// Copyright (c) 1999-2010 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
//
#include <drivers/sdcard.h>
#include "OstTraceDefinitions.h"
#ifdef OST_TRACE_COMPILER_IN_USE
#include "../../../../include/drivers/locmedia_ost.h"
#ifdef __VC32__
#pragma warning(disable: 4127) // disabling warning "conditional expression is constant"
#endif
#include "sdcardTraces.h"
#endif
// ======== TSDCard ========
TSDCard::TSDCard()
: iProtectedAreaSize(0), iPARootDirEnd(KPARootDirEndUnknown), iClientCountSD(0)
{
}
TInt64 TSDCard::DeviceSize64() const
//
// returns the SD device size
//
{
OstTraceFunctionEntry1( TSDCARD_DEVICESIZE64_ENTRY, this );
if(iFlags & KSDCardIsSDCard)
{
return (IsHighCapacity()) ? 512 * 1024 * (TInt64)(1 + CSD().CSDField(69, 48)) : TMMCard::DeviceSize64();
}
return(TMMCard::DeviceSize64());
}
TUint32 TSDCard::PreferredWriteGroupLength() const
//
// return SD erase sector size, (SECTOR_SIZE + 1) * 2 ** WRITE_BLK_LEN
//
{
OstTraceFunctionEntry1( TSDCARD_PREFERREDWRITEGROUPLENGTH_ENTRY, this );
if(iFlags & KSDCardIsSDCard)
{
TSDCSD sdcsd(CSD());
return (sdcsd.SDSectorSize() + 1) * (1 << sdcsd.WriteBlLen());
}
return(TMMCard::PreferredWriteGroupLength());
}
TInt TSDCard::GetFormatInfo(TLDFormatInfo& /*aFormatInfo*/) const
{
return KErrNotSupported;
}
TUint32 TSDCard::MinEraseSectorSize() const
{
if(iFlags&KSDCardIsSDCard)
{
TSDCSD sdcsd(CSD());
if (sdcsd.SDEraseBlkEn())
return sdcsd.WriteBlockLength(); // raised logarithm
else
return (sdcsd.SDSectorSize() + 1) * sdcsd.WriteBlockLength();
}
return TMMCard::MinEraseSectorSize();
}
const TUint32 KEraseSectorSizeShift = 8; // KEraseSectorSizeShift determines the multiple of the sector size
// that can be erased in one operation
TUint32 TSDCard::EraseSectorSize() const
{
if(iFlags&KSDCardIsSDCard)
{
TSDCSD sdcsd(CSD());
return ((sdcsd.SDSectorSize() + 1) * sdcsd.WriteBlockLength()) << KEraseSectorSizeShift;
}
return TMMCard::EraseSectorSize();
}
const TInt KDefaultBlockLen = 9; // 2^9 = 512 bytes
const TInt KDefaultBlockLenInBytes = 1 << KDefaultBlockLen; // 2^9 = 512 bytes
const TInt KTwoGbyteSDBlockLen = 10; // 2^10 = 1024 bytes
const TInt KFourGbyteSDBlockLen = 11; // 2^11 = 2048 bytes
TInt TSDCard::GetEraseInfo(TMMCEraseInfo& aEraseInfo) const
//
// Return info. on erase services for this card
//
{
OstTraceFunctionEntry1( TSDCARD_GETERASEINFO_ENTRY, this );
// SD Controllers support MMC cards too. Check if we are really dealing with an SD card
if(!(iFlags&KSDCardIsSDCard))
return(TMMCard::GetEraseInfo(aEraseInfo));
if (CSD().CCC() & KMMCCmdClassErase)
{
// This card supports erase cmds. However, SD cards don't support Erase Group commands (i.e. CMD35, CMD36).
OstTrace0( TRACE_INTERNALS, TSDCARD_GETERASEINFO, "Card supports erase class commands" );
aEraseInfo.iEraseFlags=KMMCEraseClassCmdsSupported;
// Return the preferred size to be used as the unit for erase operations.
TSDCSD sdcsd(CSD());
TUint32 prefSize=((sdcsd.SDSectorSize() + 1) * sdcsd.WriteBlockLength());
prefSize<<=KEraseSectorSizeShift; // Use multiples of the sector size for each erase operation
aEraseInfo.iPreferredEraseUnitSize=prefSize;
// Return the smallest size that can be used as the unit for erase operations
if (sdcsd.SDEraseBlkEn())
{
aEraseInfo.iMinEraseSectorSize = KDefaultBlockLenInBytes;
}
else
{
aEraseInfo.iMinEraseSectorSize=(sdcsd.SDSectorSize() + 1) * sdcsd.WriteBlockLength();
}
}
else
aEraseInfo.iEraseFlags=0;
OstTraceFunctionExitExt( TSDCARD_GETERASEINFO_EXIT, this, KErrNone );
return KErrNone;
}
TInt TSDCard::MaxReadBlLen() const
/**
* Returns the maximum read block length supported by the card encoded as a logarithm
* Normally this is the same as the READ_BL_LEN field in the CSD register,
* but for high capacity cards (> 2GB) this is set to a maximum of 512 bytes,
* if possible, to try to avoid compatibility issues.
*/
{
OstTraceFunctionEntry1( TSDCARD_MAXREADBLLEN_ENTRY, this );
if (IsSDCard())
{
TInt blkLenLog2 = CSD().ReadBlLen();
if (blkLenLog2 == KTwoGbyteSDBlockLen || blkLenLog2 == KFourGbyteSDBlockLen)
{
// The SD card spec. makes a special case for 2GByte cards,
// ...and some manufacturers apply the same method to support 4G cards
__KTRACE_OPT(KPBUS1, Kern::Printf("=mmc:mrbl > 2GB SD"));
OstTrace0( TRACE_INTERNALS, TSDCARD_MAXREADBLLEN, "SD Card > 2GB" );
blkLenLog2 = KDefaultBlockLen;
}
OstTraceFunctionExitExt( TSDCARD_MAXREADBLLEN_EXIT, this, blkLenLog2 );
return blkLenLog2;
}
else // MMC card
{
TInt ret = TMMCard::MaxReadBlLen();
OstTraceFunctionExitExt( DUP1_TSDCARD_MAXREADBLLEN_EXIT, this, ret );
return ret;
}
}
TInt TSDCard::MaxWriteBlLen() const
/**
* Returns the maximum write block length supported by the card encoded as a logarithm
* Normally this is the same as the WRITE_BL_LEN field in the CSD register,
* but for high capacity cards (> 2GB) this is set to a maximum of 512 bytes,
* if possible, to try to avoid compatibility issues.
*/
{
OstTraceFunctionEntry1( TSDCARD_MAXWRITEBLLEN_ENTRY, this );
if (IsSDCard())
{
TInt blkLenLog2 = CSD().WriteBlLen();
if (blkLenLog2 == KTwoGbyteSDBlockLen || blkLenLog2 == KFourGbyteSDBlockLen)
{
// The SD card spec. makes a special case for 2GByte cards,
// ...and some manufacturers apply the same method to support 4G cards
__KTRACE_OPT(KPBUS1, Kern::Printf("=mmc:mwbl > 2GB SD"));
OstTrace0( TRACE_INTERNALS, TSDCARD_MAXWRITEBLLEN, "SD Card > 2GB" );
blkLenLog2 = KDefaultBlockLen;
}
OstTraceFunctionExitExt( TSDCARD_MAXWRITEBLLEN_EXIT, this, blkLenLog2 );
return blkLenLog2;
}
else // MMC card
{
TInt ret = TMMCard::MaxWriteBlLen();
OstTraceFunctionExitExt( DUP1_TSDCARD_MAXWRITEBLLEN_EXIT, this, ret );
return ret;
}
}
TUint TSDCard::MaxTranSpeedInKilohertz() const
/**
* Returns the maximum supported clock rate for the card, in Kilohertz.
