pccard.cpp

RTL8139 网卡驱动源码 for WinCE.net CEPC

#include "stdafx.h"
#include "pccard.h" 

const int READ_SIZE = 512;
const int MAX_REGIONS_NUM = 32;
const int BUFFER_SIZE = 8*1024;

HANDLE	CSWDM;

extern BYTE	*Buffer;

const DWORD	UnitSize [8] = 
{
512UL, 2048UL, 8192UL, 32768UL, 
128*1024UL, 512*1024UL, 2048*1024UL, 0
};

DWORD	CSOpen	(VOID)
{
//    CSWDM = CreateFile("\\\\.\\APSoft-Func-Device0", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
 //                  NULL, OPEN_EXISTING, 0, NULL);
    CSWDM = CreateFile("\\\\.\\FUJIXEROX-READCARD-Device0", GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
                   NULL, OPEN_EXISTING, 0, NULL);

    if (CSWDM == INVALID_HANDLE_VALUE)
	 return GetLastError ();
    else
	 return NO_ERROR;
}

DWORD CSGetCardServicesInfo(VOID)
{
    DWORD dwResult = 0;
    BOOL   bStatus;
    DWORD  dwVersion = 0; 

    bStatus = DeviceIoControl(CSWDM, IOCTL_GET_VERSION,
                              NULL,  0,
                              &dwVersion,  sizeof(dwVersion),
                              &dwResult, NULL);

    if(!bStatus)
    {
         return -1;
    }
	
    return NO_ERROR;
}

DWORD CSRegClient()
{
    BOOL  bStatus;                          // Status of the IOCTL ...
    DWORD dwBytesRet = 0;                   // Number of the returned bytes

    bStatus = DeviceIoControl(CSWDM, IOCTL_REG_CLIENT,
			NULL, 0,
			NULL, 0,
			&dwBytesRet, NULL);

    if(!bStatus)
    {
        return -1;
    }

    return NO_ERROR;
}

DWORD CSRelClient()
{
    BOOL  bStatus;                          // Status of the IOCTL ...
    DWORD dwBytesRet = 0;                   // Number of the returned bytes

    bStatus = DeviceIoControl(CSWDM, IOCTL_REL_CLIENT,
			NULL, 0,
			NULL, 0,
			&dwBytesRet, NULL);

    if(!bStatus)
    {
        return -1;
    }

    return NO_ERROR;
}

DWORD CSDetectCard(WORD &dwSocket)
{
    BOOL  bStatus;                          // Status of the IOCTL ...
    DWORD dwMask     = 0;                   // Socket mask
    DWORD dwBytesRet = 0;                   // Number of the returned bytes
    DWORD dwSockMask = 0;					// Output structure for IOCTL
    int   Socket     = 0; 


    bStatus = DeviceIoControl(CSWDM, IOCTL_GET_MASK,
			NULL, 0,
			&dwSockMask,   sizeof(dwSockMask),
			&dwBytesRet, NULL);
	
    if(!bStatus)
    {
        return -1;
    }

    dwMask = dwSockMask;

    for (int i = 0; i < 32; i++)
    {
        if ( dwMask & (0x01 << i) )
        {
	  Socket = i;
        }
    } 

    dwSocket = Socket;

    return NO_ERROR;
}

DWORD ReadMemoryRegion(WORD Socket, DWORD CardOff, DWORD ReadCount)
{
    BOOL          bStatus;                  // Status of the IOCTL ...
    GET_READMEMORY  InIOCTL;                  // Input structure of the IOCTL ...
    DWORD         dwBytesRet = 0;           // Number of the returned bytes


    memset (&InIOCTL, 0, sizeof(InIOCTL));
    memset (Buffer,   0, BUFFER_SIZE);

    InIOCTL.dwOffset      = CardOff;
    InIOCTL.dwLength      = ReadCount;

    bStatus = DeviceIoControl(CSWDM, IOCTL_GET_MEMORY,
                              &InIOCTL, sizeof(InIOCTL),
                              Buffer, BUFFER_SIZE,
                              &dwBytesRet, NULL);

    if(!bStatus)
	return -1;

    return 0;
}


DWORD GetParams(WORD Socket,CS_TYPE &type,DWORD &dwCardSize)
{
    BOOL          bStatus;                  // Status of the IOCTL ...
    BYTE	        TubleData[256];
    DWORD         dwBytesRet = 0; 
    
    bStatus = DeviceIoControl(CSWDM, IOCTL_GET_CIS,
			NULL, 0,
			TubleData, 256,
			&dwBytesRet, NULL);
    
    if(!bStatus)
	    return -1;
    
    int i,units,sizecode,DevType;
    
    i = 3;
    
    DevType = TubleData [2] >> 4;	
    if ((TubleData[2] & 7) == 7)
	    //* skip "Extended Device Speed" bytes *
	while (TubleData[i++] & 0x80);
    if (DevType == 14)
	    //* skip "Extended Device Type" bytes *
          while (TubleData[i++] & 0x80);
		    
    units    = (TubleData[i] >> 3) + 1;
    sizecode =  TubleData [i] & 7;
    dwCardSize = UnitSize [sizecode] * units;
    type = (CS_TYPE)DevType;
		    
    return NO_ERROR;
}

BOOL	CSClose	(VOID)
{
    return CloseHandle (CSWDM);
}