adxl367.h

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/***************************************************************************/
 
#ifndef __ADXL367_H__
#define __ADXL367_H__
 
#include <stdint.h>
#include <stdbool.h>
#include "no_os_spi.h"
#include "no_os_i2c.h"
 
/* ADXL367 communication commands */
#define ADXL367_WRITE_REG               0x0A
#define ADXL367_READ_REG                0x0B
#define ADXL367_READ_FIFO               0x0D
#define ADXL367_I2C_READ        0x01
#define ADXL367_I2C_WRITE       0x00
 
/* Registers */
#define ADXL367_REG_DEVID_AD            0x00
#define ADXL367_REG_DEVID_MST           0x01
#define ADXL367_REG_PARTID              0x02
#define ADXL367_REG_REVID               0x03
#define ADXL367_REG_SERIAL_NUMBER_3 0x04
#define ADXL367_REG_SERIAL_NUMBER_2 0x05
#define ADXL367_REG_SERIAL_NUMBER_1 0x06
#define ADXL367_REG_SERIAL_NUMBER_0 0x07
#define ADXL367_REG_XDATA               0x08
#define ADXL367_REG_YDATA               0x09
#define ADXL367_REG_ZDATA               0x0A
#define ADXL367_REG_STATUS              0x0B
#define ADXL367_REG_FIFO_ENTRIES_L      0x0C
#define ADXL367_REG_FIFO_ENTRIES_H      0x0D
#define ADXL367_REG_XDATA_H             0x0E
#define ADXL367_REG_XDATA_L             0x0F
#define ADXL367_REG_YDATA_H             0x10
#define ADXL367_REG_YDATA_L             0x11
#define ADXL367_REG_ZDATA_H             0x12
#define ADXL367_REG_ZDATA_L             0x13
#define ADXL367_REG_TEMP_H              0x14
#define ADXL367_REG_TEMP_L              0x15
#define ADXL367_REG_EX_ADC_H        0x16
#define ADXL367_REG_EX_ADC_L        0x17
#define ADXL367_REG_I2C_FIFO_DATA   0x18
#define ADXL367_REG_SOFT_RESET          0x1F
#define ADXL367_REG_THRESH_ACT_H        0x20
#define ADXL367_REG_THRESH_ACT_L        0x21
#define ADXL367_REG_TIME_ACT            0x22
#define ADXL367_REG_THRESH_INACT_H      0x23
#define ADXL367_REG_THRESH_INACT_L      0x24
#define ADXL367_REG_TIME_INACT_H        0x25
#define ADXL367_REG_TIME_INACT_L        0x26
#define ADXL367_REG_ACT_INACT_CTL       0x27
#define ADXL367_REG_FIFO_CONTROL    0x28
#define ADXL367_REG_FIFO_SAMPLES        0x29
#define ADXL367_REG_INTMAP1_LWR     0x2A
#define ADXL367_REG_INTMAP2_LWR     0x2B
#define ADXL367_REG_FILTER_CTL          0x2C
#define ADXL367_REG_POWER_CTL           0x2D
#define ADXL367_REG_SELF_TEST           0x2E
#define ADXL367_REG_TAP_THRESH          0x2F
#define ADXL367_REG_TAP_DUR     0x30
#define ADXL367_REG_TAP_LATENT      0x31
#define ADXL367_REG_TAP_WINDOW      0x32
#define ADXL367_REG_X_OFFSET        0x33
#define ADXL367_REG_Y_OFFSET        0x34
#define ADXL367_REG_Z_OFFSET        0x35
#define ADXL367_REG_X_SENS      0x36
#define ADXL367_REG_Y_SENS      0x37
#define ADXL367_REG_Z_SENS      0x38
#define ADXL367_REG_TIMER_CTL           0x39
#define ADXL367_REG_INTMAP1_UPPER       0x3A
#define ADXL367_REG_INTMAP2_UPPER   0x3B
#define ADXL367_REG_ADC_CTL     0x3C
#define ADXL367_REG_TEMP_CTL        0x3D
#define ADXL367_REG_TEMP_ADC_OV_TH_H    0x3E
#define ADXL367_REG_TEMP_ADC_OV_TH_L    0x3F
#define ADXL367_REG_TEMP_ADC_UN_TH_H    0x40
#define ADXL367_REG_TEMP_ADC_UN_TH_L    0x41
#define ADXL367_REG_TEMP_ADC_TIMER      0x42
#define ADXL367_REG_AXIS_MASK       0x43
#define ADXL367_REG_STATUS_COPY         0x44
#define ADXL367_REG_STATUS_2            0x45
 
/* ADXL367_REG_STATUS definitions */
#define ADXL367_STATUS_ERR_USER_REGS    NO_OS_BIT(7)
#define ADXL367_STATUS_AWAKE            NO_OS_BIT(6)
#define ADXL367_STATUS_INACT            NO_OS_BIT(5)
#define ADXL367_STATUS_ACT              NO_OS_BIT(4)
#define ADXL367_STATUS_FIFO_OVERRUN     NO_OS_BIT(3)
#define ADXL367_STATUS_FIFO_WATERMARK   NO_OS_BIT(2)
#define ADXL367_STATUS_FIFO_RDY         NO_OS_BIT(1)
#define ADXL367_STATUS_DATA_RDY         NO_OS_BIT(0)
 
/* ADXL367_REG_THRESH_H mask */
#define ADXL367_THRESH_H        0x7F
 
/* ADXL367_REG_THRESH_L mask */
#define ADXL367_THRESH_L        0xFC
 
/* ADXL367_REG_ACT_INACT_CTL definitions */
#define ADXL367_ACT_INACT_CTL_LINKLOOP_MSK  NO_OS_GENMASK(5, 4)
#define ADXL367_ACT_INACT_CTL_INACT_EN_MSK  NO_OS_GENMASK(3, 2)
#define ADXL367_ACT_INACT_CTL_ACT_EN_MSK    NO_OS_GENMASK(1, 0)
 
