forked from coolstar/VoodooSDHCI
-
Notifications
You must be signed in to change notification settings - Fork 4
/
VoodooSDHC.cpp
executable file
·1778 lines (1583 loc) · 50.5 KB
/
VoodooSDHC.cpp
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
989
990
991
992
993
994
995
996
997
998
999
1000
#include "License.h"
/*****************************************************************************/
/* Build Configuration Defines */
/* Debug - mostly turns on more logging */
//#define __DEBUG__ 1
/*
* Builds the driver to prohibit writes to the card. Useful while building
* confidence in changes without corrupting data.
*/
//#define READONLY_DRIVER 1
/*
* Builds the driver with High Speed Card support.
*/
//#define HIGHSPEED_CARD_MODE 1
/*
* Builds the driver with 4-bit Bus support.
*/
#define WIDE_BUS_MODE 1
/*
* Use multiblock reads/writes. Define to either 0 or 1
*/
#define USE_MULTIBLOCK 1
/*
* Use SDMA reads/writes. Define to either 0 or 1
*/
#define USE_SDMA 1
/*
* The Linux driver for this device claimed that the card needs to be reset
* after every command. That doesn't seem to be necessary so we turn on
* NO_RESET_WAR.
*/
#define NO_RESET_WAR 1
#define SDMA_BUFFER_SIZE 32768
#define SDMA_BUFFER_SIZE_IN_REG 0x3000 /* see def. of Block Size Register */
#define SDMA_RETRY_COUNT 5
/*****************************************************************************/
//#include <libkern/OSByteOrder.h>
#include "VoodooSDHC.h"
#include "SDHCI_Register_Map.h"
#include "SD_Commands.h"
#include "sdhci.h"
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))
#define super IOBlockStorageDevice
OSDefineMetaClassAndStructors ( VoodooSDHC, IOBlockStorageDevice );
/*****************************************************************************/
/* Helper Functions */
/*
* read_block_pio: Read a single 512 byte block of data with no error
* checking from a PIO address to memory.
* volatile UInt32 *reg_addr: Address of card's PIO register
* UInt8 *buf: Buffer in which to place data - m
*/
static inline void read_block_pio(volatile UInt32 *reg_addr, UInt32 *buf) {
UInt32 *bufp = buf;
for (int i = 0; i < 512 / sizeof(UInt32); i++) {
*bufp++ = *reg_addr;
}
}
/*****************************************************************************/
/* Main Driver Code */
/*
* init: Initialize driver. Returns true on success, false on failure
* OSDictionary *properties: Driver properties passed in
*/
bool VoodooSDHC::init ( OSDictionary * properties )
{
IOLog("VoodooSDHCI ::: an SDHCI driver for Ricoh, TI, and JMicron SD Host Controllers ::: rev 20091008\n");
IOLog("VoodooSDHCI: initializing SD host controller\n");
/* Run by our superclass */
if ( super::init ( properties ) == false )
{
return false;
}
#ifdef USE_SDMA
if ((workLoop = IOWorkLoop::workLoop()) == NULL)
return false;
#endif
return true;
}
void VoodooSDHC::free()
{
#ifdef USE_SDMA
if (workLoop != NULL) {
workLoop->release();
workLoop = NULL;
}
#endif
super::free();
}
/*
* start: Starts driver. Called upon insertion of card. Returns true
* on success, false on failure.
