main.c

三星SMDK2410 BPS.支持Windows CE 5.0.

    //
    if (!(g_BootConfig.ConfigFlags & CONFIG_FLAGS_DHCP))
    {
        // Static IP address.
        pBSPArgs->kitl.ipAddress  = g_BootConfig.IPAddr;
        pBSPArgs->kitl.ipMask     = g_BootConfig.SubnetMask;
        pBSPArgs->kitl.flags     &= ~OAL_KITL_FLAGS_DHCP;
        pdwDHCPLeaseTime = NULL;
        OALMSG(TRUE, (TEXT("INFO: Using static IP address %s.\r\n"), inet_ntoa(pBSPArgs->kitl.ipAddress))); 
        OALMSG(TRUE, (TEXT("INFO: Using subnet mask %s.\r\n"),       inet_ntoa(pBSPArgs->kitl.ipMask))); 
    }
    else
    {
        pBSPArgs->kitl.ipAddress = 0;
        pBSPArgs->kitl.ipMask    = 0;
    }

    // Initialize the the TFTP transport.
    //
    g_DeviceAddr.dwIP = pBSPArgs->kitl.ipAddress;
    memcpy(g_DeviceAddr.wMAC, pBSPArgs->kitl.mac, (3 * sizeof(UINT16)));
    g_DeviceAddr.wPort = 0;

    if (!EbootInitEtherTransport(&g_DeviceAddr,
                                 &pBSPArgs->kitl.ipMask,
                                 &bGotJump,
                                 pdwDHCPLeaseTime,
                                 EBOOT_VERSION_MAJOR,
                                 EBOOT_VERSION_MINOR,
                                 BSP_DEVICE_PREFIX,
                                 pBSPArgs->deviceId,
                                 EDBG_CPU_ARM720,
                                 dwBootFlags))
    {
        OALMSG(OAL_ERROR, (TEXT("ERROR: OEMPreDownload: Failed to initialize Ethernet connection.\r\n")));
        return(BL_ERROR);
    }


    // If the user wanted a DHCP address, we presumably have it now - save it for the OS to use.
    //
    if (g_BootConfig.ConfigFlags & CONFIG_FLAGS_DHCP)
    {
        // DHCP address.
        pBSPArgs->kitl.ipAddress  = g_DeviceAddr.dwIP;
        pBSPArgs->kitl.flags     |= OAL_KITL_FLAGS_DHCP;
    }

    return(bGotJump ? BL_JUMP : BL_DOWNLOAD);
}


/*
    @func   BOOL | OEMReadData | Generically read download data (abstracts actual transport read call).
    @rdesc  TRUE = Success, FALSE = Failure.
    @comm    
    @xref   
*/
BOOL OEMReadData(DWORD dwData, PUCHAR pData)
{
    return(EbootEtherReadData(dwData, pData));
}


/*
    @func   void | OEMShowProgress | Displays download progress for the user.
    @rdesc  N/A.
    @comm    
    @xref   
*/
void OEMShowProgress(DWORD dwPacketNum)
{
}


/*
    @func   void | OEMLaunch | Executes the stored/downloaded image.
    @rdesc  N/A.
    @comm    
    @xref   
*/

void OEMLaunch( DWORD dwImageStart, DWORD dwImageLength, DWORD dwLaunchAddr, const ROMHDR *pRomHdr )
{
    DWORD dwPhysLaunchAddr;
    EDBG_OS_CONFIG_DATA *pCfgData;    
    EDBG_ADDR EshellHostAddr;
    EDBG_ADDR DeviceAddr;

    
    // If the user requested that a disk image (stored in RAM now) be written to the SmartMedia card, so it now.
    //
    if (g_BootConfig.ConfigFlags & CONFIG_FLAGS_SAVETOFLASH)
    {
        // Since this platform only supports RAM images, the image cache address is the same as the image RAM address.
        //
        if (!WriteDiskImageToSmartMedia(dwImageStart, dwImageLength, &g_BootConfig))
        {
            OALMSG(OAL_ERROR, (TEXT("ERROR: OEMLaunch: Failed to store image to Smart Media.\r\n")));
            goto CleanUp;
        }

        // Store the bootloader settings to flash.
        //
        // TODO: minimize flash writes.
        //
        if (!WriteBootConfig(&g_BootConfig))
        {
            OALMSG(OAL_ERROR, (TEXT("ERROR: OEMLaunch: Failed to store bootloader settings to flash.\r\n")));
            goto CleanUp;
        }

        OALMSG(TRUE, (TEXT("INFO: Disk image stored to Smart Media.  Please Reboot.  Halting...\r\n")));
        while(1)
        {
            // Wait...
        }
    }

    // Wait for Platform Builder to connect after the download and send us IP and port settings for service
    // connections - also sends us KITL flags.  This information is used later by the OS (KITL).
    //
    if (g_bWaitForConnect)
    {
        memset(&EshellHostAddr, 0, sizeof(EDBG_ADDR));