* @return Speed, in Kilohertz
*/
{
OstTraceFunctionEntry1( TSDCARD_MAXTRANSPEEDINKILOHERTZ_ENTRY, this );
TUint maxClk = TMMCard::MaxTranSpeedInKilohertz();
if (IsSDCard())
{
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >TSDCard(%d): MaxTranSpeedInKilohertz: %d",(iIndex-1),maxClk));
#ifdef _DEBUG
//MaxClk for SD should only be either 25000KHz or 50000KHz
if ( (maxClk != KSDDTClk25MHz) && (maxClk != KSDDTClk50MHz) )
{
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack: Non-Compliant DT Clock"));
OstTrace0( TRACE_INTERNALS, TSDCARD_MAXTRANSPEEDINKILOHERTZ, "Non-Compliant DT Clock" );
}
#endif
if (maxClk > KSDDTClk50MHz)
{
//Clock rate exceeds SD possible max clock rate
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack: Tuning DT Clock down to 50MHz"));
OstTrace0( TRACE_INTERNALS, TSDCARD_MAXTRANSPEEDINKILOHERTZ1, "Tuning DT Clock down to 50MHz" );
maxClk = KSDDTClk50MHz;
}
}
OstTraceFunctionExitExt( TSDCARD_MAXTRANSPEEDINKILOHERTZ_EXIT, this, maxClk );
return maxClk;
}
// ======== TSDCardArray ========
EXPORT_C TInt TSDCardArray::AllocCards()
//
// allocate TSDCard objects for iCards and iNewCardsArray. This function
// is called at bootup as part of stack allocation so there is no cleanup
// if it fails.
//
{
OstTraceFunctionEntry1( TSDCARDARRAY_ALLOCCARDS_ENTRY, this );
for (TInt i = 0; i < (TInt) KMaxMMCardsPerStack; ++i)
{
// zeroing the card data used to be implicit because embedded in
// CBase-derived DMMCStack.
if ((iCards[i] = new TSDCard) == 0)
{
OstTraceFunctionExitExt( TSDCARDARRAY_ALLOCCARDS_EXIT, this, KErrNoMemory );
return KErrNoMemory;
}
iCards[i]->iUsingSessionP = 0;
if ((iNewCards[i] = new TSDCard) == 0)
{
OstTraceFunctionExitExt( DUP1_TSDCARDARRAY_ALLOCCARDS_EXIT, this, KErrNoMemory );
return KErrNoMemory;
}
}
OstTraceFunctionExitExt( DUP2_TSDCARDARRAY_ALLOCCARDS_EXIT, this, KErrNone );
return KErrNone;
}
void TSDCardArray::AddCardSDMode(TUint aCardNumber,const TUint8* aCID,TRCA* aNewRCA)
//
// Add an MMC card straight to the main card array in slot 'aCardNumber'. Save
// the CID value in the slot. Return a RCA for the card.
//
{
OstTraceFunctionEntryExt( TSDCARDARRAY_ADDCARDSDMODE_ENTRY, this );
TRCA rca=0;
// First, lets check if the same card was here before. If it was, keep the same RCA
if (Card(aCardNumber).IsPresent() && Card(aCardNumber).iCID==aCID)
rca=Card(aCardNumber).iRCA;
else
{
// Allocate and new RCA and store the CID in the slot selected
__ASSERT_ALWAYS( (rca=iOwningStack->iRCAPool.GetFreeRCA())!=0,DMMCSocket::Panic(DMMCSocket::EMMCNoFreeRCA) );
Card(aCardNumber).iCID=aCID;
if ( Card(aCardNumber).iRCA != 0 )
iOwningStack->iRCAPool.UnlockRCA(Card(aCardNumber).iRCA);
Card(aCardNumber).iRCA=rca;
iOwningStack->iRCAPool.LockRCA(Card(aCardNumber).iRCA);
}
Card(aCardNumber).iIndex=(aCardNumber+1); // Mark card as being present
*aNewRCA=rca;
OstTraceFunctionExit1( TSDCARDARRAY_ADDCARDSDMODE_EXIT, this );
}
TInt TSDCardArray::StoreRCAIfUnique(TUint aCardNumber,TRCA& anRCA)
//
// Check that no other array element has the same RCA value 'anRCA'. If no
// no duplication then store in slot 'aCardNumber'.
//
{
OstTraceExt3(TRACE_FLOW, TSDCARDARRAY_STORERCAIFUNIQUE_ENTRY ,"TSDCardArray::StoreRCAIfUnique;aCardNumber=%x;anRCA=%x;this=%x", aCardNumber, (TUint) anRCA, (TUint) this);
if (anRCA==0)
{
OstTraceFunctionExitExt( TSDCARDARRAY_STORERCAIFUNIQUE_EXIT, this, KErrGeneral );
return KErrGeneral;
}
Card(aCardNumber).iRCA=0;
// Now let's look if we've seen this card before
for ( TUint i=0 ; i<iOwningStack->iMaxCardsInStack ; i++ )
{
if ( Card(i).IsPresent() && Card(i).iRCA==anRCA )
{
OstTraceFunctionExitExt( DUP1_TSDCARDARRAY_STORERCAIFUNIQUE_EXIT, this, KErrInUse );
return KErrInUse;
}
}
Card(aCardNumber).iRCA=anRCA;
Card(aCardNumber).iIndex=(aCardNumber+1); // Mark card as being present
OstTraceFunctionExitExt( DUP2_TSDCARDARRAY_STORERCAIFUNIQUE_EXIT, this, KErrNone );
return KErrNone;
}
EXPORT_C void TSDCardArray::DeclareCardAsGone(TUint aCardNumber)
//
// reset SD specific fields to initial values and then reset generic MultiMediaCard
//
{
OstTraceFunctionEntryExt( TSDCARDARRAY_DECLARECARDASGONE_ENTRY, this );
Card(aCardNumber).SetBusWidth(1);
TMMCardArray::DeclareCardAsGone(aCardNumber);
OstTraceFunctionExit1( TSDCARDARRAY_DECLARECARDASGONE_EXIT, this );
}
// ======== DSDSession ========
void DSDSession::FillAppCommandDesc(TMMCCommandDesc& aDesc, TSDAppCmd aCmd)
{
OstTraceFunctionEntry0( DSDSESSION_FILLAPPCOMMANDDESC_ENTRY );
aDesc.iCommand = (TMMCCommandEnum) aCmd;
aDesc.iArgument = 0; // set stuff bits to zero
FillAppCommandDesc(aDesc);
OstTraceFunctionExit0( DSDSESSION_FILLAPPCOMMANDDESC_EXIT );
}
void DSDSession::FillAppCommandDesc(TMMCCommandDesc& aDesc, TSDAppCmd aCmd, TMMCArgument aArg)
{
OstTraceFunctionEntry0( DUP1_DSDSESSION_FILLAPPCOMMANDDESC_ENTRY );
aDesc.iCommand = (TMMCCommandEnum) aCmd;
aDesc.iArgument = aArg;
FillAppCommandDesc(aDesc);
OstTraceFunctionExit0( DUP1_DSDSESSION_FILLAPPCOMMANDDESC_EXIT );
}
const TUint32 CCA = KMMCCmdClassApplication;
const TMMCIdxCommandSpec AppCmdSpecTable[] =
{ // Class Type Dir MBlk StopT Rsp Type Len
{ESDACmdSetBusWidth, {CCA,ECmdTypeACS, EDirNone, EFalse, EFalse, ERespTypeR1, 4}}, //ACMD6
{ESDACmdSDStatus, {CCA,ECmdTypeADTCS, EDirRead, EFalse, EFalse, ERespTypeR1, 4}}, //ACMD13
{ESDACmdSendNumWrBlocks, {CCA,ECmdTypeADTCS, EDirRead, EFalse, EFalse, ERespTypeR1, 4}}, //ACMD22
{ESDACmdSetWrBlkEraseCount, {CCA,ECmdTypeACS, EDirNone, EFalse, EFalse, ERespTypeR1, 4}}, //ACMD23
{ESDACmdSDAppOpCond, {CCA,ECmdTypeBCR, EDirNone, EFalse, EFalse, ERespTypeR3, 4}}, //ACMD41
{ESDACmdSetClrCardDetect, {CCA,ECmdTypeAC, EDirNone, EFalse, EFalse, ERespTypeR1, 4}}, //ACMD42
{ESDACmdSendSCR, {CCA,ECmdTypeADTCS, EDirRead, EFalse, EFalse, ERespTypeR1, 4}} //ACMD51
};
void DSDSession::FillAppCommandDesc(TMMCCommandDesc& aDesc)
{
OstTraceFunctionEntry0( DUP2_DSDSESSION_FILLAPPCOMMANDDESC_ENTRY );
aDesc.iSpec = FindCommandSpec(AppCmdSpecTable, aDesc.iCommand);
aDesc.iFlags = 0;
aDesc.iBytesDone = 0;
OstTraceFunctionExit0( DUP2_DSDSESSION_FILLAPPCOMMANDDESC_EXIT );
}
const TMMCIdxCommandSpec SdSpecificCmdSpecTable[] =
/**
* SD Specific Command Table
*
* - Some commands defined in the SD specification overload those defined in the MMC specification.
