sdhc.cpp

Samsung公司S3C6400芯片的BSP源码包

            status = SD_API_STATUS_INVALID_PARAMETER;
        }
        break;
    }

    case SDHCDGetSlotInfo: {
        if (cbData != sizeof(SDCARD_HC_SLOT_INFO)) {
            status = SD_API_STATUS_INVALID_PARAMETER;
        }
        break;
    }

    default:
        break;
    }

    if (SD_API_SUCCESS(status) && fCallSlotsHandler) {
        // Call the slots handler to do the real work.
        status = pSlot->SlotOptionHandler(sdOption, pData, cbData);
    }

    Unlock();

    return status;
}

#ifdef NEW_POWER_MANAGEMENT
// for wakeup problem. hsjang 070823
DWORD CSDHCBase::IOControl(DWORD dwCode, PBYTE pBufIn, DWORD dwLenIn, 
        PBYTE pBufOut, DWORD dwLenOut, PDWORD pdwActualOut) 
{ 

    BOOL RetVal = TRUE;
    DWORD dwErr = ERROR_SUCCESS;    

	switch (dwCode)
	{

//-----------------------------------------------------------------------------------------
		case IOCTL_POWER_CAPABILITIES: 
        {
            PPOWER_CAPABILITIES ppc;
			RETAILMSG(1, (TEXT("[HSMMC] IOCTL_POWER_CAPABILITIES\r\n")));   
            
			if ( !pdwActualOut || !pBufOut || (dwLenOut < sizeof(POWER_CAPABILITIES)) ) {
                RetVal = FALSE;
                dwErr = ERROR_INVALID_PARAMETER;
                break;
            }
			
            ppc = (PPOWER_CAPABILITIES)pBufOut;
            
            memset(ppc, 0, sizeof(POWER_CAPABILITIES));

            // support D0, D4 
            ppc->DeviceDx = 0x11;

            // Report our power consumption in uAmps rather than mWatts. 
            ppc->Flags = POWER_CAP_PREFIX_MICRO | POWER_CAP_UNIT_AMPS;
            
			// 25 m = 25000 uA
            // TODO: find out a more accurate value
			ppc->Power[D0] = 25000;
            
            *pdwActualOut = sizeof(POWER_CAPABILITIES);
        } break;

		case IOCTL_POWER_SET: 
        {
            CEDEVICE_POWER_STATE NewDx;
  
            if ( !pdwActualOut || !pBufOut || (dwLenOut < sizeof(CEDEVICE_POWER_STATE)) ) {
                RetVal = FALSE;
                dwErr = ERROR_INVALID_PARAMETER;
                break;
            }
            
            NewDx = *(PCEDEVICE_POWER_STATE)pBufOut;

            if ( VALID_DX(NewDx) ) {
                switch ( NewDx ) {
                case D0:
                    if (m_Dx != D0) {
                        PowerUp();
                        m_Dx = D0;
                    }
                    break;

                default:
                    if (m_Dx != (_CEDEVICE_POWER_STATE)D4) {
                        PowerDown();
                        m_Dx = (_CEDEVICE_POWER_STATE)D4;
                    }
                    break;
                }

                // return our state
                *(PCEDEVICE_POWER_STATE)pBufOut = m_Dx;

                RETAILMSG(1, (TEXT("[HSMMC] IOCTL_POWER_SET : D%u \r\n"), NewDx));

                *pdwActualOut = sizeof(CEDEVICE_POWER_STATE);
            } else {
                RetVal = FALSE;
                dwErr = ERROR_INVALID_PARAMETER;
            }
            
        } break;

        case IOCTL_POWER_GET: 

            if ( !pdwActualOut || !pBufOut || (dwLenOut < sizeof(CEDEVICE_POWER_STATE)) ) {
                RetVal = FALSE;
                dwErr = ERROR_INVALID_PARAMETER;
                break;
            }

			*(PCEDEVICE_POWER_STATE)pBufOut = m_Dx;

            RETAILMSG(1, (TEXT("[HSMMC] IOCTL_POWER_GET : D%u \r\n"), m_Dx));

            *pdwActualOut = sizeof(CEDEVICE_POWER_STATE);
	        break;

		default:
			RETAILMSG(1, (TEXT("[HSMMC] This IOControl is not supported\r\n")));
			dwErr = ERROR_INVALID_PARAMETER;	
			
	}
	       
	
    return dwErr;
}
#endif

VOID
CSDHCBase::PowerDown(
                     )
{
    Validate();

    for (DWORD dwSlot = 0; dwSlot < m_cSlots; ++dwSlot) {
        PCSDHCSlotBase pSlot = GetSlot(dwSlot);
        pSlot->PowerDown();
    }

