, device_t child, int type, int rid,
u_long start, u_long count)
{
int ret;
ret = cardbus_set_resource(dev, child, type, rid, start, count);
if (ret != 0) return ret;
return BUS_SET_RESOURCE(device_get_parent(dev), child, type, rid,
start, count);
}
static int
cardbus_get_resource_method(device_t dev, device_t child, int type, int rid,
u_long *startp, u_long *countp)
{
int ret;
ret = cardbus_get_resource(dev, child, type, rid, startp, countp);
if (ret != 0) return ret;
return BUS_GET_RESOURCE(device_get_parent(dev), child, type, rid,
startp, countp);
}
static void
cardbus_delete_resource_method(device_t dev, device_t child,
int type, int rid)
{
cardbus_delete_resource(dev, child, type, rid);
BUS_DELETE_RESOURCE(device_get_parent(dev), child, type, rid);
}
static int
cardbus_add_map(device_t cbdev, device_t dev, pcicfgregs *cfg, int reg)
{
struct cardbus_devinfo *dinfo = device_get_ivars(dev);
struct resource_list *rl = &dinfo->resources;
struct resource_list_entry *rle;
struct resource *res;
device_t bdev = device_get_parent(cbdev);
u_int32_t size;
u_int32_t testval;
int type;
if (reg == CARDBUS_ROM_REG)
testval = CARDBUS_ROM_ADDRMASK;
else
testval = ~0;
PCIB_WRITE_CONFIG(bdev, cfg->bus, cfg->slot, cfg->func,
reg, testval, 4);
testval = PCIB_READ_CONFIG(bdev, cfg->bus, cfg->slot, cfg->func,
reg, 4);
if (testval == ~0 || testval == 0)
return 0;
if ((testval&1) == 0)
type = SYS_RES_MEMORY;
else
type = SYS_RES_IOPORT;
size = CARDBUS_MAPREG_MEM_SIZE(testval);
res = bus_generic_alloc_resource(cbdev, dev, type, ®, 0, ~0, size,
rman_make_alignment_flags(size));
if (res) {
u_int32_t start = rman_get_start(res);
u_int32_t end = rman_get_end(res);
cardbus_set_resource(cbdev, dev, type, reg, start,end-start+1);
rle = resource_list_find(rl, type, reg);
rle->res = res;
} else {
device_printf(dev, "Unable to add map %02x\n", reg);
type = 0;
}
return type;
}
static void
cardbus_add_resources(device_t dev, pcicfgregs* cfg)
{
device_t cbdev = device_get_parent(dev);
device_t bdev = device_get_parent(cbdev);
struct cardbus_devinfo *dinfo = device_get_ivars(dev);
struct resource_list *rl = &dinfo->resources;
struct cardbus_quirk *q;
struct resource_list_entry *rle;
struct resource *res;
int rid;
u_int command;
int type;
int types;
int i;
types = 0;
for (i = 0; i < cfg->nummaps; i++) {
type = cardbus_add_map(cbdev, dev, cfg, PCIR_MAPS + i*4);
types |= 0x1 << type;
}
type = cardbus_add_map(cbdev, dev, cfg, CARDBUS_ROM_REG);
types |= 0x1 << type;
for (q = &cardbus_quirks[0]; q->devid; q++) {
if (q->devid == ((cfg->device << 16) | cfg->vendor)
&& q->type == CARDBUS_QUIRK_MAP_REG) {
type = cardbus_add_map(cbdev, dev, cfg, q->arg1);
types |= 0x1 << type;
}
}
command = PCIB_READ_CONFIG(bdev, cfg->bus, cfg->slot,
cfg->func, PCIR_COMMAND, 2);
if ((types & (0x1 << SYS_RES_MEMORY)) != 0)
command |= PCIM_CMD_MEMEN;
if ((types & (0x1 << SYS_RES_IOPORT)) != 0)
command |= PCIM_CMD_PORTEN;
command |= PCIM_CMD_BUSMASTEREN;
PCIB_WRITE_CONFIG(bdev, cfg->bus, cfg->slot, cfg->func,
PCIR_COMMAND, command, 2);
rid = 0;
res = bus_generic_alloc_resource(cbdev, dev, SYS_RES_IRQ,
&rid, 0, ~0, 1, RF_SHAREABLE);
if (res == NULL)
panic("Cannot allocate IRQ for card\n");
resource_list_add(rl, SYS_RES_IRQ, rid,
rman_get_start(res), rman_get_start(res), 1);
rle = resource_list_find(rl, SYS_RES_IRQ, rid);
rle->res = res;
}
static void
cardbus_release_all_resources(device_t dev, struct resource_list *rl)
{
struct resource_list_entry *rle;
SLIST_FOREACH(rle, rl, link) {
if (rle->res) {
bus_generic_release_resource(device_get_parent(dev),
dev, rle->type, rle->rid,
rle->res);
}
}
}
static struct resource*