* This table contains the SD specific versions of those commands.
*/
{
// Class Type Dir MBlk StopT Rsp Type Len
{ESDCmdSendRelativeAddress, {KMMCCmdClassBasic, ECmdTypeBCR, EDirNone, EFalse, EFalse, ERespTypeR6, 4}}, // CMD3 : SEND_RELATIVE_ADDRESS
{ESDCmdSwitchFunction, {KMMCCmdClassSwitch,ECmdTypeADTCS, EDirRead, EFalse, EFalse, ERespTypeR1, 4}}, // CMD6 : SWITCH_FUNCTION
{ESDCmdSendIfCond, {KMMCCmdClassBasic, ECmdTypeBCR, EDirNone, EFalse, EFalse, ERespTypeR7, 4}} // CMD8 : SEND_IF_COND
};
void DSDSession::FillSdSpecificCommandDesc(TMMCCommandDesc& aDesc, TSDSpecificCmd aCmd, TMMCArgument aArg)
{
OstTraceFunctionEntry0( DSDSESSION_FILLSDSPECIFICCOMMANDDESC_ENTRY );
aDesc.iCommand = (TMMCCommandEnum) aCmd;
aDesc.iArgument = aArg;
FillSdSpecificCommandDesc(aDesc);
OstTraceFunctionExit0( DSDSESSION_FILLSDSPECIFICCOMMANDDESC_EXIT );
}
void DSDSession::FillSdSpecificCommandDesc(TMMCCommandDesc& aDesc, TSDSpecificCmd aCmd)
{
OstTraceFunctionEntry0( DUP1_DSDSESSION_FILLSDSPECIFICCOMMANDDESC_ENTRY );
aDesc.iCommand = (TMMCCommandEnum) aCmd;
aDesc.iArgument = 0; // set stuff bits to zero
FillSdSpecificCommandDesc(aDesc);
OstTraceFunctionExit0( DUP1_DSDSESSION_FILLSDSPECIFICCOMMANDDESC_EXIT );
}
void DSDSession::FillSdSpecificCommandDesc(TMMCCommandDesc& aDesc)
{
OstTraceFunctionEntry0( DUP2_DSDSESSION_FILLSDSPECIFICCOMMANDDESC_ENTRY );
aDesc.iSpec = FindCommandSpec(SdSpecificCmdSpecTable, aDesc.iCommand);
aDesc.iFlags = 0;
aDesc.iBytesDone = 0;
OstTraceFunctionExit0( DUP2_DSDSESSION_FILLSDSPECIFICCOMMANDDESC_EXIT );
}
// ======== DSDStack ========
EXPORT_C TInt DSDStack::Init()
{
OstTraceFunctionEntry1( DSDSTACK_INIT_ENTRY, this );
TInt ret = DMMCStack::Init();
OstTraceFunctionExitExt( DSDSTACK_INIT_EXIT, this, ret );
return ret;
}
const TInt KMaxRCASendLoops=3;
const TUint KSDMaxPollAttempts=25;
EXPORT_C TMMCErr DSDStack::AcquireStackSM()
//
// This macro acquires new cards in an SD Card - star topology stack.
// This means each card has its own CMD and DAT lines and can be addressed
// individually by the Controller in turn. Commands can also be broadcast
// simultaneously to the entire stack.
// It starts with the Controller reading the operating conditions of each
// card in the stack (SEND_OP_COND - ACMD41). Then, the following
// initialisation sequence is performed to each card in turn:-
// New cards in the stack are identified (ALL_SEND_CID - CMD2) and each one
// is requested to publish a relative card address (SEND_RCA - CMD3). Finally,
// the card specific data (SEND_CSD - CMD9) is read from each card.
// Note that the initialization of MMC cards are supported by this function
// if they are encountered. These require a slightly different init. procdure.
//
{
enum states
{
EStBegin=0,
EStNextFullRange,
EStSendCIDIssued,
EStIssueSendRCA,
EStSendRCACheck,
EStRCADone,
EStMoreCardsCheck,
EStEnd
};
DMMCSession& s=Session();
OstTrace1( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM, "Current session = 0x%x", &s );
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM1, "EStBegin" );
__KTRACE_OPT(KPBUS1, Kern::Printf(">DSDStack::AcquireStackSM()"));
iRCAPool.ReleaseUnlocked();
iCxCardCount=0; // Reset current card number
SMF_STATE(EStNextFullRange)
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM2, "EStNextFullRange" );
iCxCardType = ESDCardTypeUnknown;
AddressCard(iCxCardCount); // Address the next card
// Before issueing commands, see if there's actually a card present
if (!CardDetect(iCxCardCount))
SMF_GOTOS(EStMoreCardsCheck)
// Card Previously Marked as Corrupt do not re-initialise
if ((CardArray().CardP(iCxCardCount)->iFlags)& KSDCardIsCorrupt)
{
SMF_GOTOS(EStMoreCardsCheck)
}
m.SetTraps(KMMCErrResponseTimeOut);
SMF_INVOKES(InitialiseMemoryCardSMST, EStSendCIDIssued)
SMF_STATE(EStSendCIDIssued)
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM3, "EStSendCIDIssued" );
if( !err )
{
// The card responded with a CID. We need to initialise the
// appropriate entry in the card array with the CID.
if (iCxCardType==ESDCardTypeIsSD)
{
// Now prepare to recieve an RCA from to the card
CardArray().CardP(iCxCardCount)->iCID=s.ResponseP();
DSDSession::FillSdSpecificCommandDesc(Command(), ESDCmdSendRelativeAddress,0); // SEND_RCA with argument just stuff bits
m.ResetTraps();
iCxPollRetryCount=0; // Init count of send RCA attempts
SMF_GOTOS(EStIssueSendRCA)
}
else
{
// The card array allocates an RCA, either the old RCA
// if we have seen this card before, or a new one.
TRCA rca;
CardArray().AddCardSDMode(iCxCardCount,s.ResponseP(),&rca);
// Now assign the new RCA to the card
s.FillCommandDesc(ECmdSetRelativeAddr,TMMCArgument(rca));
m.ResetTraps();
SMF_INVOKES(ExecCommandSMST,EStRCADone)
}
}
else
{
m.ResetTraps();
SMF_GOTOS(EStMoreCardsCheck) // Timed out, try the next card slot
}
SMF_STATE(EStIssueSendRCA)
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM4, "EStIssueSendRCA" );
SMF_INVOKES(ExecCommandSMST,EStSendRCACheck)
SMF_STATE(EStSendRCACheck)
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM5, "EStSendRCACheck" );
// We need to check that the RCA recieved from the card doesn't clash
// with any others in this stack. RCA is first 2 bytes of response buffer (in big endian)
TRCA rca=(TUint16)((s.ResponseP()[0]<<8) | s.ResponseP()[1]);
if (CardArray().StoreRCAIfUnique(iCxCardCount,rca)!=KErrNone)
SMF_GOTOS( ((++iCxPollRetryCount<KMaxRCASendLoops)?EStIssueSendRCA:EStMoreCardsCheck) )
SMF_STATE(EStRCADone)
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM6, "EStRCADone" );
SMF_INVOKES(ConfigureMemoryCardSMST, EStMoreCardsCheck)
SMF_STATE(EStMoreCardsCheck)
OstTrace0( TRACE_INTERNALS, DSDSTACK_ATTACHCARDSM7, "EStMoreCardsCheck" );
if (++iCxCardCount < (TInt)iMaxCardsInStack)
{
__KTRACE_OPT(KPBUS1, Kern::Printf(">DSDStack::AcquireStackSM(): More Cards to check: %d",iCxCardCount));
OstTrace1( TRACE_INTERNALS, DSDSTACK_ACQUIRESTACKSM8, "More Cards to check: iCxCardCount=%d", iCxCardCount );
SMF_GOTOS(EStNextFullRange)
}
else
{
AddressCard(KBroadcastToAllCards); // Set back to broadcast mode
__KTRACE_OPT(KPBUS1, Kern::Printf("<DSDStack::AcquireStackSM()"));
}
SMF_END
}
TMMCErr DSDStack::InitialiseMemoryCardSMST(TAny* aStackP)
{ return static_cast<DSDStack*>(aStackP)->InitialiseMemoryCardSM(); }
TMMCErr DSDStack::InitialiseMemoryCardSM()
/**
*/
{
enum states
{
EStBegin=0,
EStSendInterfaceCondition,
EStSentInterfaceCondition,
EStSetFullRangeCmd,
EStCheckForFullRangeCmd41Timeout,
EStSentAppCommandBeforeCheckVoltage,
EStCheckVoltage,
EStFullRangeDone,
EStSetRangeCmd,
EStCheckForRangeCmd41Timeout,
EStSetRangeBusyCheck,
EStCIDCmd,
EStSendCIDIssued,
EStEnd
};
DMMCSession& s=Session();
DMMCPsu* psu=(DMMCPsu*)MMCSocket()->iVcc;
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM, "Current session = 0x%x", &s );
static const TUint32 KCmd8Param = 0x0100 | 0x00AA; // Voltage supplied : 2.7-3.6V, Check Pattern 10101010b
static const TUint32 KCmd8CheckMask = 0x00000FFF;
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM1, "EStBegin" );
iCxCardType = CardType(MMCSocket()->iSocketNumber, iCxCardCount);
if (iCxCardType==ESDCardTypeIsMMC)
{
// Skip the SD Protocol Seq.
