VoodooSDHCI

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Root/trunk/VoodooSDHC.h

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1#ifndef _VoodooSDHC_H_␊
2#define _VoodooSDHC_H_␊
3#include "License.h"␊
4#define SLOT1 0␊
5#define SLOT2 1␊
6#define SLOT3 2␊
7#define SLOT4 3␊
8#define SLOT5 4␊
9#define SLOT6 5␊
10␊
11/* General IOKit includes */␊
12#include <IOKit/IOLib.h>␊
13#include <IOKit/IOMessage.h>␊
14#include <IOKit/IOService.h>␊
15#include <IOKit/IOFilterInterruptEventSource.h>␊
16#include <IOKit/IOTimerEventSource.h>␊
17#include <IOKit/storage/IOBlockStorageDriver.h>␊
18#include <IOKit/storage/IOBlockStorageDevice.h>␊
19#include <IOKit/IOBufferMemoryDescriptor.h>␊
20#include <libkern/locks.h>␊
21#include "SD_DataTypes.h"␊
22␊
23class VoodooSDHC : public IOBlockStorageDevice␊
24{␊
25␉␊
26␉OSDeclareDefaultStructors ( VoodooSDHC )␊
27␉␊
28protected:␊
29␊
30public:␊
31␉␊
32␉// Overrides from IOService␊
33␉␊
34␉virtual bool␉init ␉( OSDictionary * propertyTable );␊
35␉virtual void␉free␉();␊
36␉virtual bool ␉start ␉( IOService * provider );␊
37␉virtual void ␉stop ␉( IOService * provider );␊
38␊
39private:␊
40␉// This lock protects block I/O access to the card reader␊
41␉class Lock {␊
42␉␉IOLock␉*mutex_;␊
43␉␉bool␉locked_;␊
44␉␉int␉␉waiting_;␊
45␉public:␊
46␉␉void init() {␊
47␉␉␉mutex_ = IOLockAlloc();␊
48␉␉␉locked_ = false;␊
49␉␉␉waiting_ = 0;␊
50␉␉}␊
51␉␉void free() {␊
52␉␉␉IOLockFree(mutex_);␊
53␉␉}␊
54␉␉void lock() {␊
55␉␉␉IOLockLock(mutex_);␊
56␉␉␉if (locked_) {␊
57␉␉␉␉waiting_++;␊
58␉␉␉␉do {␊
59␉␉␉␉␉IOLockSleep(mutex_, mutex_, THREAD_UNINT);␊
60␉␉␉␉} while (locked_);␊
61␉␉␉␉waiting_--;␊
62␉␉␉}␊
63␉␉␉locked_ = true;␊
64␉␉␉IOLockUnlock(mutex_);␊
65␉␉}␊
66␉␉void unlock() {␊
67␉␉␉IOLockLock(mutex_);␊
68␉␉␉locked_ = false;␊
69␉␉␉if (waiting_)␊
70␉␉␉␉IOLockWakeup(mutex_, mutex_, true);␊
71␉␉␉IOLockUnlock(mutex_);␊
72␉␉}␊
73␉} lock;␊
74␉␊
75#ifdef USE_SDMA␊
76␉IOLock␉␉␉*sdmaCond; // this lock handles I/O interrupt␊
77␉IOLock␉␉␉*mediaStateLock; // this lock serializes reportMediaState␊
78␉IOBufferMemoryDescriptor *sdmaBuffDesc;␊
79␉UInt32␉␉␉physSdmaBuff;␊
80␉void␉␉␉*virtSdmaBuff;␊
81␉IOWorkLoop␉␉*workLoop;␊
82␉IOFilterInterruptEventSource *interruptSrc;␊
83␉IOTimerEventSource␉*timerSrc;␊
84␉virtual IOWorkLoop *getWorkLoop() const { return workLoop; }␊
85#endif␊
86␉␊
87␉IOMemoryMap␉␉*PCIRegMap;␊
88␉struct␉␉␉SDHCIRegMap_t *PCIRegP[6];␊
89␉struct␉␉␉SDCIDReg_t SDCIDReg[6];␊
90␉UInt32␉␉␉RCA;␊
91␉UInt32␉␉␉maxBlock;␊
92␉enum {␊
93␉␉kCardNotPresent,␊
94␉␉kCardIsPresent,␊
95␉␉kCardRemount␊
96␉} cardPresence;␊
97␉bool␉␉␉isHighCapacity;␊
98␉␊
99␉bool␉␉␉setup(IOService *provider);␊
100␉void␉␉␉dumpRegs(UInt8 slot);␊
101␉bool␉␉␉isCardPresent(UInt8 slot);␊
102␉bool␉␉␉isCardWP(UInt8 slot);␊
103␉bool␉␉␉cardInit( UInt8 slot );␊
104␉void␉␉␉LEDControl(UInt8 slot, bool state);␊
105␉void␉␉␉Reset( UInt8 slot, UInt8 type );␊
106␉bool␉␉␉SDCommand( UInt8 slot, UInt8 command, UInt16 response, UInt32 arg);␊
