/* DEMO9 : A/D Output with calibration                            */
/* step1 : Run DEMO9.EXE                                          */
/* -------------------------------------------------------------- */
#include "PIO.H"

void pio_da16_da(int cChannel_no,int iVal);

WORD  wBase,wIrq;
WORD  wN10V[16],wP10V[16],w00mA[16],w20mA[16],EEP;
long float fDeltaV[16],fDeltaI[16];
int   MaxChannel=0;

int main()
{
int   i,j,k;
WORD  wBoards,wRetVal,t1,t2,t3,t4,t5,t6;
WORD  wSubVendor,wSubDevice,wSubAux,wSlotBus,wSlotDevice;
char  c;

clrscr();

/* step1 : find address-mapping of PIO/PISO cards                 */
wRetVal=PIO_DriverInit(&wBoards,0x80,0x04,0x00);/*for PIO-DA16/8/4*/
printf("\n(1) Threr are %d PIO-DA16/8/4 Cards in this PC",wBoards);
if ( wBoards==0 )  exit(0);

printf("\n\n-------------- The Configuration Space --------------");
for(i=0;i<wBoards;i++)
   {
   PIO_GetConfigAddressSpace(i,&wBase,&wIrq,&wSubVendor,&wSubDevice,&wSubAux,&wSlotBus,&wSlotDevice);

   printf("\nCard_%d: wBase=%x,wIrq=%x,subID=[%x,%x,%x],SlotID=[%x,%x]",i,wBase,wIrq,wSubVendor,wSubDevice,wSubAux,wSlotBus,wSlotDevice);

   printf(" --> ");
   ShowPioPiso(wSubVendor,wSubDevice,wSubAux);
   }

PIO_GetConfigAddressSpace(0,&wBase,&wIrq,&t1,&t2,&t3,&t4,&t5);
                                                 /* select card_0 */
/* step2 : enable all D/I/O port                                  */
outportb(wBase,0x11);                            /* /RESET -> 1   */
outportb(wBase+2,0x1c);           /* AUX 4/3/2 are D/O, othes D/I */
outportb(wBase+3,0);              /* all D/O are Low              */

printf("\n\n(2) A/D Output with calibration test\n");

printf("\n<1> PIO-DA16");
printf("\n<2> PIO-DA8");
printf("\n<3> PIO-DA4\n\n");
do
{
printf("\rSelect (1-3): \b");
c=getche();
switch(c)
   {
   case '1': MaxChannel=16;
             break;
   case '2': MaxChannel=8;
             break;
   case '3': MaxChannel=4;
             break;
   default : MaxChannel=0;
   }
}
while(MaxChannel==0);

for (i=0; i<64;i++)
    {
    if (i<16)
       {
       EEP_READ(i,&j,&k);
       wN10V[i]=(j<<8)+k;
       }
    if ((i>=16)&&(i<32))
       {
       EEP_READ(i,&j,&k);
       wP10V[i-16]=(j<<8)+k;
       }
    if ((i>=32)&&(i<48))
       {
       EEP_READ(i,&j,&k);
       w00mA[i-32]=(j<<8)+k;
       }
    if (i>=48)
       {
       EEP_READ(i,&j,&k);
       w20mA[i-48]=(j<<8)+k;
       }
    }

for (i=0; i<MaxChannel; i++)
    {
    fDeltaV[i]=(float)20.0/((float)wP10V[i]-(float)wN10V[i]);
    fDeltaI[i]=(float)20.0/((float)w20mA[i]-(float)w00mA[i]);
    }

printf("\n\n    (a)   1.23V Voltage output to each channel");
for (i=0; i<MaxChannel; i++)
    {
    j=(1.23+10.0)/fDeltaV[i]+wN10V[i];
    pio_da16_da(i,j);
    }
getch();
printf("\n\n    (b) 1.23mA Current output to each channel");
for (i=0; i<MaxChannel; i++)
    {
    j=1.23/fDeltaI[i]+w00mA[i];
    pio_da16_da(i,j);
    }
getch();

outportb(wBase+5,0);                     /* disable all interrupt */
outportb(wBase+3,0);                     /* all D/O are Low       */
outportb(wBase+2,0);                     /* all AUX as D/I        */
PIO_DriverClose();
}

/* -------------------------------------------------------------- */
/* AUX2= D/O = CS of EEP            AUX3= D/O = SK of EEP         */
/* AUX4= D/O = DI of EEP            AUX5= D/I = DO of EEP         */
/* -------------------------------------------------------------- */
COMM()                                  /* send start 2-bit (0,1) */
{
EEP=0x04; outportb(wBase+3,EEP);        /* CS=H */
EEP=0x0C; outportb(wBase+3,EEP);        /* SK=H */
                                        /* DI=0 */
EEP=0x04; outportb(wBase+3,EEP);        /* SK=L */
EEP=0x14; outportb(wBase+3,EEP);        /* DI=1 */
EEP=0x1c; outportb(wBase+3,EEP);        /* SK=H */
}