* IOService *provider: Provider structure
*/
bool VoodooSDHC::start ( IOService * provider )
{
#ifdef __DEBUG__
IOLog("VoodooSDHCI: running start()\n");
IOLog("VoodooSDHCI: we have found %d SD Host Controllers\n",provider->getDeviceMemoryCount());
#endif
super::start ( provider );
lock.init();
#ifdef USE_SDMA
sdmaCond = IOLockAlloc();
mediaStateLock = IOLockAlloc();
#endif
#ifdef __DEBUG__
IOLog("VoodooSDHCI: starting card power management\n");
#endif
// initialize superclass variables from IOService.h
PMinit();
static const IOPMPowerState powerStates[] = {
{kIOPMPowerStateVersion1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
{kIOPMPowerStateVersion1, kIOPMDeviceUsable, IOPMPowerOn, IOPMPowerOn, 0, 0, 0, 0, 0, 0, 0, 0}
};
registerPowerDriver(this, const_cast<IOPMPowerState*>(powerStates),
sizeof(powerStates) / sizeof(powerStates[0]));
// join the tree from IOService.h
provider->joinPMtree(this);
#ifdef USE_SDMA
sdmaBuffDesc = IOBufferMemoryDescriptor::withCapacity(SDMA_BUFFER_SIZE * 2, kIODirectionInOut, true);
physSdmaBuff = sdmaBuffDesc->getPhysicalAddress();
virtSdmaBuff = (char*)sdmaBuffDesc->getBytesNoCopy() + SDMA_BUFFER_SIZE - physSdmaBuff % SDMA_BUFFER_SIZE;
physSdmaBuff += SDMA_BUFFER_SIZE - physSdmaBuff % SDMA_BUFFER_SIZE;
#endif
cardPresence = kCardNotPresent;
if (! setup(provider)) {
return false;
}
#ifdef USE_SDMA
IOWorkLoop *workLoop;
if ((workLoop = getWorkLoop()) == NULL) {
IOLog("VoodooSDHCI: unable to get a workloop; getWorkLoop() == NULL\n");
return false;
}
if ((interruptSrc = IOFilterInterruptEventSource::filterInterruptEventSource(
this, interruptHandler, interruptFilter, provider
)) == NULL) {
IOLog("VoodooSDHCI: failed to create an interrupt source\n");
return false;
}
if (workLoop->addEventSource(interruptSrc) != kIOReturnSuccess) {
IOLog("VoodooSDHCI: failed to add FIES to work loop\n");
return false;
}
if ((timerSrc = IOTimerEventSource::timerEventSource(this, timerHandler)) == NULL) {
IOLog("VoodooSDHCI: failed to create a timer event source\n");
return false;
}
if (workLoop->addEventSource(timerSrc) != kIOReturnSuccess) {
IOLog("VoodooSDHCI: failed ot add TES to work loop\n");
return false;
}
#endif
this->attach(this);
registerService();
#ifdef USE_SDMA
interruptSrc->enable();
timerSrc->enable();
timerSrc->setTimeoutMS(50); // intial timeout is small, to detect card insertion ASAP
#endif
// The controller is now initialized and ready for operation
return true;
}
/*
* setup: Initializes I/O, called upon start and resume, returns true on success.
* IOService *provider: Provider structure
*/
bool VoodooSDHC::setup(IOService * provider)
{
IODeviceMemory * pMem;
UInt8 slot = 0;
for (slot=0; slot<provider->getDeviceMemoryCount(); slot++) {
pMem = provider->getDeviceMemoryWithIndex(0);
this->PCIRegMap = provider->mapDeviceMemoryWithIndex(0);
if (!this->PCIRegMap) {
IOLog("VoodooSDHCI: PCI Register Mapping for Device %d Failed!\n", (int)slot);
return false;
}
this->PCIRegP[slot] =
(SDHCIRegMap_t *)PCIRegMap->getVirtualAddress();
#ifdef __DEBUG__
IOLog("VoodooSDHCI: controller slot == %d\n", slot);
IOLog("VoodooSDHCI: unit memory (pMem) == %d\n", pMem->getLength());
#endif
this->PCIRegP[slot]->PowerControl = 0;
Reset(slot, FULL_RESET);
IODelay(10000);
if (cardPresence == kCardIsPresent && isCardPresent(slot)) {
SDCIDReg_t oldCID = SDCIDReg[slot];
cardInit(slot);
if (memcmp(&oldCID, SDCIDReg + slot, sizeof(oldCID)) != 0) {
IOLog("VoodooSDHCI: oops! we found a different card :: remount?\n");
cardPresence = kCardRemount;
}
}
}
return true;
}
/*
* stop: Called on completion of service, such as ejection of card's
* filesystem.
* IOService *provider: Our provider structure
*/
void VoodooSDHC::stop(IOService *provider)
{
#ifdef __DEBUG__
IOLog("VoodooSDHCI: card is in stop() function\n");
#endif
#ifdef USE_SDMA
if (timerSrc != NULL) {
timerSrc->disable();
timerSrc->cancelTimeout();
getWorkLoop()->removeEventSource(timerSrc);
timerSrc->release();
timerSrc = NULL;
}
if (interruptSrc != NULL) {
interruptSrc->disable();
getWorkLoop()->removeEventSource(interruptSrc);
interruptSrc->release();
interruptSrc = NULL;
}
sdmaBuffDesc->release();
#endif
PMstop();
#ifdef USE_SDMA
IOLockFree(sdmaCond);
IOLockFree(mediaStateLock);
#endif
lock.free();
// Call our superclass
super::stop ( provider );
}
/*
* dumpRegs: Dump selected Host registers. Only used for driver
* debugging.