        DeviceAddr.dwIP  = pBSPArgs->kitl.ipAddress;
        memcpy(DeviceAddr.wMAC, pBSPArgs->kitl.mac, (3 * sizeof(UINT16)));
        DeviceAddr.wPort = 0;

        if (!(pCfgData = EbootWaitForHostConnect(&DeviceAddr, &EshellHostAddr)))
        {
            OALMSG(OAL_ERROR, (TEXT("ERROR: OEMLaunch: EbootWaitForHostConnect failed.\r\n")));
            goto CleanUp;
        }

        // If the user selected "passive" KITL (i.e., don't connect to the target at boot time), set the
        // flag in the args structure so the OS image can honor it when it boots.
        //
        if (pCfgData->KitlTransport & KTS_PASSIVE_MODE)
        {
            pBSPArgs->kitl.flags |= OAL_KITL_FLAGS_PASSIVE;
        }
    }

    // If a launch address was provided, we must have downloaded the image, save the address in case we
    // want to jump to this image next time.  If no launch address was provided, retrieve the last one.
    //
    if (dwLaunchAddr)
    {
        g_BootConfig.LaunchAddress = dwLaunchAddr;
    }
    else
    {
        dwLaunchAddr = g_BootConfig.LaunchAddress;
    }

    // Save bootloader settings in flash.
    //
    // TODO: minimize flash writes.
    //
    if (!WriteBootConfig(&g_BootConfig))
    {
        OALMSG(OAL_ERROR, (TEXT("ERROR: OEMLaunch: Failed to store bootloader settings in flash.\r\n")));
        goto CleanUp;
    }

    // Jump to downloaded image (use the physical address since we'll be turning the MMU off)...
    //
    dwPhysLaunchAddr = (DWORD)OALVAtoPA((void *)dwLaunchAddr);
    OALMSG(TRUE, (TEXT("INFO: OEMLaunch: Jumping to Physical Address 0x%Xh (Virtual Address 0x%Xh)...\r\n\r\n\r\n"), dwPhysLaunchAddr, dwLaunchAddr));

    // Jump...
    //
    Launch(dwPhysLaunchAddr);


CleanUp:

    OALMSG(TRUE, (TEXT("ERROR: OEMLaunch: Halting...\r\n")));
    SpinForever();
}


//------------------------------------------------------------------------------
//
//  Function Name:  OEMVerifyMemory( DWORD dwStartAddr, DWORD dwLength )
//  Description..:  This function verifies the passed address range lies
//                  within a valid region of memory. Additionally this function
//                  sets the g_ImageType if the image is a boot loader. 
//  Inputs.......:  DWORD           Memory start address
//                  DWORD           Memory length
//  Outputs......:  BOOL - true if verified, false otherwise
//
//------------------------------------------------------------------------------

BOOL OEMVerifyMemory( DWORD dwStartAddr, DWORD dwLength )
{
    BOOL    rc;                 // return code
    DWORD   Addr1;              // starting address
    DWORD   Addr2;              // ending   address

    // Convert address to a cached address.
    //
    dwStartAddr &= ~CACHED_TO_UNCACHED_OFFSET;

    // Setup address range for comparison
    //
    Addr1 = dwStartAddr;
    Addr2 = Addr1 + (dwLength - 1);

    EdbgOutputDebugString( "****** OEMVerifyMemory Checking Range [ 0x%x ==> 0x%x ]\r\n", Addr1, Addr2 );

    // Validate the bootloader range to set the g_ImageType. The bootloader address
    // range is a subset of the whole flash range. This is required as the original
    // function set the image type based on this. Therefore this check is done before
    // the whole FLASH range is checked.

    if( (Addr1 >= FLASH_EBOOT_START) && (Addr2 <= FLASH_EBOOT_END) )
    {
        EdbgOutputDebugString("****** bootloader address ****** \r\n\r\n");

        // Set the image type 

        g_ImageType = IMAGE_LOADER;
        rc = TRUE;
    }
    else if( (Addr1 >= FLASH_START) && (Addr1 <= FLASH_END) )
    {
        EdbgOutputDebugString("****** FLASH address ****** \r\n\r\n");

        rc = TRUE;
    }
    else if( (Addr1 >= RAM_START) && (Addr2 <= RAM_END ) )
    {
        EdbgOutputDebugString("****** RAM address ****** \r\n\r\n");

        rc = TRUE;
    }
    else
    {
        EdbgOutputDebugString("****** OEMVerifyMemory FAILED - Invalid Memory Area ****** \r\n\r\n");

        rc = FALSE;
    }

    // Indicate status

    return( rc );
}

/////////////////////// START - Stubbed functions - START //////////////////////////////
/*
    @func   void | SC_WriteDebugLED | Write to debug LED.
    @rdesc  N/A.
    @comm    
    @xref   
*/

void SC_WriteDebugLED(USHORT wIndex, ULONG dwPattern)
{
    // Stub - needed by NE2000 EDBG driver...
    //
}