107␉bool␉␉␉calcClock(UInt8 slot, UInt32 clockspeed);␊
108␉bool␉␉␉powerSD(UInt8 slot);␊
109␉void␉␉␉parseCID(UInt8 slot);␊
110␉void␉␉␉parseCSD(UInt8 slot);␊
111␉␊
112//␉IOReturn␉␉requestIdle(void); /* 10.6.0 */␊
113//␉IOReturn␉␉doDiscard(UInt64 block, UInt64 nblks); /* 10.6.0 */␊
114␉IOReturn␉␉reportRemovability(bool *isRemovable);␊
115␉IOReturn␉␉reportWriteProtection(bool *isWriteProtected);␊
116␉IOReturn␉␉setWriteCacheState(bool enabled);␊
117␉IOReturn␉␉reportPollRequirements(bool *pollRequired, bool *pollIsExpensive);␊
118␉IOReturn␉␉reportMediaState(bool *mediaPresent, bool *changedState);␊
119␉IOReturn␉␉reportMaxValidBlock(UInt64 *maxBlock);␊
120␉IOReturn␉␉reportLockability(bool *isLockable);␊
121␉IOReturn␉␉reportEjectability(bool *isEjectable);␊
122␉IOReturn␉␉reportBlockSize(UInt64 *blockSize);␊
123␉IOReturn␉␉getWriteCacheState(bool *enabled);␊
124␉IOReturn␉␉setPowerState( unsigned long whichState, IOService * whatDevice );␊
125␉char *␉␉␉getVendorString(void);␊
126␉char *␉␉␉getRevisionString(void);␊
127␉char *␉␉␉getProductString(void);␊
128␉char *␉␉␉getAdditionalDeviceInfoString(void);␊
129␉IOReturn␉␉doSynchronizeCache(void);␊
130␉IOReturn␉␉doLockUnlockMedia(bool doLock);␊
131␉UInt32␉␉␉doGetFormatCapacities(UInt64 *capacities, UInt32 capacitiesMaxCount) const;␊
132␉IOReturn␉␉doFormatMedia(UInt64 byteCapacity);␊
133␉IOReturn␉␉doEjectMedia(void);␊
134#ifdef __LP64__␊
135 virtual IOReturn␉doAsyncReadWrite(IOMemoryDescriptor *buffer,␊
136␉␉␉␉␉␉␉␉␉␉ UInt64 block, UInt64 nblks,␊
137␉␉␉␉␉␉␉␉␉␉ IOStorageAttributes *attributes,␊
138␉␉␉␉␉␉␉␉␉␉ IOStorageCompletion *completion);␊
139#endif␊
140#ifndef __LP64__␊
141␉IOReturn␉␉doAsyncReadWrite(IOMemoryDescriptor *buffer, ␊
142␉␉␉␉␉␉␉␉␉ UInt32 block, UInt32 nblks,␊
143␉␉␉␉␉␉␉␉␉ IOStorageCompletion completion); //completion was start␊
144␉IOReturn␉␉reportMaxWriteTransfer(UInt64 blockSize, UInt64 *max);␊
145␉IOReturn␉␉reportMaxReadTransfer (UInt64 blockSize, UInt64 *max);␊
146#endif␊
147␉IOReturn␉␉sdma_access(IOMemoryDescriptor *buffer, UInt32 block, UInt32 nblks, bool read);␊
148␉IOReturn␉␉readBlockMulti_pio(IOMemoryDescriptor *buffer, UInt32 block, UInt32 nblks,␊
149␉␉␉␉␉␉␉UInt32 offset);␊
150␉IOReturn␉␉readBlockSingle_pio(UInt8 *buff, UInt32 block);␊
151␉IOReturn␉␉writeBlockMulti_pio(IOMemoryDescriptor *buffer, UInt32 block, UInt32 nblks,␊
152␉␉␉␉␉␉␉UInt32 offset);␊
153␉IOReturn␉␉writeBlockSingle_pio(IOMemoryDescriptor *buffer, UInt32 block,␊
154␉␉␉␉␉␉␉UInt32 offset);␊
155␉bool␉␉␉waitIntStatus(UInt32 maskBits);␊
156␉void␉␉␉handleInterrupt();␊
157␉void␉␉␉handleTimer();␊
158␉␊
159␉static void interruptHandler(OSObject *owner, IOInterruptEventSource *source, int count);␊
160␉static bool interruptFilter(OSObject *owner, IOFilterInterruptEventSource *source);␊
161␉static void timerHandler(OSObject *owner, IOTimerEventSource *sender);␊
162};␊
163␊
164#endif /* _VoodooSDHC_H_ */␊
165

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