* UInt8 slot: Which card slot to dump
*/
void VoodooSDHC::dumpRegs(UInt8 slot) {
IOLog("VoodooSDHCI: Register Dump ******************************************************\n");
IOLog("VoodooSDHCI: SDMASysAddr: 0x%08X PresentState: 0x%08X\n",
this->PCIRegP[slot]->SDMASysAddr, this->PCIRegP[slot]->PresentState);
IOLog("VoodooSDHCI: BlockSize: 0x%04X BlockCount: 0x%04X\n",
this->PCIRegP[slot]->BlockSize, this->PCIRegP[slot]->BlockCount);
IOLog("VoodooSDHCI: TransferMode: 0x%04X Command: 0x%04X\n",
this->PCIRegP[slot]->TransferMode, this->PCIRegP[slot]->Command);
IOLog("VoodooSDHCI: HostControl: 0x%02X PowerControl: 0x%02X\n",
this->PCIRegP[slot]->HostControl, this->PCIRegP[slot]->PowerControl);
IOLog("VoodooSDHCI: BlockGapControl: 0x%02X WakeupControl: 0x%02X\n",
this->PCIRegP[slot]->BlockGapControl, this->PCIRegP[slot]->WakeupControl);
IOLog("VoodooSDHCI: ClockControl: 0x%04X TimeoutControl: 0x%02X\n",
this->PCIRegP[slot]->ClockControl, this->PCIRegP[slot]->TimeoutControl);
IOLog("VoodooSDHCI: SoftwareReset: 0x%02X NormalIntStatus: 0x%04X\n",
this->PCIRegP[slot]->SoftwareReset, this->PCIRegP[slot]->NormalIntStatus);
IOLog("VoodooSDHCI: ErrorIntStatus: 0x%04X NormalIntStatusEn: 0x%04X\n",
this->PCIRegP[slot]->ErrorIntStatus, this->PCIRegP[slot]->NormalIntStatusEn);
IOLog("VoodooSDHCI: ErrorIntStatusEn: 0x%04X NormalIntSignalEn: 0x%04X\n",
this->PCIRegP[slot]->ErrorIntStatusEn, this->PCIRegP[slot]->NormalIntSignalEn);
IOLog("VoodooSDHCI: ErrorIntSignalEn: 0x%04X CMD12ErrorStatus: 0x%04X\n",
this->PCIRegP[slot]->ErrorIntSignalEn, this->PCIRegP[slot]->CMD12ErrorStatus);
IOLog("VoodooSDHCI: Capabilities[1]: 0x%08X Capabilities[0]: 0x%08X\n",
this->PCIRegP[slot]->Capabilities[1], this->PCIRegP[slot]->Capabilities[0]);
IOLog("VoodooSDHCI: MaxCurrentCap[1]: 0x%08X MaxCurrentCap[0]: 0x%08X\n",
this->PCIRegP[slot]->MaxCurrentCap[1], this->PCIRegP[slot]->MaxCurrentCap[0]);
IOLog("VoodooSDHCI: ForceEventCMD12ErrStatus: 0x%04X ForceEventErrorIntStatus: 0x%04X\n",
this->PCIRegP[slot]->ForceEventCMD12ErrStatus, this->PCIRegP[slot]->ForceEventErrorIntStatus);
IOLog("VoodooSDHCI: AMDAErrorStatus: 0x%02X Argument 0x%08X\n",
this->PCIRegP[slot]->AMDAErrorStatus, PCIRegP[slot]->Argument);
IOLog("VoodooSDHCI: ADMASystemAddr[1]: 0x%08X ADMASystemAddr[0]: 0x%08lX\n",
this->PCIRegP[slot]->ADMASystemAddr[1], this->PCIRegP[slot]->ADMASystemAddr[0]);
IOLog("VoodooSDHCI: SlotIntStatus: 0x%04X HostControllerVer: 0x%04X\n",
this->PCIRegP[slot]->SlotIntStatus, this->PCIRegP[slot]->HostControllerVer);
IOLog("VoodooSDHCI: Response[1]: 0x%08X Response[0]: 0x%08X\n",
this->PCIRegP[slot]->Response[1], this->PCIRegP[slot]->Response[0]);
IOLog("VoodooSDHCI: Response[3]: 0x%08X Response[2]: 0x%08X\n",
this->PCIRegP[slot]->Response[3], this->PCIRegP[slot]->Response[2]);
IOLog("VoodooSDHCI: End of Register Dump************************************************\n");
}
/*
* cardInit: Initialize a card. Called upon insertion. When complete,
* card should be running at full speed and card data
* populated.
* UInt8 slot: Which slot the card is in.
