/* dacq25vb.h : header file
 *
 * copyright (c) 1999 Base2 Computer Corporation
 *
 */

/* define types */
#define LPT1 0
#define LPT2 1
#define LPT3 2
#define SSCLK 0x01;
#define csclk 0xff - ssclk;
#define scs   0x0002;
#define ccs   0xffff - scs;
#define FALSE 0
#define TRUE !FALSE
enum a2dSelCh {CH0=0, CH1, CH2, CH3, CH4, CH5, CH6, CH7};
enum acqError {STSOK=0,NOPORTS,NOHWDET,PWRFLT,CLKFLT,MEMFLT,PPORTINV,TOOMANYPTS,
               RUNABORT};

/* ctl reg */
union Ua2dCtlReg {
  struct {
    unsigned char pd      : 2;
    unsigned char sglDifN : 1;
    unsigned char uniBipN : 1;
    unsigned char sel     : 3;
    unsigned char start   : 1;
  } bf;
  unsigned char w;
};

/* map lpt control out
 *  bit0 = strobe  = sclk
 *  bit1 = auto fd = sdi
 *  bit2 = init    = dld
 *  bit3 = slct in = cs
 */
union UlptCO {
  struct {
    unsigned char sclk   : 1;
    unsigned char sdi    : 1;
    unsigned char dld    : 1;
    unsigned char cs     : 1;
    unsigned char unused : 4;
  } bf;
  unsigned char w;
};

/* map lpt status in
 *  bit7 = busy
 *  bit6 = ack
 *  bit5 = pe
 *  bit4 = slct
 *  bit3 = error
 */
union UlptSI {
  struct {
    unsigned char unused : 3;
    unsigned char trig   : 1;
    unsigned char slct   : 1;
    unsigned char pe     : 1;
    unsigned char dsdo   : 1;
    unsigned char asdo   : 1;
  } bf;
  unsigned char w;
};

union UgetBits {
  struct {
    unsigned char bit0   : 1;
    unsigned char unused : 6;
    unsigned char bit7   : 1;
  } b;
  unsigned char w;
};

/* function prototypes */
__declspec(dllexport) unsigned char getDigDat(void);		/*get digital data*/
__declspec(dllexport) int getAnlgDat(int chnlID);			/*get analog data*/
__declspec(dllexport) void putDigDat(unsigned char dData);	/*set digital outputs*/
__declspec(dllexport) int setUpAnlgInput(int diffMask, int bpMask);	/*setup inputs*/
__declspec(dllexport) int detect(int lptID);				/*detect DACQ25 hardware*/
__declspec(dllexport) void initAcqHw();						/*initial DACQ25 driver*/
__declspec(dllexport) void sleep200();						/*delay 200 milliseconds*/
__declspec(dllexport) void doneAcqHw();						/*cleanup*/

/* end of file */