sdhcslot.h

SMDK2416_BSP

    virtual DWORD GetPowerSupplyRampUpMs() {
      return m_pregDevice->ValueDW(SDHC_POWER_UP_DELAY_KEY,
          SDHC_MAX_POWER_SUPPLY_RAMP_UP);
    }

    // Register access routines. These are not virtual so that we get
    // good inline read/write perf.
    template <class T>
      inline VOID WriteReg   (DWORD dwOffset, T tValue) {
        CheckRegOffset(dwOffset, sizeof(T));
        volatile T *ptRegister = (volatile T *) (m_pbRegisters + dwOffset);
        *ptRegister = tValue;
      }
    template <class T>
      inline T ReadReg       (DWORD dwOffset) {
        CheckRegOffset(dwOffset, sizeof(T));
        volatile T *ptRegister = (volatile T *) (m_pbRegisters + dwOffset);
        return *ptRegister;
      }

    inline BYTE  ReadByte  (DWORD dwOffset) {
      return ReadReg<BYTE>(dwOffset);
    }
    inline VOID  WriteByte (DWORD dwOffset, BYTE bValue) {
      WriteReg(dwOffset, bValue);
    }

    inline WORD  ReadWord  (DWORD dwOffset) {
      return ReadReg<WORD>(dwOffset);
    }
    inline VOID  WriteWord (DWORD dwOffset, WORD wValue) {
      WriteReg(dwOffset, wValue);
    }

    inline DWORD ReadDword (DWORD dwOffset) {
      return ReadReg<DWORD>(dwOffset);
    }
    inline VOID  WriteDword(DWORD dwOffset, DWORD dwValue) {
      WriteReg(dwOffset, dwValue);
    }


    // Interrupt handling methods
	virtual VOID HandleRemoval(BOOL fCancelRequest);
    virtual VOID HandleInsertion();
    virtual BOOL HandleCommandComplete();
    virtual VOID HandleErrors();
    virtual VOID HandleTransferDone();
    virtual VOID HandleReadReady();
    virtual VOID HandleWriteReady();
    virtual VOID HandleDma();    

    // Determines if DMA can be used for this request taking alignment
    // requirements and capabilities into account.
    virtual BOOL UseDmaForRequest(PSD_BUS_REQUEST pRequest);

    // Allocates a physical buffer for DMA.
    virtual PVOID AllocPhysBuffer(size_t cb, PDWORD pdwPhysAddr);

    // Frees the physical buffer.
    virtual VOID FreePhysBuffer(PVOID pv);

    // Place the slot into the desired power state.
    virtual VOID SetHardwarePowerState(CEDEVICE_POWER_STATE cpsNew);

    // Performs the actual enabling/disabling of SDIO card interrupts.
    virtual VOID DoEnableSDIOInterrupts(BOOL fEnable);

    // Perform the desired reset and wait for completion. Returns FALSE
    // if there is a timeout.
    virtual BOOL SoftwareReset(BYTE bResetBits);

    // Keep reading the register using (*pfnReadReg)(dwRegOffset) until
    // value & tMask == tWaitForEqual.
    template<class T>
      BOOL WaitForReg(
          T (CSDHCSlotBase::*pfnReadReg)(DWORD),
          DWORD dwRegOffset,
          T tMask,
          T tWaitForEqual,
          DWORD dwTimeout = 1000        
          );

    // Turn the LED on or off.
    virtual VOID EnableLED(BOOL fEnable);

    // Calls SDHCDIndicateSlotStateChange.
    virtual VOID IndicateSlotStateChange(SD_SLOT_EVENT sdEvent);

    // Calls SDHCDGetAndLockCurrentRequest.
    virtual PSD_BUS_REQUEST GetAndLockCurrentRequest();

    // Calls SDHCDPowerUpDown.
    virtual VOID PowerUpDown(BOOL fPowerUp, BOOL fKeepPower);

    // Calls SDHCDIndicateBusRequestComplete.
    virtual VOID IndicateBusRequestComplete(PSD_BUS_REQUEST pRequest, SD_API_STATUS status);

    // Finds the closest rate that is *pdwRate or lower. Stores the
    // actual rate in *pdwRate.
    virtual VOID SetClockRate(PDWORD pdwRate);

    // Turn on the SD clock according to the clock divisor found 
    // in SetClockRate().
    virtual VOID SDClockOn();

    // Turn off the SD clock.
    virtual VOID SDClockOff();

    // Determine the Vdd windows from the capabilities register.
    virtual DWORD DetermineVddWindows();

    // Set an interrupt event.
    virtual VOID SetInterruptEvent() { ::SetInterruptEvent(m_dwSysIntr); }


#ifdef DEBUG
    // Print out the standard host register set.
    virtual VOID DumpRegisters();

    // Validate the member data.
    virtual VOID Validate();

    // Verify that the desired register accesses are properly aligned.
    VOID CheckRegOffset(DWORD dwOffset, DWORD dwRegSize) {
      DEBUGCHK( (dwOffset % dwRegSize) == 0);
      DEBUGCHK(dwOffset < sizeof(SSDHC_REGISTERS));
      DEBUGCHK( (dwOffset + dwRegSize) <= sizeof(SSDHC_REGISTERS));
    }
#else
    // These routines do nothing in non-debug builds.
    inline VOID DumpRegisters() {}
    inline VOID Validate() {}
    inline VOID CheckRegOffset(DWORD dwOffset, DWORD dwRegSize) {}
#endif