*/
bool VoodooSDHC::cardInit(UInt8 slot)
{
isHighCapacity = false;
calcClock(slot, 400000);
powerSD(slot);
SDCommand(slot, SD_GO_IDLE_STATE, SDCR0, 0);
IODelay(30000);
SDCommand(slot, SD_SEND_IF_COND, SDCR8, 0x000001AA);
for (int i = 0; i < 100; i++) {
IODelay(10000);
if (!(PCIRegP[slot]->PresentState & ComInhibitCMD)) {
break;
}
}
if(this->PCIRegP[slot]->PresentState & ComInhibitCMD) {
IOLog("VoodooSDHCI: no response from CMD_8 -- ComInhibitCMD\n");
Reset(slot, CMD_RESET);
Reset(slot, DAT_RESET);
SDCommand(slot, SD_GO_IDLE_STATE, SDCR0, 0);
do {
SDCommand(slot, SD_APP_CMD, SDCR55, 0);
SDCommand(slot, SD_APP_OP_COND, SDACR41, 0x00FF8000);
IODelay(1000);
} while (!(this->PCIRegP[slot]->Response[0] & BIT31));
} else {
// check and init SDHC (wait for 2 secs; spec requires 1 sec)
IOLog("VoodooSDHCI: initializing spec 2.0 SD card\n");
for (int i = 0; i < 80; i++) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: sending CMD_55\n");
#endif //me
SDCommand(slot, SD_APP_CMD, SDCR55, 0);
#ifdef __DEBUG__
IOLog("VoodooSDHCI: sending APP_CMD_41\n");
#endif //me
SDCommand(slot, SD_APP_OP_COND, SDACR41, 0x40FF8000);
IODelay(25000);
if (this->PCIRegP[slot]->Response[0] & BIT31) {
goto OP_COND_COMPLETE;
}
}
#ifdef __DEBUG__
IOLog("VoodooSDHCI: no response to APP_CMD_41: 0x%08x\n", PCIRegP[slot]->Response[0]);
#endif
return false;
OP_COND_COMPLETE:
#ifdef __DEBUG__
IOLog("VoodooSDHCI: got response to APP_CMD_41: 0x%08x\n", PCIRegP[slot]->Response[0]);
#endif
if (this->PCIRegP[slot]->Response[0] & BIT30) {
IOLog("VoodooSDHCI: we have HC card\n");
isHighCapacity = true;
} else {
IOLog("VoodooSDHCI: standard SD (without HC)\n");
}
}
SDCommand(slot, SD_ALL_SEND_CID, SDCR2, 0);
IODelay(1000);
parseCID(slot);
SDCommand(slot, SD_SET_RELATIVE_ADDR, SDCR3, 0);
IODelay(1000);
calcClock(slot, 25000000);
this->RCA = this->PCIRegP[slot]->Response[0] >> 16;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: RCA == 0x%08X\n", this->RCA);
#endif//me
SDCommand(slot, SD_SEND_CSD, SDCR9, this->RCA << 16);
IODelay(2000000);
parseCSD(slot);
#ifdef __DEBUG__
IOLog("VoodooSDHCI: PCIRegP response order (3,2,1,0) :: 0x%08X 0x%08X 0x%08X 0x%08X\n",
this->PCIRegP[slot]->Response[3],
this->PCIRegP[slot]->Response[2],
this->PCIRegP[slot]->Response[1],
this->PCIRegP[slot]->Response[0]);
#endif//me
SDCommand(slot, SD_SELECT_CARD, SDCR7, this->RCA << 16);
IODelay(10000);
#ifdef WIDE_BUS_MODE
/* XXX - Need to check whether the card is capable before enabiling this */
#ifdef __DEBUG__
IOLog("VoodooSDHCI: WIDE_BUS_MODE :: setting 4 bit mode\n");
#endif //me
SDCommand(0, SD_APP_CMD, SDCR55, this->RCA << 16);
SDCommand(slot, SD_APP_SET_BUS_WIDTH, SDCR6, 2);
IODelay(30000);
#ifdef __DEBUG__
IOLog("VoodooSDHCI: PCIRegP response order (3,2,1,0) :: 0x%08X 0x%08X 0x%08X 0x%08X\n",
this->PCIRegP[slot]->Response[3],
this->PCIRegP[slot]->Response[2],
this->PCIRegP[slot]->Response[1],
this->PCIRegP[slot]->Response[0]);
#endif//me
if (!(this->PCIRegP[slot]->Response[0] & 0x480000)) { /* check ERROR and ILLEGAL COMMAND */
this->PCIRegP[slot]->HostControl |= SDHCI_CTRL_4BITBUS;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: properly switched to 4 bit mode\n");
#endif//me
} else {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: unable to switch to 4 bit mode -- calling Reset(slot, {CMD,DAT}_RESET)\n");
#endif//me
Reset(slot, CMD_RESET);
Reset(slot, DAT_RESET);
}
IODelay(30000);
#endif /* WIDE_BUS_MODE */
#ifdef HIGHSPEED_CARD_MODE
/* XXX - Need to check whether the card is capable before enabiling this */
#ifdef __DEBUG__
IOLog("VoodooSDHCI: HIGHSPEED_CARD_MODE \n");
#endif //me
SDCommand(slot, SD_SWITCH, SDCR6, 0x01fffff1);
IODelay(10000);
calcClock(slot, 50000000);
this->PCIRegP[slot]->HostControl |= SDHCI_CTRL_HISPD;
#endif /* HIGHSPEED_CARD_MODE */
this->PCIRegP[slot]->BlockSize = 512;
this->PCIRegP[slot]->BlockCount = 1;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: Card Init: Host Control = 0x%x\n", this->PCIRegP[slot]->HostControl);
#endif
this->PCIRegP[slot]->HostControl |= 0x1;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: Card Init: Host Control = 0x%x\n", this->PCIRegP[slot]->HostControl);
#endif
return true;
}
/*
* isCardPresent: Return true if card is present, false otherwise
* UInt8 slot: Which slot the card is in
*/
bool VoodooSDHC::isCardPresent(UInt8 slot) {
return PCIRegP[slot]->PresentState & CardInserted;
}
/*
* isCardWP: Return true if card is write protected, false otherwise
* UInt8 slot: Which slot the card is in.
