1 #ifndef drvAdcPi_h

     2 #define drvAdcPi_h

     3 #include <epicsTypes.h>

     4 #include <devLib.h>

     5 

     6 

     7 #define ADC_PI_MAX_CHANNEL 8

     8 

     9 #define MAX_CODE_12BIT 8191

    10 

    11 /** @brief Initialize the card  

    12  *

    13  * Initialize the card(called from startup script)

    14  */

    15 int adcPiConfigure (int cardnumber, unsigned int i2cAddress);

    16 

    17 /** @brief card handle

    18  *

    19  * Define a type for the card handle

    20  */

    21 typedef struct adcPiCard adcPiCard;

    22 

    23 /** @brief open card

    24  *

    25  * Get card handle for card number

    26  */

    27 adcPiCard* adcPiOpen (int cardnumber);

    28 

    29 /** @brief get values

    30  *

    31  * Read values from channels

    32  */

    33 int adcPiGet (adcPiCard* card, int signal, epicsUInt16* pvalue);

    34 

    35 #endif