SMF_INVOKES(GoIdleSMST, EStCheckVoltage);
}
s.iCardP = NULL; // This stops ExecCommandSM() from setting old RCA when sending CMD55
// Send CMD0 to initialise memory
SMF_INVOKES(GoIdleSMST, EStSendInterfaceCondition);
SMF_STATE(EStSendInterfaceCondition)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM2, "EStSendInterfaceCondition" );
iCxPollRetryCount=0; // Reset max number of poll attempts on card busy
iConfig.SetPollAttempts(KSDMaxPollAttempts); // Increase card busy timeout to 1 Sec for SD Cards
iConfig.RemoveMode( KMMCModeEnableTimeOutRetry ); // Temporarily disable timeout retries - since we use a timeout event to distinguish between MMC and SD
DSDSession::FillSdSpecificCommandDesc(Command(), ESDCmdSendIfCond, KCmd8Param);
// SD2.0 defines CMD8 as having a new response type - R7
// if the PSL doesn't indicate support for R7, use R1 instead
if (!(MMCSocket()->MachineInfo().iFlags & TMMCMachineInfo::ESupportsR7))
{
__KTRACE_OPT(KPBUS1, Kern::Printf("R7 not supported."));
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM3, "R7 not supported" );
Command().iSpec.iResponseType = ERespTypeR1;
}
m.SetTraps(KMMCErrAll);
SMF_INVOKES(ExecCommandSMST, EStSentInterfaceCondition)
SMF_STATE(EStSentInterfaceCondition)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM4, "EStSentInterfaceCondition" );
if (err == KMMCErrNone)
{
// Check the response for voltage and check pattern
const TUint32 status = TMMC::BigEndian32(s.ResponseP());
if((status & KCmd8CheckMask) == KCmd8Param)
{
__KTRACE_OPT(KPBUS1, Kern::Printf("Found v2 card."));
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM5, "Found v2 card" );
iCurrentOpRange |= KMMCOCRAccessModeHCS;
}
else
{
// Pattern Mis-match, card does not support the specified voltage range
OstTraceFunctionExitExt( DSDSTACK_INITIALISEMEMORYCARDSM_EXIT, this, (TInt) KMMCErrNotSupported );
return KMMCErrNotSupported;
}
SMF_GOTOS(EStCheckVoltage);
}
// Go idle again after CMD8 failure
SMF_INVOKES(GoIdleSMST, EStCheckVoltage);
SMF_STATE(EStCheckVoltage)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM6, "EStCheckVoltage" );
// If platform doesn't support an adjustable voltage PSU then there's no
// point in doing a full range for its supported range. To support range
// checking on a multi-card stack would require a complete scan of all
// cards before actually setting the range. This would over-complicate things
// and make the more normal single card/none adjustable cases less efficient.
if ( !(psu->VoltageSupported()&KMMCAdjustableOpVoltage) || iMaxCardsInStack>1)
{
// if the PSU isn't adjustable then it can't support low voltage mode
iCurrentOpRange&= ~KMMCOCRLowVoltage;
SMF_GOTOS(EStSetRangeCmd)
}
SMF_STATE(EStSetFullRangeCmd)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM7, "EStSetFullRangeCmd" );
// Issue ACMD41/CMD1 with omitted voltage range
if (iCxCardType==ESDCardTypeIsMMC)
{
s.FillCommandDesc(ECmdSendOpCond, KMMCOCRAccessModeHCS | KMMCOCRBusy); // Full range + Sector Access + Busy bit (iArgument==KBit31)
SMF_NEXTS(EStFullRangeDone)
}
else
{
DSDSession::FillAppCommandDesc(Command(), ESDACmdSDAppOpCond, TMMCArgument(0));
SMF_NEXTS(EStCheckForFullRangeCmd41Timeout)
}
m.SetTraps(KMMCErrResponseTimeOut);
SMF_CALL(ExecCommandSMST)
SMF_STATE(EStCheckForFullRangeCmd41Timeout)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM8, "EStCheckForFullRangeCmd41Timeout" );
if (err==KMMCErrResponseTimeOut)
{
__KTRACE_OPT(KPBUS1, Kern::Printf("ACMD 41 not supported - Assuming MMC"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM9, "ACMD 41 not supported - Assuming MMC" );
iCxCardType=ESDCardTypeIsMMC;
// Send CMD0 to re-initialise the card - otherwise we may get
// KMMCStatErrIllegalCommand returned for the next command
// expecting an R1 response. NB The SD spec recommends ignoring the error
// whereas the SDIO spec recommends this approach (ignoring the error
// would be difficult to code anyway, since by then we're no longer
// in this state machine).
SMF_INVOKES(GoIdleSMST, EStSetFullRangeCmd); // Repeat - but using CMD1
}
else
{
// No response timeout - so it must be an SD Card
(CardArray().CardP(iCxCardCount)->iFlags)|=KSDCardIsSDCard;
iCxCardType=ESDCardTypeIsSD;
}
SMF_STATE(EStFullRangeDone)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM10, "EStFullRangeDone" );
if (!err)
{
// Card responded with Op range - evaluate the common subset with the current setting.
// Dont worry about the busy bit for now, we'll check that when we repeat the command
const TUint32 range = (iCurrentOpRange & ~KMMCOCRAccessModeHCS) & (TMMC::BigEndian32(s.ResponseP()) & ~KMMCOCRBusy);
if(range == 0)
{
OstTraceFunctionExitExt( DSDSTACK_INITIALISEMEMORYCARDSM_EXIT1, this, (TInt) KMMCErrNotSupported );
return KMMCErrNotSupported; // Card is incompatible with our h/w
}
iCurrentOpRange = range | (iCurrentOpRange & KMMCOCRAccessModeHCS);
}
// Repeat SEND_OP_COND this time setting Current Op Range
if (iCxCardType==ESDCardTypeIsMMC)
{
// If platform and the card both support low voltage mode (1.65 - 1.95v), switch
// NB If this fails then there is no recovery.
if (iCurrentOpRange & KMMCOCRLowVoltage)
{
iCurrentOpRange = KMMCOCRLowVoltage;
SMF_INVOKES( SwitchToLowVoltageSMST, EStSetRangeCmd )
}
}
SMF_STATE(EStSetRangeCmd)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM11, "EStSetRangeCmd" );
// Issue ACMD41/CMD1 with voltage range
if (iCxCardType==ESDCardTypeIsMMC)
{
s.FillCommandDesc(ECmdSendOpCond,(iCurrentOpRange | KMMCOCRAccessModeHCS | KMMCOCRBusy)); // Range supported + Sector Access Busy bit (iArgument==KBit31)
SMF_NEXTS(EStSetRangeBusyCheck)
}
else
{
TUint arg = (iCurrentOpRange & ~KMMCOCRAccessModeHCS); // Range supported
if((iCurrentOpRange & KMMCOCRAccessModeHCS) != 0)
{
arg |= KMMCOCRAccessModeHCS;
}
DSDSession::FillAppCommandDesc(Command(), ESDACmdSDAppOpCond, arg);
SMF_NEXTS((iCxCardType == ESDCardTypeUnknown)? EStCheckForRangeCmd41Timeout : EStSetRangeBusyCheck)
}
m.SetTraps(KMMCErrResponseTimeOut);
SMF_CALL(ExecCommandSMST)
SMF_STATE(EStCheckForRangeCmd41Timeout)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM12, "EStCheckForRangeCmd41Timeout" );
__KTRACE_OPT(KPBUS1, Kern::Printf("-mst:ascs:crct:%d", err));
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM13, "err=%d", (TInt) err);
if (err==KMMCErrResponseTimeOut)
{
iCxCardType=ESDCardTypeIsMMC;
// Send CMD0 to re-initialise the card - otherwise we may get
// KMMCStatErrIllegalCommand returned for the next command
// expecting an R1 response. NB The SD spec recommends ignoring the error
// whereas the SDIO spec recommends this approach (ignoring the error
// would be difficult to code anyway, since by then we're no longer
// in this state machine).