cardbus_alloc_resource(device_t self, device_t child, int type,
int* rid, u_long start, u_long end,
u_long count, u_int flags)
{
struct cardbus_devinfo *dinfo = device_get_ivars(child);
struct resource_list *rl = &dinfo->resources;
struct resource_list_entry *rle = NULL;
struct resource *res;
if (device_get_parent(child) == self || child == self)
rle = resource_list_find(rl, type, *rid);
if (rle) {
if (flags & RF_ACTIVE) {
if (bus_activate_resource(child, rle->type, *rid,
rle->res)) {
return NULL;
}
if (*rid == CARDBUS_ROM_REG) {
uint32_t rom_reg;
rom_reg = pci_read_config(child, *rid, 4);
rom_reg |= CARDBUS_ROM_ENABLE;
pci_write_config(child, *rid, rom_reg, 4);
}
}
return rle->res; /* XXX: check if range within start/end */
} else {
res = bus_generic_alloc_resource(self, child, type, rid,
start, end, count, flags);
if (res) {
start = rman_get_start(res);
end = rman_get_end(res);
cardbus_set_resource(self, child, type, *rid, start,
end-start+1);
rle = resource_list_find(rl, type, *rid);
rle->res = res;
return res;
} else {
device_printf(self, "Resource Allocation Failed!\n");
return NULL;
}
}
}
static int
cardbus_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
/*
* According to the PCI 2.2 spec, devices may share an address
* decoder between memory mapped ROM access and memory
* mapped register access. To be safe, disable ROM access
* whenever it is released.
*/
if (rid == CARDBUS_ROM_REG) {
uint32_t rom_reg;
rom_reg = pci_read_config(child, rid, 4);
rom_reg &= ~CARDBUS_ROM_ENABLE;
pci_write_config(child, rid, rom_reg, 4);
}
return bus_deactivate_resource(child, type, rid, r);
}
/************************************************************************/
/* Other Bus Methods */
/************************************************************************/
static int
cardbus_print_resources(struct resource_list *rl, const char *name,
int type, const char *format)
{
struct resource_list_entry *rle;
int printed, retval;
printed = 0;
retval = 0;
/* Yes, this is kinda cheating */
SLIST_FOREACH(rle, rl, link) {
if (rle->type == type) {
if (printed == 0)
retval += printf(" %s ", name);
else if (printed > 0)
retval += printf(",");
printed++;
retval += printf(format, rle->start);
if (rle->count > 1) {
retval += printf("-");
retval += printf(format, rle->start +
rle->count - 1);
}
}
}
return retval;
}
static int
cardbus_print_child(device_t dev, device_t child)
{
struct cardbus_devinfo *dinfo;
struct resource_list *rl;
pcicfgregs *cfg;
int retval = 0;
dinfo = device_get_ivars(child);
cfg = &dinfo->cfg;
rl = &dinfo->resources;
retval += bus_print_child_header(dev, child);
retval += cardbus_print_resources(rl, "port", SYS_RES_IOPORT, "%#lx");
retval += cardbus_print_resources(rl, "mem", SYS_RES_MEMORY, "%#lx");
retval += cardbus_print_resources(rl, "irq", SYS_RES_IRQ, "%ld");
if (device_get_flags(dev))
retval += printf(" flags %#x", device_get_flags(dev));
retval += printf(" at device %d.%d", pci_get_slot(child),
pci_get_function(child));
retval += bus_print_child_footer(dev, child);
return (retval);
}
static void cardbus_probe_nomatch(device_t dev, device_t child) {
struct cardbus_devinfo *dinfo;
pcicfgregs *cfg;
dinfo = device_get_ivars(child);
cfg = &dinfo->cfg;
device_printf(dev, "<unknown card>");
printf(" (vendor=0x%04x, dev=0x%04x)", cfg->vendor, cfg->device);
printf(" at %d.%d", pci_get_slot(child), pci_get_function(child));
if (cfg->intpin > 0 && cfg->intline != 255) {
printf(" irq %d", cfg->intline);
}
printf("\n");
return;
}
static int
cardbus_read_ivar(device_t dev, device_t child, int which, u_long *result)
{
struct cardbus_devinfo *dinfo;
pcicfgregs *cfg;