*/
bool VoodooSDHC::isCardWP(UInt8 slot) {
#ifndef READONLY_DRIVER
return !(this->PCIRegP[slot]->PresentState & WPSwitchLevel);
#else
return true;
#endif
}
IOReturn VoodooSDHC::setPowerState ( unsigned long state, IOService * provider )
// Note that it is safe to ignore the whatDevice parameter.
{
switch (state) {
case 0: // sleep
#ifdef __DEBUG__
IOLog("VoodooSDHCI: sleep requested by thread: 0x%08x\n", (int)IOThreadSelf());
#endif //me
lock.lock();
break;
case 1: // wakeup
#ifdef __DEBUG__
IOLog("VoodooSDHCI: wakeup requested by thread: 0x%08x\n", (int)IOThreadSelf());
#endif //me
setup(getProvider());
lock.unlock();
break;
}
return kIOPMAckImplied;
}
/*
* LEDControl: Turns on/off LED on card slot. Not present on Dell Mini 9.
* UInt8 slot: Which slot the card is in.
* bool state: True for on, false for off
*/
void VoodooSDHC::LEDControl(UInt8 slot, bool state) {
if (state) {
this->PCIRegP[slot]->HostControl |= LedControl;
} else {
this->PCIRegP[slot]->HostControl &= ~LedControl;
}
}
/*
* Reset: Reset SDHCI host controller. Reset levels are defined by SDHCI
* standard.
* UInt8 slot: Which host controller to reset
* UInt8 type: Reset type (Command, Data, or Full)
*/
void VoodooSDHC::Reset(UInt8 slot, UInt8 type)
{
switch(type) {
case CMD_RESET:
this->PCIRegP[slot]->SoftwareReset = CMD_RESET;
break;
case DAT_RESET:
this->PCIRegP[slot]->SoftwareReset = DAT_RESET;
break;
default:
this->PCIRegP[slot]->SoftwareReset = FULL_RESET;
break;
}
while(this->PCIRegP[slot]->SoftwareReset);
}
/*
* SDCommand: Send a single command to the SDHCI Host controller. Return true on
* success, false on failure. Will spin wait indefinitely if device is
* busy.
* UInt8 slot: Which slot the card to send to is in
* UInt8 command: SDHC command as defined in SDHC Physical Interface
* UInt16 response: Response type to expect for command passed in
* UInt32 arg: Command argument as defined in SDHC Physical Interface
*/
bool VoodooSDHC::SDCommand(UInt8 slot, UInt8 command, UInt16 response,
UInt32 arg) {
if (command != 0) {
while(this->PCIRegP[slot]->PresentState & ComInhibitCMD);
}
//if(command 1= COMMANDS?)
