wince 6 s3c2440 io port opearation

Declare to IO port

volatile IOPreg     *s2440IOP = (IOPreg *)IOP_BASE;

IOPreg and IOP_BASE defined here:s2440.h

#define IOP_BASE      0xB1600000 // 0x56000000

typedef struct  {

unsigned int  rGPACON;            // 00

unsigned int  rGPADAT;

unsigned int  rPAD1[2];

unsigned int  rGPBCON;            // 10

unsigned int  rGPBDAT;

unsigned int  rGPBUP;

unsigned int  rPAD2;

unsigned int  rGPCCON;            // 20

unsigned int  rGPCDAT;

unsigned int  rGPCUP;

unsigned int  rPAD3;

unsigned int  rGPDCON;            // 30

unsigned int  rGPDDAT;

unsigned int  rGPDUP;

unsigned int  rPAD4;

unsigned int  rGPECON;            // 40

unsigned int  rGPEDAT;

unsigned int  rGPEUP;

unsigned int  rPAD5;

unsigned int  rGPFCON;            // 50

unsigned int  rGPFDAT;

unsigned int  rGPFUP;

unsigned int  rPAD6;

unsigned int  rGPGCON;            // 60

unsigned int  rGPGDAT;

unsigned int  rGPGUP;

unsigned int  rPAD7;

unsigned int  rGPHCON;            // 70

unsigned int  rGPHDAT;

unsigned int  rGPHUP;

unsigned int  rPAD8;

unsigned int  rMISCCR;            // 80

unsigned int  rDCKCON;

unsigned int  rEXTINT0;

unsigned int  rEXTINT1;

unsigned int  rEXTINT2;            // 90

unsigned int  rEINTFLT0;

unsigned int  rEINTFLT1;

unsigned int  rEINTFLT2;

unsigned int  rEINTFLT3;        // A0

unsigned int  rEINTMASK;

unsigned int  rEINTPEND;

unsigned int  rGSTATUS0;        // AC

unsigned int  rGSTATUS1;        // B0

unsigned int  rGSTATUS2;        // B4 ;;; SHL

unsigned int  rGSTATUS3;        // B8

unsigned int  rGSTATUS4;        // BC

unsigned int  rFLTOUT;            // C0

unsigned int  rDSC0;

unsigned int  rDSC1;

unsigned int  rMSLCON;

unsigned int  rGPJCON;            // D0

unsigned int  rGPJDAT;

unsigned int  rGPJUP;

unsigned int  rPAD9;

}IOPreg;

Operate the IO port like this:

s2440IOP->rGPBCON  = (s2440IOP->rGPBCON  &~(3 << 10)) | (1<< 10);

s2440IOP->rGPBDAT=s2440IOP->rGPBDAT&~(0x1<<5);