#ifdef _SMDK2450_CH1_EXTCD_
		// Prototype for a new function can detect whether card is presented of HSMMC ch0 on SMDK2450.
		virtual BOOL IsCardPresent();
#endif

    CReg                   *m_pregDevice;           // pointer to device registry key
    DWORD                   m_dwSlot;               // physical slot number
    volatile BYTE          *m_pbRegisters;          // memory-mapped registers

    PSDCARD_HC_CONTEXT      m_pHCDContext;          // host context
    DWORD                   m_dwSysIntr;            // system interrupt
    HANDLE                  m_hBusAccess;           // bus parent
    INTERFACE_TYPE          m_interfaceType;        // interface of the controller
    DWORD                   m_dwBusNumber;          // bus number of the controller

    DWORD                   m_dwVddWindows;         // supported VDD windows
    DWORD                   m_dwMaxClockRate;       // maximum clock rate
    DWORD                   m_dwTimeoutControl;     // timeout control value
    DWORD                   m_dwMaxBlockLen;        // maximum block length

    PBYTE                   m_pbDmaBuffer;          // virtual address of DMA buffer
    DWORD                   m_paDmaBuffer;          // physical address of DMA buffer

    WORD                    m_wRegClockControl;     // register value of Clock Control
    WORD                    m_wIntSignals;          // saved int signals for powerup
    CEDEVICE_POWER_STATE    m_cpsCurrent;           // current power state
    CEDEVICE_POWER_STATE    m_cpsAtPowerDown;       // power state at PowerDown()

    DWORD                   m_dwDefaultWakeupControl;   // wakeup source list 
    BYTE                    m_bWakeupControl;           // current wakeup interrupts

    BOOL		isSDIOInterrupt;

#ifdef DEBUG
    DWORD                   m_dwReadyInts;          // number of Read/WriteReady interrupts that have occurred
#endif DEBUG

    BOOL                    m_fCommandCompleteOccurred;     // has the Command Complete occurred for the current transfer?

#if (BSP_TYPE == BSP_SMDK2443)

#elif (BSP_TYPE == BSP_SMDK2450)
    PSD_BUS_REQUEST         m_pCurrentRequest; // Current Processing Request.
    BOOL                    m_fCurrentRequestFastPath;
    SD_API_STATUS           m_FastPathStatus;
    DWORD                   m_dwPollingModeSize;
#endif

    BOOL                    m_fSleepsWithPower : 1;         // keep power in PowerDown()?
    BOOL                    m_fPowerUpDisabledInts : 1;     // did PowerUp disable SDIO card interrupts?
    BOOL                    m_fIsPowerManaged : 1;          // is the power manager handling us?
    BOOL                    m_fSDIOInterruptsEnabled : 1;   // are SDIO card interrupts enabled?
    BOOL                    m_fCardPresent : 1;             // is a card present
    BOOL                    m_fAutoCMD12Success : 1;        // AutoCMD12 success
    BOOL                    m_fCheckSlot : 1;               // does HandleInterrupt() need to be run?
    BOOL                    m_fCanWakeOnSDIOInterrupts : 1; // can wake on SDIO interrupts
    BOOL                    m_f4BitMode : 1;                // 4 bit bus mode?
    BOOL                    m_fFakeCardRemoval : 1;         // should we simulate card removal?    

} *PCSDHCSlotBase;


#define CB_DMA_BUFFER	0x20000//128KB buffer
//#define CB_DMA_PAGE	0x1000  // we program DMA for 4KB pages
#define CB_DMA_PAGE		0x20000  // we program DMA for 128KB pages


#define TRANSFER_IS_WRITE(pRequest)        (SD_WRITE == (pRequest)->TransferClass)
#define TRANSFER_IS_READ(pRequest)         (SD_READ == (pRequest)->TransferClass)
#define TRANSFER_IS_COMMAND_ONLY(pRequest) (SD_COMMAND == (pRequest)->TransferClass)      

#define TRANSFER_SIZE(pRequest)            ((pRequest)->BlockSize * (pRequest)->NumBlocks)


#define SDHC_DEFAULT_TIMEOUT                2000 // 2 seconds


// Is this request an SDIO abort (CMD52, Function 0, I/O Abort Reg)?
inline
BOOL
TransferIsSDIOAbort(
    PSD_BUS_REQUEST pRequest
    )
{
  PREFAST_DEBUGCHK(pRequest);

  BOOL fRet = FALSE;

  if (pRequest->CommandCode == SD_CMD_IO_RW_DIRECT) {
    if (IO_RW_DIRECT_ARG_FUNC(pRequest->CommandArgument) == 0) {
      if (IO_RW_DIRECT_ARG_ADDR(pRequest->CommandArgument) == SD_IO_REG_IO_ABORT) {
        fRet = TRUE;
      }
    }
  }

  return fRet;
}

#endif // _SDHCSLOT_DEFINED

// DO NOT REMOVE --- END EXTERNALLY DEVELOPED SOURCE CODE ID --- DO NOT REMOVE