//{
//Wait for DAT to free up
//while(this->PCIRegP[slot]->PresentState & ComInhibitDAT);
//}
switch(response) { //See SD Host Controller Spec Version 2.00 Page 30
case R0:
response = 0;
break;
case R1:
response = BIT4|BIT3|BIT1;
break;
case R1b:
response = BIT4|BIT3|BIT1|BIT0;
break;
case R2:
response = BIT3|BIT0;
break;
case R3:
response = BIT1;
break;
case R4:
response = BIT1;
break;
case R5:
response = BIT4|BIT3|BIT1;
break;
case R5b:
response = BIT4|BIT3|BIT1|BIT0;
break;
case R6:
response = BIT4|BIT3|BIT1;
break;
case R7:
response = BIT4|BIT3|BIT1;
break;
}
this->PCIRegP[slot]->Argument = arg;
if (command == 17 || command == 24)
response |= BIT5;
if (command == SD_READ_MULTIPLE_BLOCK) {
response |= BIT5;
this->PCIRegP[0]->TransferMode =
SDHCI_TRNS_READ | SDHCI_TRNS_MULTI |
SDHCI_TRNS_BLK_CNT_EN | SDHCI_TRNS_ACMD12
#ifdef USE_SDMA
| SDHCI_TRNS_DMA
#endif
;
}
if (command == SD_WRITE_MULTIPLE_BLOCK) {
response |= BIT5;
this->PCIRegP[0]->TransferMode = SDHCI_TRNS_MULTI |
SDHCI_TRNS_BLK_CNT_EN | SDHCI_TRNS_ACMD12
#ifdef USE_SDMA
| SDHCI_TRNS_DMA
#endif
;
}
this->PCIRegP[slot]->Command = (command << 8) | response;
// IOLog("Command: %d", (command << 8) | response);
return true;
}
/*
* calcClock: Calculate card clock rate. See SDHCI Host Controller spec
* for details on calculation. Must be called after cardInit.
* UInt8 slot: Host controller/slot number
* UInt32 clockspeed: Maximum desired clock speed
*/
bool VoodooSDHC::calcClock(UInt8 slot, UInt32 clockspeed) {
UInt32 baseClock;
UInt32 div;
this->PCIRegP[slot]->ClockControl = 0;
this->PCIRegP[slot]->ClockControl = 0;
this->PCIRegP[slot]->ClockControl |= BIT0;
while(!this->PCIRegP[slot]->ClockControl & BIT1);
baseClock = ((this->PCIRegP[slot]->Capabilities[0] & 0x3F00) >> 8);
baseClock *= 1000000;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: BaseClock :: %dMHz\n", baseClock/1000000);
#endif //me
for(div=1;(baseClock / div) > clockspeed;div <<= 1);
#ifdef __DEBUG__
IOLog("VoodooSDHCI: SD Clock :: %dKHz\n", (baseClock/div)/1000);
#endif //me
div = (div<<7) & 0xFF000;
this->PCIRegP[slot]->ClockControl |= div;
this->PCIRegP[slot]->ClockControl |= BIT2;
return true;
}
/*
* powerSD: Turn on power to SD Card. Must pay attention to voltage
* level supported. This is determined from the Host capability
* register.
* UInt8 slot: Slot the card is in.
*/
bool VoodooSDHC::powerSD(UInt8 slot) {
this->PCIRegP[slot]->PowerControl = 0;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: in power_sd(slot) function :: 0x%x\n", this->PCIRegP[slot]->Capabilities[0]);
#endif
if(this->PCIRegP[slot]->Capabilities[0] & CR3v3Support) {
this->PCIRegP[slot]->PowerControl |= HC3v3;
} else if(this->PCIRegP[slot]->Capabilities[0] & CR3v0Support) {
this->PCIRegP[slot]->PowerControl |= HC3v0;
} else if(this->PCIRegP[slot]->Capabilities[0] & CR1v8Support) {
this->PCIRegP[slot]->PowerControl |= HC1v8;
}
this->PCIRegP[slot]->PowerControl |= SDPower;
return true;
}
/*
* parseCID: Parse Card Idenitification information
* UInt8 slot: slot the card is in
*/
void VoodooSDHC::parseCID(UInt8 slot) {
this->SDCIDReg[slot].MID = (UInt8)(this->PCIRegP[slot]->Response[3] & 0xFF000000) >> 24;
this->SDCIDReg[slot].OID = (UInt16)(this->PCIRegP[slot]->Response[3] & 0xFFFF00) >> 8;
this->SDCIDReg[slot].PNM[0] = (UInt8)(this->PCIRegP[slot]->Response[3] & 0xFF);
this->SDCIDReg[slot].PNM[1] = (UInt8)((this->PCIRegP[slot]->Response[2] & 0xFF000000) >> 24);
this->SDCIDReg[slot].PNM[2] = (UInt8)((this->PCIRegP[slot]->Response[2] & 0xFF0000) >> 16);
this->SDCIDReg[slot].PNM[3] = (UInt8)((this->PCIRegP[slot]->Response[2] & 0xFF00) >> 8);
this->SDCIDReg[slot].PNM[4] = (UInt8)(this->PCIRegP[slot]->Response[2] & 0xFF);
this->SDCIDReg[slot].PNM[5] = 0;
this->SDCIDReg[slot].PRV[0] = (UInt8)(this->PCIRegP[slot]->Response[1] & 0xF0000000) >> 28;
this->SDCIDReg[slot].PRV[1] = (UInt8)(this->PCIRegP[slot]->Response[1] & 0xF000000) >> 24;
this->SDCIDReg[slot].PSN = (this->PCIRegP[slot]->Response[1] & 0xFFFFFF) << 8;
this->SDCIDReg[slot].PSN |= (this->PCIRegP[slot]->Response[0] & 0xFF000000) >> 24;
this->SDCIDReg[slot].MDT[0] = (UInt8)(this->PCIRegP[slot]->Response[0] & 0xFF000) >> 12;
this->SDCIDReg[slot].MDT[1] = (UInt8)(this->PCIRegP[slot]->Response[1] & 0xF00) >> 8;
}
/*
* parseCSD: Parse CSD information
* UInt8 slot: slot the card is in
*/
void VoodooSDHC::parseCSD(UInt8 slot) {
