/****************************************************************************
 *                            AD8DRV.H
 *
 * This is the header file for the AD8-16 Windows Driver.
 *
 * LAST MODIFICATION: AUGUST 23, 1993
 *
 ****************************************************************************/
// error_codes returned by the system
#define AD816_SUCCESS    0
#define CONFIG_CODE      2
#define BASE_ADDRESS     3
#define VOLTAGE_RANGE    4
#define CARD_INACTIVE    5
#define POINT_ERROR      7
#define POINT_INSTALL    8
#define LIST_EMPTY       9
#define LIST_ERROR       10
#define INVALID_CONV     11
#define INVALID_BUFFER   12
#define POINT_UNINSTALL  13
#define ACTIVE_PROCESS   14
#define BUFFER_EMPTY     15
#define INVALID_PTR      16
#define GAIN_ERROR       17
#define UNIT_ERROR       18
#define CHANNEL_ERROR    20
#define INVALID_IRQ      21
#define INVALID_COUNTER  24
#define FREQ_ERROR       25
#define INVALID_MODE     26
#define TIMEOUT          27
#define IRQ_UNINSTALL    29
#define PROCESS_ERROR    30
#define INPUT_TYPE       31
#define RANGE_ERROR      32
#define DAC_ERROR        33
#define DAC_RANGE        34
#define WINDOWSERROR     99
#define NOT_IMPLEMENTED  1000

// AD8-16 voltage range constants
#define UNIPOLAR_255  0
#define UNIPOLAR_10   1
#define BIPOLAR_127   2
#define BIPOLAR_5     3

// Process types
#define SOFTWARE    0
#define TIMER       1

// Mux type
#define DIFFERENTIAL  0
#define SINGLE_ENDED  1

// dac's
#define DAC0 0
#define DAC1 1

extern "C"
   {
   int PASCAL AD816_ClearPointList();
   int PASCAL AD816_AddPoints(int start,int stop);
   int PASCAL AD816_ResetListIndex();
   int PASCAL AD816_FetchPointConfig(int addr,float *low,float *hi);
   int PASCAL AD816_DelPtListIndexes(int start,int stop);
   int PASCAL AD816_GetNextPoint(int *addr,float *result);
   int PASCAL AD816_GetIndexPoint(int index,int *addr,float *result);
   int PASCAL AD816_GetDirectPoint(int addr,float *result);
   int PASCAL AD816_PollScan(int scans,int convs,int index);
   int PASCAL AD816_PostProcess(int scans,int convs,int index,float *buffer);
   int PASCAL AD816_SetPointConfig(int start,int stop,int range,float low,
                                   float hi);
   int PASCAL AD816_IRQStatus(int *scan,int *conv);
   int PASCAL AD816_IRQTerminate();
   int PASCAL AD816_IRQScan(int scans,int convs,int list_index,unsigned IRQ,
                            unsigned process_type,HWND hWnd);
   int PASCAL AD816_DACOut(int DAC,float voltage);
   int PASCAL AD816_DigitalOut(int value);
   int PASCAL AD816_DigitalIn(int *value);
   int PASCAL AD816_SetCounter(int counter,int mode,unsigned loadvalue,int bcd);
   int PASCAL AD816_ReadCounter(int counter,unsigned *value);
   int PASCAL AD816_DisableCounter(int counter,int state);
   int PASCAL AD816_RateGenerator(int counter,int divisor,float freq);
   int PASCAL AD816_MeasureFreq(int range,float *freq);
   int PASCAL AD816_MeasurePeriod(int range,float *period);
   int PASCAL AD816_SetSettleTime(int counts);
   int PASCAL AD816_Init(int addr,int muxtype);
   int PASCAL AD816_Shutdown();
   };