SMF_INVOKES(GoIdleSMST, EStSetRangeCmd); // Repeat - but using CMD1
}
else
{
// No response timeout - so it must be an SD Card
__KTRACE_OPT(KPBUS1, Kern::Printf("-mst:ascs:crct2:%x", iCardArray));
__KTRACE_OPT(KPBUS1, Kern::Printf("-mst:ascs:crct3:%x", iCxCardCount));
__KTRACE_OPT(KPBUS1, Kern::Printf("-mst:ascs:crct4:%x", CardArray().CardP(iCxCardCount)));
OstTraceExt3(TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM14, "iCardArray=0x%x;iCxCardCount=%d;CardArray().CardP(iCxCardCount)=%d", (TUint) iCardArray, (TInt) iCxCardCount, (TInt) CardArray().CardP(iCxCardCount));
(CardArray().CardP(iCxCardCount)->iFlags)|=KSDCardIsSDCard;
iCxCardType=ESDCardTypeIsSD;
}
SMF_STATE(EStSetRangeBusyCheck)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM15, "EStSetRangeBusyCheck" );
__KTRACE_OPT(KPBUS1, Kern::Printf("-mst:ascs:src:%d",iCxCardType)); // 1:MMC, 2:SD
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM16, "iCxCardType=%d", iCxCardType);
if ( !err )
{
const TUint32 ocrResponse = TMMC::BigEndian32(s.ResponseP());
if ((ocrResponse & KMMCOCRBusy) == 0)
{
__KTRACE_OPT(KPBUS1,Kern::Printf("-sd:upd:bsy"));
// Card is still busy powering up. Check if we should timeout
if ( ++iCxPollRetryCount > iConfig.OpCondBusyTimeout() )
{
__KTRACE_OPT2(KPBUS1, KPANIC, Kern::Printf("-sd:ocr busy timed out"));
OstTraceFunctionExitExt( DSDSTACK_INITIALISEMEMORYCARDSM_EXIT2, this, (TInt) KMMCErrBusTimeOut );
(CardArray().CardP(iCxCardCount)->iFlags)|=KSDCardIsCorrupt;
return KMMCErrBusTimeOut;
}
#ifdef _DEBUG
if ( iCxPollRetryCount > KMMCSpecOpCondBusyTimeout )
{
__KTRACE_OPT2(KPBUS1, KPANIC, Kern::Printf("-sd:ocr exceeded spec timeout!! (%d ms)", (iCxPollRetryCount*KMMCRetryGapInMilliseconds)));
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM17, "Exceeded spec timeout (%d ms)", (iCxPollRetryCount*KMMCRetryGapInMilliseconds));
}
#endif
m.ResetTraps();
SMF_INVOKES(RetryGapTimerSMST,EStSetRangeCmd)
}
else
{
if(ocrResponse & KMMCOCRAccessModeHCS)
{
CardArray().CardP(iCxCardCount)->iFlags |= KMMCardIsHighCapacity;
#ifdef _DEBUG
if(iCxCardType == ESDCardTypeIsSD)
{
__KTRACE_OPT(KPBUS1, Kern::Printf("Found large SD card."));
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM18, "Found large SD card" );
}
else if(iCxCardType == ESDCardTypeIsMMC)
{
__KTRACE_OPT(KPBUS1, Kern::Printf("Found large MMC card."));
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM19, "Found large MMC card" );
}
#endif
}
}
}
// Restore original settings
iConfig.SetMode( EffectiveModes(s.iConfig) & KMMCModeEnableTimeOutRetry );
iConfig.SetPollAttempts(KMMCMaxPollAttempts);
// All cards are now ready and notified of the voltage range - ask ASSP to set it up
if (iCxCardType==ESDCardTypeIsMMC)
{
iCurrentOpRange &= ~KMMCOCRAccessModeMask;
}
else
{
iCurrentOpRange &= ~KMMCOCRAccessModeHCS;
}
psu->SetVoltage(iCurrentOpRange);
if (psu->SetState(EPsuOnFull) != KErrNone)
{
OstTraceFunctionExitExt( DSDSTACK_INITIALISEMEMORYCARDSM_EXIT3, this, (TInt) KMMCErrHardware );
return KMMCErrHardware;
}
SMF_STATE(EStCIDCmd)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM20, "EStCIDCmd" );
s.FillCommandDesc(ECmdAllSendCID,0);
m.ResetTraps();
SMF_INVOKES(ExecCommandSMST,EStSendCIDIssued)
SMF_STATE(EStSendCIDIssued)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITIALISEMEMORYCARDSM21, "EStSendCIDIssued" );
// All done - Higher level state machine expects CID in s.ResponseP()
SMF_END
}
TMMCErr DSDStack::ConfigureMemoryCardSMST(TAny* aStackP)
{ return static_cast<DSDStack*>(aStackP)->ConfigureMemoryCardSM(); }
TMMCErr DSDStack::ConfigureMemoryCardSM()
/**
*/
{
enum states
{
EStBegin=0,
EStSendCSDDone,
EStEnd
};
DMMCSession& s=Session();
OstTrace1( TRACE_INTERNALS, DSDSTACK_CONFIGUREMEMORYCARDSM, "Current session = 0x%x", &s );
//coverity[UNREACHABLE]
//Part of state machine design.