switch ((UInt8)((this->PCIRegP[slot]->Response[3] & 0xC00000) >> 22)) {
case 0: // version 1
{
UInt8 blLen = (UInt8)((PCIRegP[slot]->Response[2] & 0xF00) >> 8);
UInt16 cSize = (UInt16)((PCIRegP[slot]->Response[2] & 0x3) << 10);
cSize |= (UInt16)((PCIRegP[slot]->Response[1] & 0xFFC00000) >> 22);
UInt8 cSizeMult = (UInt8)((PCIRegP[slot]->Response[1] & 0x000380) >> 7);
int large_to_small = (1 << (blLen)) / 512;
maxBlock = (cSize+1) * large_to_small *
(1 << (cSizeMult+2)) - 1;
}
break;
case 1: // version 2
{
int units = (UInt16)(PCIRegP[slot]->Response[1] >> 24);
units |= (PCIRegP[slot]->Response[1] & 0x00ff0000) >> 8;
units |= (PCIRegP[slot]->Response[2] & 0x3f) << 16;
maxBlock = (units + 1) * 1024;
}
break;
default:
// donno how to bail out...
;
}
}
/*
* reportRemovability: Apple API function. An SD Card is a removeable
* device. Returns an I/O success.
* bool *isRemovable: Passed back. Always return true.
*/
IOReturn VoodooSDHC::reportRemovability(bool *isRemovable) {
*isRemovable = true;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportRemovability\n");
#endif
return kIOReturnSuccess;
}
/*
* reportWriteProtection: Apple API function. Returns whether the card is
* write protected. Returns an I/O success.
* bool *isWriteProtected: Passed back. Always return true.
*/
IOReturn VoodooSDHC::reportWriteProtection(bool *isWriteProtected) {
// XXX - how is this supposed to work for multi-slot???
*isWriteProtected = isCardWP( 0 );
//*isWriteProtected = true;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportWriteProtection\n");
#endif
return kIOReturnSuccess;
}
/*
* setWriteCacheState: Apple API function. This driver does not support
* write cacheing. Returns an I/O success.
* bool enabled: Enable/disable cache
*/
IOReturn VoodooSDHC::setWriteCacheState(bool enabled) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: setWriteCacheState\n");
#endif
return kIOReturnSuccess;
}
/*
* reportPollRequirements: Apple API function. Report back requirements for
* polling. This driver must be polled, but the poll
* is cheap.
* bool *pollRequired: This is a return value from this function
* bool *pollIsExpensive: This is a return value from this function
*/
IOReturn VoodooSDHC::reportPollRequirements(bool *pollRequired, bool *pollIsExpensive)
{
*pollRequired = false;
*pollIsExpensive = false;
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::reportMediaState(bool *mediaPresent, bool *changedState)
{
IOLockLock(mediaStateLock);
bool presence = isCardPresent(0);
if (cardPresence == kCardRemount) {
*changedState = true;
cardPresence = kCardNotPresent;
} else if ((cardPresence == kCardIsPresent) == presence) {
*changedState = false;
} else {
*changedState = true;
if (presence) {
Reset(0, FULL_RESET);
cardInit(0);
::OSSynchronizeIO();
cardPresence = kCardIsPresent;
} else {
cardPresence = kCardNotPresent;
}
}
*mediaPresent = cardPresence == kCardIsPresent;
IOLockUnlock(mediaStateLock);
return kIOReturnSuccess;
}
#ifndef __LP64__
IOReturn VoodooSDHC::reportMaxWriteTransfer(UInt64 blockSize,
UInt64 *max) {
//Max blocks we can read at once (see Block Count Register)
*max = 64 * blockSize;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportMaxWriteTransfer\n");
#endif /* end DEBUG */
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::reportMaxReadTransfer (UInt64 blockSize,
UInt64 *max) {
//Max blocks we can read at once (see Block Count Register)
*max = 65536 * blockSize;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportMaxReadTransfer\n");
#endif /* end DEBUG */
return kIOReturnSuccess;
}
#endif /* !__LP64__ */
IOReturn VoodooSDHC::reportMaxValidBlock(UInt64 *maxBlock) {
*maxBlock = this->maxBlock;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportMaxValidBlock\n");
#endif
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::reportLockability(bool *isLockable) {
*isLockable = false;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportLockability\n");
#endif
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::reportEjectability(bool *isEjectable) {
*isEjectable = false;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportEjectability\n");
#endif
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::reportBlockSize(UInt64 *blockSize) {
// Read/write block size is always 512 bytes. Card's block size
// is reported but only used in computations of size, not access.