    CEDEVICE_POWER_STATE cps = DetermineRequiredControllerPowerState();
    SetControllerPowerState(cps);
}


VOID
CSDHCBase::PowerUp(
                   )
{
    Validate();

    for (DWORD dwSlot = 0; dwSlot < m_cSlots; ++dwSlot) {
        PCSDHCSlotBase pSlot = GetSlot(dwSlot);

        CEDEVICE_POWER_STATE cpsRequired = pSlot->GetPowerUpRequirement();
        if (cpsRequired < m_cpsCurrent) {
            // Move controller to higher power state initially since
            // it will need to be powered for the slot to access
            // registers.
            SetControllerPowerState(cpsRequired);
        }

        pSlot->PowerUp();
    }
}


VOID
CSDHCBase::PreDeinit(
                     )
{
    if (m_fRegisteredWithBusDriver) {
        if (m_fDriverShutdown == FALSE) {
            // Deregister the host controller
            SDHCDDeregisterHostController(m_pHCDContext);
        }
        // else the bus driver itself already deregistered us.

        m_fRegisteredWithBusDriver = FALSE;
    }
}


BOOL 
CSDHCBase::InitializeHardware(
                              )
{
    SETFNAME(_T("InitializeHardware"));

    DEBUGCHK(m_hBusAccess);
    DEBUGCHK(m_regDevice.IsOK());
    PREFAST_DEBUGCHK(m_pSlotInfos);
	RETAILMSG(0,(TEXT("CSDHCBase::InitializeHardware\n")));
	ValidateSlotCount();

    BOOL fRet = FALSE;
    PHYSICAL_ADDRESS PortAddress;
    DWORD inIoSpace = 0;

    // Read window information
    DDKWINDOWINFO wini;
    wini.cbSize = sizeof(wini);
    DWORD dwStatus = DDKReg_GetWindowInfo(m_regDevice, &wini);
    if (dwStatus != ERROR_SUCCESS) {
        DEBUGMSG(SDCARD_ZONE_ERROR, (_T("%s Error getting window information\r\n"),
            pszFname));
        goto EXIT;
    }

    // Read ISR information
    DDKISRINFO isri;
    isri.cbSize = sizeof(isri);
    dwStatus = DDKReg_GetIsrInfo(m_regDevice, &isri);
    if (dwStatus != ERROR_SUCCESS) {
        DEBUGMSG(SDCARD_ZONE_ERROR, (_T("%s Error getting ISR information\r\n"),
            pszFname));
        goto EXIT;
    }

#ifdef SET_TI_BOARD_PCI_REG
	{
		DDKPCIINFO dpi;
		dpi.cbSize = sizeof(dpi);
		DDKReg_GetPciInfo(m_regDevice, &dpi);

		DWORD RetVal;
		PCI_SLOT_NUMBER SlotNumber;
		SlotNumber.u.AsULONG = 0;
		SlotNumber.u.bits.DeviceNumber = dpi.dwDeviceNumber;
		SlotNumber.u.bits.FunctionNumber = 1;

		HalGetBusDataByOffset( PCIConfiguration,
							   wini.dwBusNumber,
							   SlotNumber.u.AsULONG,
							   &RetVal,
							   0x84,
							   sizeof( RetVal ) );

		if (!(RetVal & 0x00200000)) {
			RetVal |= 0x00200000;
			HalSetBusDataByOffset( PCIConfiguration,
								   wini.dwBusNumber,
								   SlotNumber.u.AsULONG,
								   &RetVal,
								   0x84,
								   sizeof( RetVal ) );
		}
	}
#endif

    // Sanity check ISR
    if (isri.dwSysintr == SYSINTR_NOP) {
		RETAILMSG(0,(TEXT("%s No sysintr specified in registry\r\n"),pszFname));
        DEBUGMSG(SDCARD_ZONE_ERROR, (_T("%s No sysintr specified in registry\r\n"),
            pszFname));
        goto EXIT;
    }

    if (isri.szIsrDll[0] != 0) {
        if ( (isri.szIsrHandler[0] == 0) || (isri.dwIrq == IRQ_UNSPECIFIED) ) {
            DEBUGMSG(SDCARD_ZONE_ERROR, (_T("%s Invalid installable ISR information in registry\r\n"),
                pszFname));
            goto EXIT;
        }
    }

    m_interfaceType = (INTERFACE_TYPE) wini.dwInterfaceType;
    m_dwBusNumber = wini.dwBusNumber;

    DWORD dwSlotZeroWindow;
    dwSlotZeroWindow = DetermineFirstSlotWindow(&wini);

    DEBUGCHK(dwSlotZeroWindow < wini.dwNumMemWindows);
    DEBUGCHK( (dwSlotZeroWindow + m_cSlots) <= wini.dwNumMemWindows );