ULONG HalSetBusDataByOffset(IN BUS_DATA_TYPE BusDataType,
                            IN ULONG BusNumber,
                            IN ULONG SlotNumber,
                            IN PVOID Buffer,
                            IN ULONG Offset,
                            IN ULONG Length)
{
    return(0);
}


ULONG
HalGetBusDataByOffset(IN BUS_DATA_TYPE BusDataType,
                      IN ULONG BusNumber,
                      IN ULONG SlotNumber,
                      IN PVOID Buffer,
                      IN ULONG Offset,
                      IN ULONG Length)
{
    return(0);
}


BOOLEAN HalTranslateBusAddress(IN INTERFACE_TYPE  InterfaceType,
                               IN ULONG BusNumber,
                               IN PHYSICAL_ADDRESS BusAddress,
                               IN OUT PULONG AddressSpace,
                               OUT PPHYSICAL_ADDRESS TranslatedAddress)
{

    // All accesses on this platform are memory accesses...
    //
    if (AddressSpace)
        *AddressSpace = 0;
 
    // 1:1 mapping...
    //
    if (TranslatedAddress)
    {
        *TranslatedAddress = BusAddress;
        return(TRUE);
    }

    return(FALSE);
}


PVOID MmMapIoSpace(IN PHYSICAL_ADDRESS PhysicalAddress,
                   IN ULONG NumberOfBytes,
                   IN BOOLEAN CacheEnable)
{
    DWORD dwAddr = PhysicalAddress.LowPart;

    if (CacheEnable)
        dwAddr &= ~CACHED_TO_UNCACHED_OFFSET; 
    else
        dwAddr |= CACHED_TO_UNCACHED_OFFSET; 

    return((PVOID)dwAddr);
}


VOID MmUnmapIoSpace(IN PVOID BaseAddress,
                    IN ULONG NumberOfBytes)
{
}

VOID WINAPI SetLastError(DWORD dwErrCode)
{
}
/////////////////////// END - Stubbed functions - END //////////////////////////////


/*
    @func   void | OEMDownloadFileNotify | Receives/processes download file manifest.
    @rdesc  None.
    @comm    
    @xref   
*/
void OEMDownloadFileNotify(PDownloadManifest pInfo)
{
    DWORD dwCount;
    DWORD dwNumNB0Files = 0;

    if (!pInfo) return;

    EdbgOutputDebugString("\r\nDownload file information:\r\n");
    EdbgOutputDebugString("-------------------------------------------------------------------------------\r\n");

    for (dwCount = 0 ; dwCount < pInfo->dwNumRegions ; dwCount++)
    {

        EdbgOutputDebugString("[%d]: Address=0x%x  Length=0x%x  Name=%s\r\n", dwCount, 
                                                                              pInfo->Region[dwCount].dwRegionStart, 
                                                                              pInfo->Region[dwCount].dwRegionLength, 
                                                                              pInfo->Region[dwCount].szFileName);

        // .nb0 files will have a start address of 0 because Platform Builder
        // won't know where to place them.  We'll support only one .nb0 file
        // download (this is an Image Update disk image).  If we need to
        // support more than one .nb0 file download in the future, we'll need
        // to differentiate them by filename.
        //
        if (pInfo->Region[dwCount].dwRegionStart == 0)
        {
            // We only support one raw binary file (disk image).
            if (dwNumNB0Files++)
            {
                EdbgOutputDebugString("ERROR: This bootloader doesn't support downloading a second .nb0 binary image.\r\n");
                SpinForever();
            }

            // The disk image .nb0 file should be placed immediately after the
            // bootloader image in flash.
            pInfo->Region[dwCount].dwRegionStart = 0x80001000;

            EdbgOutputDebugString("INFO: Changed start address for %s to 0x%x.\r\n", pInfo->Region[dwCount].szFileName, 
                                                                                     pInfo->Region[dwCount].dwRegionStart);

        }
    }

    EdbgOutputDebugString("\r\n");

    return;
}


/*
    @func   BOOL | OEMDebugInit | Initializes the serial port for debug output message.
    @rdesc  TRUE == Success and FALSE == Failure.
    @comm    
    @xref   
*/
BOOL OEMDebugInit(void)
{

    // Set up function callbacks used by blcommon.
    //
    g_pOEMVerifyMemory   = OEMVerifyMemory;      // Verify RAM.
    g_pOEMMultiBINNotify = OEMDownloadFileNotify;

    // Call serial initialization routine (shared with the OAL).
    //
    OEMInitDebugSerial();

    return(TRUE);
}