ad7606_support.h

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/***************************************************************************/
#ifndef AD7606_SUPPORT_H_
#define AD7606_SUPPORT_H_
 
/******************************************************************************/
/***************************** Include Files **********************************/
/******************************************************************************/
 
#include "ad7606.h"
 
/******************************************************************************/
/********************** Macros and Constants Definition ***********************/
/******************************************************************************/
 
/* Offset b/w two channel selections in CHx_RANGE register */
#define CHANNEL_RANGE_MSK_OFFSET    4
 
/* AD7606_REG_OVERSAMPLING */
#define AD7606_OVERSAMPLING_MSK     NO_OS_GENMASK(3,0)
 
/* Default channel range for AD7606 devices */
#define DEFAULT_CHN_RANGE   (10.0)
 
/* Diagnostic channels Mux configurations */
#define AD7606_DIAGN_MUX_CH_VAL(ch, val)    (val << (3 * ((ch) % 2)))
 
#define AD7606_OPEN_DETECT_ENABLE_MSK(ch)   (NO_OS_GENMASK(7,0) & (~(1 << ch)))
 
/* Diagnostic channels Mux select bits */
#define ANALOG_INPUT_MUX    0X00
#define TEMPERATURE_MUX     0x01
#define VREF_MUX            0X02
#define ALDO_MUX            0X03
#define DLDO_MUX            0X04
#define VDRIVE_MUX          0x05
 
/* Diagnostic Mux multiplers */
#define VREF_MUX_MULTIPLIER     4.0
 
/* Unipolar inputs range bits for AD7606C */
#define AD7606C_UNIPOLAR_RANGE_MIN  5
#define AD7606C_UNIPOLAR_RANGE_MAX  7
 
/* Number of AD7606 registers */
#define NUM_OF_REGISTERS    0x2F
 
/******************************************************************************/
/********************** Variables and User Defined Data Types *****************/
/******************************************************************************/
 
/* Analog input polarity */
typedef enum {
    UNIPOLAR,
    BIPOLAR
} polarity_e;
 
/******************************************************************************/
/************************ Public Declarations *********************************/
/******************************************************************************/
 
int32_t ad7606_read_converted_sample(struct ad7606_dev *dev, uint32_t *adc_data,
                     uint8_t input_chn);
int32_t ad7606_read_single_sample(struct ad7606_dev *dev,
                  uint32_t *adc_data, uint8_t chn);
polarity_e ad7606_get_input_polarity(uint8_t chn_range_bits);
 
#endif /* AD7606_SUPPORT_H_ */