    // Use the slot zero window for the ISR
    PDEVICEWINDOW pWindowSlotZero = &wini.memWindows[dwSlotZeroWindow];
    PortAddress.LowPart = pWindowSlotZero->dwBase;
    PortAddress.HighPart = 0;

	RETAILMSG(0,(TEXT("CSDHCBase::InitializeHardware go on...\n")));

    // Install an ISR, if present
    if (isri.szIsrDll[0] != 0) {
        m_hISRHandler = LoadIntChainHandler(isri.szIsrDll, isri.szIsrHandler, 
            (BYTE) isri.dwIrq);

        if (m_hISRHandler == NULL) {
            DEBUGMSG(SDCARD_ZONE_ERROR, (_T("%s Error installing ISR\r\n"), pszFname));
            goto EXIT;
        } 
        else {
            GIISR_INFO  Info;
            DWORD       dwPhysAddr;

            fRet = BusTransBusAddrToStatic(m_hBusAccess, 
                (INTERFACE_TYPE) wini.dwInterfaceType,
                wini.dwBusNumber, PortAddress, pWindowSlotZero->dwLen,
                &inIoSpace, (PVOID *) &dwPhysAddr);
            if (fRet == FALSE) {
                DEBUGMSG(SDCARD_ZONE_ERROR,
                    (_T("%s Error translating bus address to static address\r\n"), 
                    pszFname));
                goto EXIT;
            }

            // Initialize ISR
            Info.SysIntr = isri.dwSysintr;
            Info.CheckPort = TRUE;
            Info.PortIsIO = (inIoSpace != 0);
            Info.UseMaskReg = FALSE;
            Info.PortAddr = dwPhysAddr + SDHC_SLOT_INT_STATUS;
            Info.PortSize = sizeof(USHORT);
            Info.Mask = 0xFF;

            fRet = KernelLibIoControl(m_hISRHandler, IOCTL_GIISR_INFO, &Info, 
                sizeof(Info), NULL, 0, NULL);
            if (fRet == FALSE) {
                DEBUGMSG(SDCARD_ZONE_ERROR, (_T("%s Error setting up ISR\r\n"), pszFname));
                goto EXIT;
            }
        }
    }

    m_dwSysIntr = isri.dwSysintr;
    DEBUGMSG(SDCARD_ZONE_INIT, (_T("%s IRQ 0x%X mapped to SYS_INTR 0x%X\r\n"), 
        pszFname, isri.dwIrq, m_dwSysIntr));

    const DWORD dwEndWindow = dwSlotZeroWindow + m_cSlots;

    for (DWORD dwWindow = dwSlotZeroWindow; dwWindow < dwEndWindow; ++dwWindow) {
        DEBUGCHK(dwWindow < wini.dwNumMemWindows);
        PDEVICEWINDOW pWindowSD = &wini.memWindows[dwWindow];

        DEBUGMSG(SDCARD_ZONE_INIT,
            (_T("%s Base address -> 0x%x; length -> 0x%x \r\n"),
            pszFname, pWindowSD->dwBase, pWindowSD->dwLen));

        PortAddress.LowPart = pWindowSD->dwBase;
        PortAddress.HighPart = 0;

        inIoSpace = 0;
        PVOID pvRegisters;
        DEBUGCHK(pWindowSlotZero->dwLen >= sizeof(SSDHC_REGISTERS));

	RETAILMSG(0,(TEXT("BusTransBusAddrToVirtual. 0x%X\n"),PortAddress));
        fRet = BusTransBusAddrToVirtual(m_hBusAccess, 
            (INTERFACE_TYPE) wini.dwInterfaceType,
            wini.dwBusNumber, PortAddress, pWindowSD->dwLen, &inIoSpace, 
            &pvRegisters);
        if (fRet == FALSE) {
				RETAILMSG(0,(TEXT("%s error translating SD address \r\n"),pszFname));
            DEBUGMSG(SDCARD_ZONE_ERROR,
                (_T("%s error translating SD address \r\n"),
                pszFname));
            goto EXIT;
        }

        DEBUGCHK(inIoSpace == 0); // Will not work for I/O mappings.

        DWORD dwSlot = dwWindow - dwSlotZeroWindow;
        DEBUGCHK(dwSlot < m_cSlots);
        m_pSlotInfos[dwSlot].pucRegisters = (volatile UCHAR*) pvRegisters;
        m_pSlotInfos[dwSlot].dwExtraInfo = pWindowSD->dwLen;
    }

    m_fHardwareInitialized = TRUE;
    fRet = TRUE;
	RETAILMSG(0,(TEXT("CSDHCBase::InitializeHardware finished.\n")));
EXIT:
    return fRet;
}


BOOL