ad7124_support.h

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#ifndef AD7124_SUPPORT_H_
#define AD7124_SUPPORT_H_
 
#include "ad7124.h"
#include "no_os_util.h"
 
/* PGA Gain Value */
#define AD7124_PGA_GAIN(x) (1 << (x))
 
#define AD7124_REF_VOLTAGE 2.5
#define AD7124_ADC_N_BITS 24
 
/* ADC_Control Register bits */
#define AD7124_ADC_CTRL_REG_POWER_MODE_MSK    NO_OS_GENMASK(7,6)
#define AD7124_ADC_CTRL_REG_POWER_MODE_RD(x)  (((x) >> 6) & 0x3)
#define AD7124_ADC_CTRL_REG_MSK               NO_OS_GENMASK(5,2)
 
/* Channel Registers 0-15 bits */
#define AD7124_CH_MAP_REG_CH_ENABLE_RD(x)     (((x) >> 15) & 0x1)
#define AD7124_CH_MAP_REG_SETUP_MSK           NO_OS_GENMASK(14, 12)
#define AD7124_CH_MAP_REG_SETUP_RD(x)         (((x) >> 12) & 0x7)
#define AD7124_CH_MAP_REG_AINP_MSK            NO_OS_GENMASK(9, 5)
#define AD7124_CH_MAP_REG_AINP_RD(x)          (((x) >> 5) & 0x1F)
#define AD7124_CH_MAP_REG_AINM_MSK            NO_OS_GENMASK(4, 0)
#define AD7124_CH_MAP_REG_AINM_RD(x)          (((x) >> 0) & 0x1F)
 
/* Configuration Registers 0-7 bits */
#define AD7124_CFG_REG_BIPOLAR_RD(x)          (((x) >> 11) & 0x1)
#define AD7124_CFG_REG_REF_BUFP_RD(x)         (((x) >> 8) & 0x1)
#define AD7124_CFG_REG_REF_BUFM_RD(x)         (((x) >> 7) & 0x1)
#define AD7124_CFG_REG_AIN_BUFP_RD(x)         (((x) >> 6) & 0x1)
#define AD7124_CFG_REG_AINM_BUFP_RD(x)        (((x) >> 5) & 0x1)
#define AD7124_CFG_REG_REF_SEL_MSK            NO_OS_GENMASK(4, 3)
#define AD7124_CFG_REG_REF_SEL_RD(x)          (((x) >> 3) & 0x3)
#define AD7124_CFG_REG_PGA_MSK                NO_OS_GENMASK(2, 0)
#define AD7124_CFG_REG_PGA_RD(x)              (((x) >> 0) & 0x7)
 
/* Filter Register 0-7 bits */
#define AD7124_FILT_REG_FILTER_MSK            NO_OS_GENMASK(23, 21)
#define AD7124_FILT_REG_FILTER_RD(x)          (((x) >> 21) & 0x7)
#define AD7124_FILT_REG_FS_MSK                NO_OS_GENMASK(10, 0)
#define AD7124_FILT_REG_FS_RD(x)              (((x) >> 0) & 0x7FF)
 
uint8_t ad7124_get_channel_setup(struct ad7124_dev *dev, uint8_t channel);
uint8_t ad7124_get_channel_pga(struct ad7124_dev *dev, uint8_t channel);
bool ad7124_get_channel_bipolar(struct ad7124_dev *dev, uint8_t channel);
float ad7124_convert_sample_to_voltage(struct ad7124_dev *dev, uint8_t channel,
                       uint32_t sample);
 
#endif /* AD7124_SUPPORT_H_ */