/* -------------------------------------------------------------- */
WR_BYTE(int val)                           /* send the next 8-bit */
{
int i,j;

for (i=0; i<8; i++)
    {
    EEP=EEP&0x14; outportb(wBase+3,EEP);   /* SK=L */
    j=val&0x80; val=val<<1;
    if (j==0)                              /* DI=0 */
       {
       EEP=EEP&0x0C; outportb(wBase+3,EEP);
       }
    else                                   /* DI=1 */
       {
       EEP=EEP|0x10; outportb(wBase+3,EEP);
       }
    EEP=EEP|0x08; outportb(wBase+3,EEP);   /* SK=H */
    }
}

/* -------------------------------------------------------------- */
RD_BYTE()                                  /* read the next 8-bit */
{
int i,j,val,k;

val=0x80; k=0;
for (i=0; i<8; i++)
    {
    EEP=EEP&0x14; outportb(wBase+3,EEP);   /* SK=L */
    j=(inportb(wBase+7))&0x20;
    if (j!=0) k+=val;                      /* DO=1 */
    EEP=EEP|0x08; outportb(wBase+3,EEP);   /* SK=H */
    val=val>>1;
    }
return(k);
}

/* -------------------------------------------------------------- */
EEP_WR_EN()                               /* write Enable */
{
COMM();
WR_BYTE(0x30);                            /* write enable command */
EEP=EEP&0x14; outportb(wBase+3,EEP);      /* SK=L */
EEP=EEP&0x18; outportb(wBase+3,EEP);      /* CS=L */
EEP=EEP&0x0C; outportb(wBase+3,EEP);      /* DI=0 */
}

/* -------------------------------------------------------------- */
EEP_WR_DIS()                             /* write Disable */
{
COMM();
WR_BYTE(0);                              /* write disable command */
EEP=EEP&0x14; outportb(wBase+3,EEP);     /* SK=L */
EEP=EEP&0x18; outportb(wBase+3,EEP);     /* CS=L */
EEP=EEP&0x0C; outportb(wBase+3,EEP);     /* DI=0 */
}

/* -------------------------------------------------------------- */
EEP_WRITE(int ADDR, int HI, int LO)   /* write 16-bit data to EEP */
{
int i,j,k;

COMM();
ADDR=ADDR|0x40; WR_BYTE(ADDR);        /* write command & address  */
WR_BYTE(HI);                          /* high 8-bit data          */
WR_BYTE(LO);                          /* low  8-bit data          */

EEP=EEP&0x14; outportb(wBase+3,EEP);  /* SK=L */
EEP=EEP&0x18; outportb(wBase+3,EEP);  /* CS=L */
EEP=EEP&0x0C; outportb(wBase+3,EEP);  /* DI=0 */

for (i=0; i<10; i++)                  /* delay>250 ns (for EEP)   */
{
EEP=EEP|0x08; outportb(wBase+3,EEP);  /* SK=H */
EEP=EEP&0x14; outportb(wBase+3,EEP);  /* SK=L */
}

EEP=EEP|0x04; outportb(wBase+3,EEP);  /* CS=H */

for (k=0; k<10; k++)                  /* wait until write finish  */
for (i=0; i<30000; i++)
    {
    EEP=EEP|0x08; outportb(wBase+3,EEP);/* SK=H */
    j=inportb(wBase+7)&0x20;
    EEP=EEP&0x14; outportb(wBase+3,EEP);/* SK=L */
    if (j!=0) return(0);                /* write is finished      */
    }
EEP=EEP&0x18; outportb(wBase+3,EEP);    /* CS=L */
return(1);                              /* error --> time out ?   */
}

/* -------------------------------------------------------------- */
EEP_READ(int ADDR, int *HI, int *LO) /* read 16-bit data from EEP */
{
int i,j,k;

COMM();
ADDR=ADDR|0x80; WR_BYTE(ADDR);          /* read command & address */
EEP=EEP&0x0C; outportb(wBase+3,EEP);    /* DI=0 */
EEP=EEP&0x14; outportb(wBase+3,EEP);    /* SK=L */
EEP=EEP|0x08; outportb(wBase+3,EEP);    /* SK=H */
EEP=EEP&0x14; outportb(wBase+3,EEP);    /* SK=L */
(*HI)=RD_BYTE();                        /* read high 8-bit data   */
(*LO)=RD_BYTE();                        /* read low  8-bit data   */
EEP=EEP&0x14; outportb(wBase+3,EEP);    /* SK=L */
EEP=EEP&0x18; outportb(wBase+3,EEP);    /* CS=L */
}

/* -------------------------------------------------------------- */
void pio_da16_da(int iChannel_no,int iVal)
{
iVal=iVal+(iChannel_no%4)*0x4000;       /* iChannel_no : 0 - 15   */
outportb(wBase+0xf0,iVal);              /* iVal : 0x0000 - 0x3fff */
outportb(wBase+0xf4,(iVal>>8));
outportb(wBase+0xe0+4*(iChannel_no/4),0xff);
}