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_CONFIGUREMEMORYCARDSM1, "EStBegin" );
// Cards is initialised so get its CSD
s.FillCommandDesc(ECmdSendCSD, TUint32(CardArray().CardP(iCxCardCount)->iRCA) << 16);
SMF_INVOKES(ExecCommandSMST, EStSendCSDDone)
SMF_STATE(EStSendCSDDone)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CONFIGUREMEMORYCARDSM2, "EStSendCSDDone" );
// Store the CSD in the new card entry
TMMCard* cardP = CardArray().CardP(iCxCardCount);
cardP->iCSD = s.ResponseP();
if(CardArray().Card(iCxCardCount).IsSDCard())
{
// Perform SD Specific parsing of the CSD structure
if(cardP->CSD().CCC() & KMMCCmdClassLockCard)
{
cardP->iFlags |= KMMCardIsLockable;
}
}
else
{
// Perform MMC Specific parsing of the CSD structure
TUint specVers = cardP->CSD().SpecVers(); // 1 => 1.4, 2 => 2.0 - 2.2, 3 => 3.1
if ((specVers >= 2) && (cardP->CSD().CCC() & KMMCCmdClassLockCard))
{
cardP->iFlags |= KMMCardIsLockable;
}
}
// Check the state of the mechanical write protect switch
if (WriteProtected(iCxCardCount))
{
cardP->iFlags |= KMMCardIsWriteProtected;
}
SMF_END
}
EXPORT_C TMMCErr DSDStack::InitStackAfterUnlockSM()
//
// Performs initialisation of the SD card after the card has been unlocked
//
{
enum states
{
EStBegin=0,
EStNextCard,
EStSelectCard,
EStSetBusWidth,
EStSetBusWidth1,
EStGetSDStatus,
EStGetSDStatus1,
EStDecodeSDStatus,
EStDeselectCard,
EStCardDeselectedReadCSD,
EStCSDCmdSent,
EStMoreCardsCheck,
EStEnd
};
DMMCSession& s=Session();
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM, "Current session = 0x%x", &s );
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM1, "EStBegin" );
__KTRACE_OPT(KPBUS1, Kern::Printf(">DSDStack::InitStackAfterUnlockSM()"));
iRCAPool.ReleaseUnlocked();
iCxCardCount=0; // Reset current card number
SMF_STATE(EStNextCard)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM2, "EStNextCard" );
AddressCard(iCxCardCount); // Address the next card
if (!CardDetect(iCxCardCount))
SMF_GOTOS(EStMoreCardsCheck)
s.SetCard(CardArray().CardP(iCxCardCount));
if (!CardArray().Card(iCxCardCount).IsSDCard())
{
SMF_INVOKES( DMMCStack::InitCurrentCardAfterUnlockSMST, EStMoreCardsCheck )
}
SMF_STATE(EStSelectCard)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM3, "EStSelectCard" );
TRCA targetRCA = CardArray().Card(iCxCardCount).RCA();
if (targetRCA == SelectedCard())
{
SMF_GOTOS(EStSetBusWidth)
}
s.FillCommandDesc(ECmdSelectCard, targetRCA);
SMF_INVOKES(ExecCommandSMST,EStSetBusWidth)
SMF_STATE(EStSetBusWidth)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM4, "EStSetBusWidth" );
const TMMCStatus status = s.LastStatus();
if((status & KMMCStatCardIsLocked) != 0)
SMF_GOTOS(EStDeselectCard)
// set bus width with ACMD6
TUint32 arg = TUint32(CardArray().Card(iCxCardCount).RCA()) << 16;
s.FillCommandDesc(ECmdAppCmd, arg);
SMF_INVOKES(IssueCommandCheckResponseSMST,EStSetBusWidth1)
SMF_STATE(EStSetBusWidth1)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM5, "EStSetBusWidth1" );
CardArray().Card(iCxCardCount).SetBusWidth(4);
DSDSession::FillAppCommandDesc(Command(), ESDACmdSetBusWidth, KSDBusWidth4);
SMF_INVOKES(IssueCommandCheckResponseSMST,EStGetSDStatus)
SMF_STATE(EStGetSDStatus)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM6, "EStGetSDStatus" );
// Now we have sent ACMD6, ask the controller to set the bus width to 4
DoSetBusWidth(EBusWidth4);
// get protected area size with ACMD13
TUint32 arg = TUint32(CardArray().Card(iCxCardCount).RCA()) << 16;
s.FillCommandDesc(ECmdAppCmd,arg);
SMF_INVOKES(IssueCommandCheckResponseSMST,EStGetSDStatus1)
SMF_STATE(EStGetSDStatus1)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM7, "EStGetSDStatus1" );
DSDSession::FillAppCommandDesc(Command(), ESDACmdSDStatus);
s.FillCommandArgs(0, KSDStatusBlockLength, iPSLBuf, KSDStatusBlockLength);
SMF_INVOKES(IssueCommandCheckResponseSMST,EStDecodeSDStatus);
SMF_STATE(EStDecodeSDStatus)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM8, "EStDecodeSDStatus" );
#ifdef _DEBUG
for (TUint i = 0; i < KSDStatusBlockLength; ++i)
{
__KTRACE_OPT(KPBUS1, Kern::Printf("SD_STATUS[0x%x] = %x", i, iPSLBuf[i]));
OstTraceExt2( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM9, "SD_STATUS[0x%x]=0x%x", i, (TUint) iPSLBuf[i]);
}
#endif
// bits 495:480 are SD_CARD_TYPE. Check this is 00xxh (x = don't care).
if (iPSLBuf[2] != 0)
{
OstTraceFunctionExitExt( DSDSTACK_INITSTACKAFTERUNLOCKSM_EXIT, this, (TInt) KMMCErrNotSupported );
return KMMCErrNotSupported;
}
// bits 479:448 contain SIZE_OF_PROTECTED_AREA.
// (This is bytes 4 to 7 in big-endian format.)
TSDCard& sdc = CardArray().Card(iCxCardCount);
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack: Card %d", iCxCardCount));
TUint32 size_of_protected_area = TMMC::BigEndian32(&iPSLBuf[4]);
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack: SizeOfProtectedArea: %d", size_of_protected_area));
OstTraceExt2( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM10, "iCxCardCount=%d;SizeOfProtectedArea=%d", iCxCardCount, (TInt) size_of_protected_area);
const TCSD& csd = sdc.CSD();
TUint32 pas = 0;
if (sdc.IsHighCapacity())
{
// High Capacity Card
// Protected Area = SIZE_OF_PROTECTED_AREA
pas = size_of_protected_area;
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack(SDHC): SetProtectedAreaSize: %d", pas));
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM11, "SDHC: SetProtectedAreaSize=%d", pas);
}
else
{
// Standard Capacity Card
// Protected Area = SIZE_OF_PROTECTED_AREA * C_SIZE_MULT * BLOCK_LEN
pas = size_of_protected_area * (1 << (csd.CSizeMult() + 2 + csd.ReadBlLen()));
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack(SDSC): SetProtectedAreaSize: %d", pas));
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM12, "SDSC: SetProtectedAreaSize=%d", pas);
}
sdc.SetProtectedAreaSize(pas);
//bits 431:428 contain AU_SIZE
//(This is higher order 4 bits of 10th byte in big endian format)
TUint8 au = TUint8(iPSLBuf[10] >> 4);
if(au == 0) //AU_SIZE field in SD status register is undefined.
au = 6; //Defaulting to value corresponding to 512K
sdc.SetAUSize(au);
SMF_INVOKES(SwitchToHighSpeedModeSMST, EStDeselectCard)
SMF_STATE(EStDeselectCard)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM13, "EStDeselectCard" );
s.FillCommandDesc(ECmdSelectCard, 0);
SMF_INVOKES(ExecCommandSMST, EStCardDeselectedReadCSD)
SMF_STATE(EStCardDeselectedReadCSD)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM14, "EStCardDeselectedReadCSD" );
//
// Read the card's CSD register (again)
//
// - We re-read the CSD, as the TRAN_SPEED field may have changed due to a switch to HS Mode
//
TUint32 arg = TUint32(CardArray().Card(iCxCardCount).RCA()) << 16;
s.FillCommandDesc( ECmdSendCSD, arg );
SMF_INVOKES(ExecCommandSMST, EStCSDCmdSent)
SMF_STATE(EStCSDCmdSent)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM15, "EStCSDCmdSent" );
//
// Store the CSD in the card entry
//
TMMCard* cardP = iCardArray->CardP(iCxCardCount);
cardP->iCSD = s.ResponseP();
SMF_STATE(EStMoreCardsCheck)
OstTrace0( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM16, "EStMoreCardsCheck" );
if (++iCxCardCount < (TInt)iMaxCardsInStack)
{
__KTRACE_OPT(KPBUS1, Kern::Printf("\t >DSDStack: Address Next card: %d",iCxCardCount));
OstTrace1( TRACE_INTERNALS, DSDSTACK_INITSTACKAFTERUNLOCKSM17, "Address Next card=%d", iCxCardCount);
SMF_GOTOS(EStNextCard)
}
else
{
AddressCard(KBroadcastToAllCards);
__KTRACE_OPT(KPBUS1, Kern::Printf("<DSDStack::InitStackAfterUnlockSM()"));
}
SMF_END
}
TMMCErr DSDStack::CIMReadWriteMemoryBlocksSMST(TAny* aStackP)
{ return( static_cast<DSDStack *>(aStackP)->DMMCStack::CIMReadWriteBlocksSM() ); }
EXPORT_C TMMCErr DSDStack::CIMReadWriteBlocksSM()
//
// This macro performs single/multiple block reads and writes
// For normal read/write block operations, this function determines the appropriate
// MMC command to send and fills the command descriptor accordingly based on
// the value of the session ID set. However, it is necessary to have set the
// command arguments (with DMMCSession::FillCommandArgs()) before this function
// is called.
// For special block read/write operations, e.g. lock/unlock, it is required to
// have already filled the command descriptor (with DMMCSession::FillCommandDesc())
// for the special command required - in addition to have setup the command arguments.