dinfo = device_get_ivars(child);
cfg = &dinfo->cfg;
switch (which) {
case PCI_IVAR_SUBVENDOR:
*result = cfg->subvendor;
break;
case PCI_IVAR_SUBDEVICE:
*result = cfg->subdevice;
break;
case PCI_IVAR_VENDOR:
*result = cfg->vendor;
break;
case PCI_IVAR_DEVICE:
*result = cfg->device;
break;
case PCI_IVAR_DEVID:
*result = (cfg->device << 16) | cfg->vendor;
break;
case PCI_IVAR_CLASS:
*result = cfg->baseclass;
break;
case PCI_IVAR_SUBCLASS:
*result = cfg->subclass;
break;
case PCI_IVAR_PROGIF:
*result = cfg->progif;
break;
case PCI_IVAR_REVID:
*result = cfg->revid;
break;
case PCI_IVAR_INTPIN:
*result = cfg->intpin;
break;
case PCI_IVAR_IRQ:
*result = cfg->intline;
break;
case PCI_IVAR_BUS:
*result = cfg->bus;
break;
case PCI_IVAR_SLOT:
*result = cfg->slot;
break;
case PCI_IVAR_FUNCTION:
*result = cfg->func;
break;
default:
return ENOENT;
}
return 0;
}
static int
cardbus_write_ivar(device_t dev, device_t child, int which, uintptr_t value)
{
struct cardbus_devinfo *dinfo;
pcicfgregs *cfg;
dinfo = device_get_ivars(child);
cfg = &dinfo->cfg;
switch (which) {
case PCI_IVAR_SUBVENDOR:
case PCI_IVAR_SUBDEVICE:
case PCI_IVAR_VENDOR:
case PCI_IVAR_DEVICE:
case PCI_IVAR_DEVID:
case PCI_IVAR_CLASS:
case PCI_IVAR_SUBCLASS:
case PCI_IVAR_PROGIF:
case PCI_IVAR_REVID:
case PCI_IVAR_INTPIN:
case PCI_IVAR_IRQ:
case PCI_IVAR_BUS:
case PCI_IVAR_SLOT:
case PCI_IVAR_FUNCTION:
return EINVAL; /* disallow for now */
default:
return ENOENT;
}
return 0;
}
/************************************************************************/
/* Compatibility with PCI bus (XXX: Do we need this?) */
/************************************************************************/
static u_int32_t
cardbus_read_config_method(device_t dev, device_t child, int reg, int width)
{
struct cardbus_devinfo *dinfo = device_get_ivars(child);
pcicfgregs *cfg = &dinfo->cfg;
return PCIB_READ_CONFIG(device_get_parent(dev),
cfg->bus, cfg->slot, cfg->func,
reg, width);
}
static void
cardbus_write_config_method(device_t dev, device_t child, int reg,
u_int32_t val, int width)
{
struct cardbus_devinfo *dinfo = device_get_ivars(child);
pcicfgregs *cfg = &dinfo->cfg;
PCIB_WRITE_CONFIG(device_get_parent(dev),
cfg->bus, cfg->slot, cfg->func,
reg, val, width);
}
static device_method_t cardbus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, cardbus_probe),
DEVMETHOD(device_attach, cardbus_attach),
DEVMETHOD(device_detach, cardbus_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */
DEVMETHOD(bus_print_child, cardbus_print_child),
DEVMETHOD(bus_probe_nomatch, cardbus_probe_nomatch),
DEVMETHOD(bus_read_ivar, cardbus_read_ivar),
DEVMETHOD(bus_write_ivar, cardbus_write_ivar),
DEVMETHOD(bus_driver_added, cardbus_driver_added),
DEVMETHOD(bus_alloc_resource, cardbus_alloc_resource),
DEVMETHOD(bus_release_resource, cardbus_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
DEVMETHOD(bus_set_resource, cardbus_set_resource_method),
DEVMETHOD(bus_get_resource, cardbus_get_resource_method),
DEVMETHOD(bus_delete_resource, cardbus_delete_resource_method),
/* Card Interface */
DEVMETHOD(card_attach_card, cardbus_attach_card),
DEVMETHOD(card_detach_card, cardbus_detach_card),
DEVMETHOD(card_cis_read, cardbus_cis_read),
DEVMETHOD(card_cis_free, cardbus_cis_free),
/* Cardbus/PCI interface */
DEVMETHOD(pci_read_config, cardbus_read_config_method),
DEVMETHOD(pci_write_config, cardbus_write_config_method),
{0,0}
};
static driver_t cardbus_driver = {
"cardbus",
cardbus_methods,
0 /* no softc */
};
static devclass_t cardbus_devclass;
DRIVER_MODULE(cardbus, pccbb, cardbus_driver, cardbus_devclass, 0, 0);
/*
MODULE_DEPEND(cardbus, pccbb, 1, 1, 1);
*/
|