*blockSize = 512;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: reportBlockSize: %d\n", *blockSize);
#endif
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::getWriteCacheState(bool *enabled) {
*enabled = false;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: getWriteCacheState\n");
#endif
return kIOReturnSuccess;
}
char * VoodooSDHC::getVendorString(void) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: getVendorString\n");
#endif
return("Generic");
}
char * VoodooSDHC::getRevisionString(void) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: getRevisionString\n");
#endif
return("2");
}
char * VoodooSDHC::getProductString(void) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: getProductString\n");
#endif
return("SDHCI Controller");
}
char * VoodooSDHC::getAdditionalDeviceInfoString(void) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: getAdditionalDeviceInfoString\n");
#endif
return("VoodooSDHCI:getAdditionalDeviceInfoString");
}
IOReturn VoodooSDHC::doSynchronizeCache(void) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: doSynchronizeCache\n");
#endif
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::doLockUnlockMedia(bool doLock) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: doLockUnlockMedia\n");
#endif
return kIOReturnUnsupported;
}
UInt32 VoodooSDHC::doGetFormatCapacities(UInt64 *capacities, UInt32 capacitiesMaxCount) const {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: doGetFormatCapacities\n");
#endif
return kIOReturnSuccess;
}
IOReturn VoodooSDHC::doFormatMedia(UInt64 byteCapacity) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: doFormatMedia\n");
#endif
return kIOReturnUnsupported;
}
IOReturn VoodooSDHC::doEjectMedia(void) {
#ifdef __DEBUG__
IOLog("VoodooSDHCI: doEjectMedia\n");
#endif
return kIOReturnUnsupported;
}
bool VoodooSDHC::waitIntStatus(UInt32 maskBits)
{
// roughly 5 seconds before timeout
for (int cnt = 0; cnt < 500000; cnt++) {
while (1) {
UInt32 nis = PCIRegP[0]->NormalIntStatus;
if (nis & ErrorInterrupt) {
return false;
}
if (nis & maskBits) {
PCIRegP[0]->NormalIntStatus = nis | maskBits;
return true;
}
}
::IODelay(10);
}
return false;
}
/*
* readBlockMulti_pio: Read a set of blocks using multi-block reads and PIO
* not DMA mode. The host controller must be locked when
* this function is called.
* IOMemoryDescriptor *buffer: Buffer operation class. Defines
* read/write, address of operation, etc.
* UInt32 block: Block offset to read/write
* UInt32 nblks: Block count to read/write
* UInt32 offset: Offset from beginning of transfer - where in
* final buffer we should begin placing data
*/
IOReturn VoodooSDHC::readBlockMulti_pio(IOMemoryDescriptor *buffer,
UInt32 block, UInt32 nblks,
UInt32 offset) {
UInt8 buff[512]; // Temporary storage for one block
UInt32 *pBuff;
IOReturn ret = kIOReturnError;
#ifdef __DEBUG__
IOLog("VoodooSDHCI: readBlockMulti_pio: block = %d, nblks = %d\n", block, nblks);
#endif /* __DEBUG__ */
pBuff = (UInt32*)buff;
#ifndef NO_RESET_WAR
// Reset card before every operation. The Linux driver
// does this for this host controller. Not sure why.
Reset(0, CMD_RESET);
Reset(0, DAT_RESET);
#endif
/* Enable all interrupts */
this->PCIRegP[0]->NormalIntStatusEn = -1;
this->PCIRegP[0]->ErrorIntStatusEn = -1;
/* Clear pending interrupts */
this->PCIRegP[0]->NormalIntStatus =
(BuffReadReady | XferComplete | CmdComplete);
/* Set maximum timeout value */