//
{
enum states
{
EStBegin=0,
EStRestart,
EStAttached,
EStLength1,
EStLengthSet,
EStIssued,
EStWaitFinish,
EStWaitFinish1,
EStRWFinish,
EStDone,
EStEnd
};
DMMCSession& s = Session();
OstTrace1( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM, "Current session = 0x%x", &s );
__KTRACE_OPT(KPBUS1,Kern::Printf(">SD:RWBlocksSM %x",TUint(s.iLastStatus)));
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM1, "EStBegin" );
TSDCard& sdCard = *static_cast<TSDCard*>(s.iCardP);
AddressCard(sdCard.iIndex-1);
if(sdCard.IsSDCard() == EFalse)
{
//
// If this is not an SD card, then use the more appropriate
// MMC state machine as this is optimised for MMC performance
//
SMF_INVOKES(CIMReadWriteMemoryBlocksSMST, EStDone);
}
if(s.iSessionID == ECIMWriteBlock || s.iSessionID == ECIMWriteMBlock)
{
// Check that the card supports class 4 (Write) commands
const TUint ccc = s.iCardP->CSD().CCC();
if(!(ccc & KMMCCmdClassBlockWrite))
{
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT, this, (TInt) KMMCErrNotSupported );
return KMMCErrNotSupported;
}
}
Command().iCustomRetries = 0; // MBW retries
s.iState |= KMMCSessStateInProgress;
m.SetTraps(KMMCErrInitContext);
SMF_STATE(EStRestart) // NB: ErrBypass is not processed here
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM2, "EStRestart" );
SMF_CALLMEWR(EStRestart) // Create a recursive call entry to recover from the errors trapped
m.SetTraps(KMMCErrStatus);
if (s.Command().iSpec.iCommandClass!=KMMCCmdClassApplication || s.Command().iCommand==ECmdAppCmd )
{
s.ResetCommandStack();
SMF_INVOKES( AttachCardSMST, EStAttached ) // attachment is mandatory here
}
SMF_BPOINT(EStAttached)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM3, "EStAttached" );
TMMCCommandDesc& cmd = s.Command();
const TUint32 blockLength = cmd.BlockLength();
if((blockLength == 0) || (blockLength > (TUint)KDefaultBlockLenInBytes))
{
__KTRACE_OPT(KPBUS1,Kern::Printf(">SD:RWBlocksSM err BlockLen:%d",blockLength));
OstTrace1( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM4, "blockLength=%d", blockLength );
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT1, this, (TInt) KMMCErrArgument );
return KMMCErrArgument;
}
if(s.iSessionID == ECIMReadBlock ||
s.iSessionID == ECIMWriteBlock ||
s.iSessionID == ECIMReadMBlock ||
s.iSessionID == ECIMWriteMBlock)
{
// read/write operation
if(!cmd.AdjustForBlockOrByteAccess(s))
{
// unable to convert command arguments to suit the underlying block/byte access mode
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT2, this, (TInt) KMMCErrArgument );
return KMMCErrArgument;
}
}
// Set the block length if it has changed. Always set for ECIMLockUnlock.
if ((blockLength == s.iCardP->iSetBlockLen) && (s.iSessionID != ECIMLockUnlock))
{
SMF_GOTOS( EStLengthSet )
}
s.iCardP->iSetBlockLen = 0;
s.PushCommandStack();
s.FillCommandDesc( ECmdSetBlockLen, blockLength );
SMF_INVOKES( ExecCommandSMST, EStLength1 )
SMF_STATE(EStLength1)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM5, "EStLength1" );
const TMMCStatus status(s.ResponseP());
s.PopCommandStack();
if (status.Error())
{
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT3, this, (TInt) KMMCErrStatus );
SMF_RETURN(KMMCErrStatus)
}
s.iCardP->iSetBlockLen = s.Command().BlockLength();
SMF_STATE(EStLengthSet)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM6, "EStLengthSet" );
TMMCCommandDesc& cmd = s.Command();
TUint opType = 0;
const TUint kTypeWrite = KBit0;
const TUint kTypeMultiple = KBit1;
const TUint kTypeSpecial = KBit2;
static const TMMCCommandEnum cmdCodes[4] =
{ECmdReadSingleBlock, ECmdWriteBlock, ECmdReadMultipleBlock, ECmdWriteMultipleBlock};
switch( s.iSessionID )
{
case ECIMReadBlock:
break;
case ECIMWriteBlock:
opType=kTypeWrite;
break;
case ECIMReadMBlock:
opType=kTypeMultiple;
break;
case ECIMWriteMBlock:
opType=kTypeWrite|kTypeMultiple;
break;
case ECIMLockUnlock:
default:
opType=kTypeSpecial;
break;
}
const TUint blocks = cmd.iTotalLength / cmd.BlockLength();
if ( blocks * cmd.BlockLength() != cmd.iTotalLength )
{
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT4, this, (TInt) KMMCErrArgument );
return KMMCErrArgument;
}
if ( !(opType & kTypeSpecial) ) // A special session has already set its command descriptor
{
if (blocks==1)
opType &= ~kTypeMultiple;
TUint32 oldFlags = cmd.iFlags; // Store the existing command flags, as they will be reset by FillCommandDesc()
cmd.iCommand = cmdCodes[opType];
s.FillCommandDesc();
cmd.iFlags = oldFlags; // ...and restore the old command flags
}
// NB We need to trap KMMCErrStatus errors, because if one occurs,
// we still need to wait to exit PRG/RCV/DATA state
if (Command().iCommand == ECmdWriteMultipleBlock)
{
Command().iExecNotHandle = KMMCErrDataCRC | KMMCErrDataTimeOut;
m.SetTraps(KMMCErrStatus | KMMCErrDataCRC | KMMCErrDataTimeOut);
}
else
{
m.SetTraps(KMMCErrStatus);
}
SMF_INVOKES( ExecCommandSMST, EStIssued )
SMF_STATE(EStIssued)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM7, "EStIssued" );
// check state of card after data transfer with CMD13.
if (s.Command().Direction() != 0)
{
SMF_GOTOS(EStWaitFinish)
}
SMF_GOTOS(EStRWFinish);
SMF_STATE(EStWaitFinish)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM8, "EStWaitFinish" );
// if MBW fail, then recover by rewriting ALL blocks...
// (used to recover using ACMD22, but this has been changed
// as is difficult to test for little gain in efficiency)
if (Command().iCommand == ECmdWriteMultipleBlock && err != 0)
{
if (Command().iCustomRetries++ >= (TInt) KSDMaxMBWRetries)
{
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT5, this, (TInt) err );
SMF_RETURN(err)
}
m.Pop(); // remove recursive call to EStRestart
SMF_GOTOS(EStRestart)
}
// Save the status and examine it after issuing CMD13...
// NB We don't know where in the command stack the last response is stored (e.g. there may
// have bee a Deselect/Select issued), but we do know last response is stored in iLastStatus
TMMC::BigEndian4Bytes(s.ResponseP(), s.iLastStatus);
// ...else issue CMD13 to poll for the card finishing and check for errors
s.PushCommandStack();
s.FillCommandDesc(ECmdSendStatus, 0);
SMF_INVOKES(ExecCommandSMST, EStWaitFinish1)
SMF_STATE(EStWaitFinish1)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM9, "EStWaitFinish1" );
const TMMCStatus status(s.ResponseP());
s.PopCommandStack();
#ifdef __WINS__
SMF_GOTOS(EStRWFinish);
#else
const TMMCardStateEnum st1 = status.State();
if (st1 == ECardStatePrg || st1 == ECardStateRcv || st1 == ECardStateData)
{
SMF_INVOKES(ProgramTimerSMST, EStWaitFinish);
}
if (status.Error())
{
OstTraceFunctionExitExt( DUP7_DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT, this, (TInt) KMMCErrStatus );
SMF_RETURN(KMMCErrStatus)
}
#endif
// Fall through if CURRENT_STATE is not PGM or DATA
SMF_STATE(EStRWFinish)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM10, "EStRWFinish" );
if (TMMCStatus(s.ResponseP()).Error() != 0)
{
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT6, this, (TInt) KMMCErrStatus );
SMF_RETURN(KMMCErrStatus);
}
s.iState &= ~KMMCSessStateInProgress;
// skip over recursive entry or throw error and catch in CIMLockUnlockSM()
TMMCErr ret = (s.Command().iCommand == ECmdLockUnlock) ? KMMCErrUpdPswd : KMMCErrBypass;
OstTraceFunctionExitExt( DSDSTACK_CIMREADWRITEBLOCKSSM_EXIT7, this, (TInt) ret );
return ret;
SMF_STATE(EStDone)
OstTrace0( TRACE_INTERNALS, DSDSTACK_CIMREADWRITEBLOCKSSM11, "EStDone" );
__KTRACE_OPT(KPBUS1,Kern::Printf("<SD:RWBlocksSM()"));
SMF_END
}
EXPORT_C TMMCErr DSDStack::ModifyCardCapabilitySM()
//
// This function provides a chance to modify the capability of paticular cards.
// Licensee may overide this function to modify certain card's capability as needed.
// A state machine is needed in derived function and function of base class should be
// called in order to act more generic behaviour.
//
{
enum states
{
EStBegin=0,
EStDone,
EStEnd
};
//coverity[unreachable]
//Part of state machine design.
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_MODIFYCARDCAPABILITYSM, "EStBegin" );
SMF_INVOKES( DMMCStack::BaseModifyCardCapabilitySMST, EStDone )
SMF_STATE(EStDone)
OstTrace0( TRACE_INTERNALS, DSDSTACK_MODIFYCARDCAPABILITYSM1, "EStDone" );
SMF_END
}
inline TMMCErr DSDStack::SwitchToHighSpeedModeSMST( TAny* aStackP )
{ return( static_cast<DSDStack *>(aStackP)->DSDStack::SwitchToHighSpeedModeSM() ); }
TMMCErr DSDStack::SwitchToHighSpeedModeSM()
{
enum states
{
EStBegin=0,
EstCheckController,
EStSendSCRCmd,
EStCheckSpecVer,
EStCheckFunction,
EStCheckFunctionSent,
EStSwitchFunctionSent,
EStDone,
EStEnd
};
__KTRACE_OPT(KPBUS1,Kern::Printf(">SD:SwitchToHighSpeedModeSM "));
DMMCSession& s = Session();
OstTrace1( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM, "Current session = 0x%x", &s );
SMF_BEGIN
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM1, "EStBegin");
SMF_STATE(EstCheckController)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM2, "EstCheckController");
// Get the clock speed supported by the controller
TMMCMachineInfoV4 machineInfo;
TMMCMachineInfoV4Pckg machineInfoPckg(machineInfo);
MachineInfo(machineInfoPckg);
if (machineInfo.iVersion >= TMMCMachineInfoV4::EVersion4)
{
if (machineInfo.iMaxClockSpeedInMhz < (KSDDTClk50MHz/1000) )
{
__KTRACE_OPT(KPBUS1, Kern::Printf("High speed mode not supported by controller"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM3, "High speed mode not supported by controller");
SMF_GOTOS(EStDone);
}
}
SMF_STATE(EStSendSCRCmd)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM4, "EStSendSCRCmd");
//
// ACMD51 Read the SD Configuration Register
//
DSDSession::FillAppCommandDesc(Command(), ESDACmdSendSCR);
s.FillCommandArgs(0, KSDSCRLength, iPSLBuf, KSDSCRLength);
SMF_INVOKES(ExecCommandSMST, EStCheckSpecVer);
SMF_STATE(EStCheckSpecVer)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM5, "EStCheckSpecVer");
//
// Check the SD version
//
// 0 : version 1.0-1.01 : SDHS Is NOT Supported
// 1 : version 1.10+ : SDHS Is Supported
//
__KTRACE_OPT(KPBUS1,Kern::Printf(" SD Configuration Register received"));
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...card_status=%x", TUint(s.iLastStatus)));
OstTrace1( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM6, "SD Configuration Register received: card_status=0x%x", (TUint) s.iLastStatus);
#ifdef _DEBUG
for (TUint32 i = 0; i < KSDSCRLength; ++i)
{
__KTRACE_OPT(KPBUS1, Kern::Printf(" ...SCR_STATUS[0x%x] = %x", i, iPSLBuf[i]));
}
#endif
if(iPSLBuf[0]==2)
{
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...SD Spec Version 2"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM7, "SD Spec Version 2");
SMF_GOTOS(EStCheckFunction);
}
if(iPSLBuf[0]==1)
{
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...SD Spec Version 1.10"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM8, "SD Spec Version 1.10");
SMF_GOTOS(EStCheckFunction);
}
if(iPSLBuf[0]==0)
{
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...SD Spec Version 1.01"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM9, "SD Spec Version 1.01");
SMF_GOTOS(EStDone);
}
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...SD Spec Version > 2 !"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM10, "SD Spec Version > 2");
SMF_STATE(EStCheckFunction)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM11, "EStCheckFunction");
m.SetTraps(KMMCErrResponseTimeOut | KMMCErrNotSupported);
//
// SD1.1 uses CMD6 which is not defined by the MMCA
// - fill in command details using the SD Specific command description table
//
DSDSession::FillSdSpecificCommandDesc(Command(), ESDCmdSwitchFunction);
s.FillCommandArgs(KSDCheckFunctionHighSpeed, KSDSwitchFuncLength, iPSLBuf, KSDSwitchFuncLength);
SMF_INVOKES(IssueCommandCheckResponseSMST,EStCheckFunctionSent)
SMF_STATE(EStCheckFunctionSent)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM12, "EStCheckFunctionSent");
__KTRACE_OPT(KPBUS1,Kern::Printf(" CheckFunctionSent %x",TUint(s.iLastStatus)));
OstTrace1( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM13, "CheckFunctionSent=0x%x", (TUint) s.iLastStatus);
m.ResetTraps();
if(err == KMMCErrResponseTimeOut)
{
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...CMD6 [Read] Response Timeout"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM14, "CMD6 [Read] Response Timeout");
SMF_GOTOS(EStDone);
}
else if(err == KMMCErrNotSupported)
{
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...CMD6 [Read] Not Supported"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM15, "CMD6 [Read] Not Supported");
SMF_GOTOS(EStDone);
}
#ifdef _DEBUG
for (TUint32 i = 0; i < KSDSwitchFuncLength; ++i)
{
__KTRACE_OPT(KPBUS1, Kern::Printf(" ...SD Switch Func Status[0x%x] = %x", i, iPSLBuf[i]));
}
m.SetTraps(KMMCErrResponseTimeOut);
#endif
//
// SD1.1 uses CMD6 which is not defined by the MMCA
// - fill in command details using the SD Specific command description table
//
DSDSession::FillSdSpecificCommandDesc(Command(), ESDCmdSwitchFunction);
s.FillCommandArgs(KSDSwitchFunctionHighSpeed, KSDSwitchFuncLength, iPSLBuf, KSDSwitchFuncLength);
SMF_INVOKES(IssueCommandCheckResponseSMST,EStSwitchFunctionSent)
SMF_STATE(EStSwitchFunctionSent)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM16, "EStSwitchFunctionSent");
#ifdef _DEBUG
m.ResetTraps();
if(err == KMMCErrResponseTimeOut)
{
__KTRACE_OPT(KPBUS1,Kern::Printf(" ...CMD6 [Write] Response Timeout"));
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM17, "CMD6 [Write] Response Timeout");
}
for (TUint32 i = 0; i < KSDSwitchFuncLength; ++i)
{
__KTRACE_OPT(KPBUS1, Kern::Printf(" ...SD Switch[0x%x] = %x", i, iPSLBuf[i]));
OstTraceExt2( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM18, "SD Switch[0x%x]=0x%x", (TUint) i, (TUint) iPSLBuf[i]);
}
#endif
SMF_STATE(EStDone)
OstTrace0( TRACE_INTERNALS, DSDSTACK_SWITCHTOHIGHSPEEDMODESM19, "EStSwitchFunctionSent");
SMF_END
}
EXPORT_C DMMCSession* DSDStack::AllocSession(const TMMCCallBack& aCallBack) const
/**
* Factory function to create DMMCSession derived object. Non-generic MMC
* controllers can override this to generate more specific objects.
* @param aCallBack Callback function to notify the client that a session has completed
* @return A pointer to the new session
*/
{
OstTraceFunctionEntry1( DSDSTACK_ALLOCSESSION_ENTRY, this );
return new DSDSession(aCallBack);
}
EXPORT_C DSDStack::TSDCardType DSDStack::CardType(TInt /*aSocket*/, TInt /*aCardNumber*/)
/**
* This method allows a preset card type to be specified for a given slot/socket.
* The SD protocol stack attempts to identify card types (SD or MMC) through protocol responses;
* For embedded media (eMMC or eSD) this is unnecessary as the media type is already known and cannot change.
* Licensee may override this function to specify the preset card type.
* @param aSocket Socket to be queried for card type.
* @param aCardNumber Card number attached to Socket to be queried for card type.
* @return Preset card type
*/
{
// Default implmentation.
return DSDStack::ESDCardTypeUnknown;
}
EXPORT_C void DSDStack::Dummy1() {}
EXPORT_C void DSDStack::Dummy2() {}
EXPORT_C void DSDStack::Dummy3() {}