/* ADXL367_ACT_INACT_CTL_INACT_EN(x) options */
#define ADXL367_NO_INACTIVITY_DETECTION_ENABLED     0x0
#define ADXL367_INACTIVITY_ENABLE           0x1
#define ADXL367_NO_INACTIVITY_DETECTION_ENABLED_2   0x2
#define ADXL367_REFERENCED_INACTIVITY_ENABLE        0x3
 
/* ADXL367_ACT_INACT_CTL_ACT_EN(x) options */
#define ADXL367_NO_ACTIVITY_DETECTION       0x0
#define ADXL367_ACTIVITY_ENABLE         0x1
#define ADXL367_NO_ACTIVITY_DETECTION_2     0x2
#define ADXL367_REFERENCED_ACTIVITY_ENABLE  0x3
 
/* ADXL367_REG_FIFO_CONTROL */
#define ADXL367_FIFO_CONTROL_FIFO_CHANNEL_MSK   NO_OS_GENMASK(6, 3)
#define ADXL367_FIFO_CONTROL_FIFO_SAMPLES   NO_OS_BIT(2)
#define ADXL367_FIFO_CONTROL_FIFO_MODE_MSK  NO_OS_GENMASK(1, 0)
 
/* ADXL367_FIFO_CONTROL_FIFO_CHANNEL(x) options */
#define ADXL367_ALL_AXIS        0x0
#define ADXL367_X_AXIS          0x1
#define ADXL367_Y_AXIS          0x2
#define ADXL367_X_AXIS_2        0x3
#define ADXL367_ALL_AXIS_TEMP       0x4
#define ADXL367_X_AXIS_TEMP     0x5
#define ADXL367_Y_AXIS_TEMP     0x6
#define ADXL367_Z_AXIS_TEMP     0x7
#define ADXL367_ALL_AXIS_EXT_ADC    0x8
#define ADXL367_X_AXIS_EXT_ADC      0x9
#define ADXL367_Y_AXIS_EXT_ADC      0xA
#define ADXL367_Z_AXIS_EXT_ADC      0xB
 
/* ADXL367_FIFO_CONTROL_FIFO_MODE(x) options */
#define ADXL367_FIFO_DISABLE            0
#define ADXL367_FIFO_OLDEST_SAVED       1
#define ADXL367_FIFO_STREAM             2
#define ADXL367_FIFO_TRIGGERED          3
 
/* ADXL367_REG_INTMAP1_LOWER */
#define ADXL367_INTMAP1_INT_LOW_INT1        NO_OS_BIT(7)
#define ADXL367_INTMAP1_AWAKE_INT1      NO_OS_BIT(6)
#define ADXL367_INTMAP1_INACT_INT1      NO_OS_BIT(5)
#define ADXL367_INTMAP1_ACT_INT1        NO_OS_BIT(4)
#define ADXL367_INTMAP1_FIFO_OVERRUN_INT1   NO_OS_BIT(3)
#define ADXL367_INTMAP1_FIFO_WATERMARK_INT1 NO_OS_BIT(2)
#define ADXL367_INTMAP1_FIFO_RDY_INT1       NO_OS_BIT(1)
#define ADXL367_INTMAP1_DATA_RDY_INT1       NO_OS_BIT(0)
 
/* ADXL367_REG_INTMAP2_LOWER definitions */
#define ADXL367_INTMAP2_INT_LOW_INT2        NO_OS_BIT(7)
#define ADXL367_INTMAP2_AWAKE_INT2      NO_OS_BIT(6)
#define ADXL367_INTMAP2_INACT_INT2      NO_OS_BIT(5)
#define ADXL367_INTMAP2_ACT_INT2        NO_OS_BIT(4)
#define ADXL367_INTMAP2_FIFO_OVERRUN_INT2   NO_OS_BIT(3)
#define ADXL367_INTMAP2_FIFO_WATERMARK_INT2 NO_OS_BIT(2)
#define ADXL367_INTMAP2_FIFO_RDY_INT2       NO_OS_BIT(1)
#define ADXL367_INTMAP2_DATA_RDY_INT2       NO_OS_BIT(0)
 
/* ADXL367_REG_FILTER_CTL definitions */
#define ADXL367_FILTER_CTL_RANGE_MSK    NO_OS_GENMASK(7, 6)
#define ADXL367_FILTER_I2C_HS       NO_OS_BIT(5)
#define ADXL367_FILTER_CTL_RES      NO_OS_BIT(4)
#define ADXL367_FILTER_CTL_EXT_SAMPLE   NO_OS_BIT(3)
#define ADXL367_FILTER_CTL_ODR_MSK      NO_OS_GENMASK(2, 0)
 
/* ADXL367_FILTER_CTL_RANGE(x) options */
#define ADXL367_RANGE_2G                0 /* +/-2 g */
#define ADXL367_RANGE_4G                1 /* +/-4 g */
#define ADXL367_RANGE_8G                2 /* +/-8 g */
 
/* ADXL367_REG_POWER_CTL definitions */
#define ADXL367_POWER_CTL_RES           NO_OS_BIT(7)
#define ADXL367_POWER_CTL_EXT_CLK       NO_OS_BIT(6)
#define ADXL367_POWER_CTL_LOW_NOISE_MSK NO_OS_GENMASK(5, 4)
#define ADXL367_POWER_CTL_WAKEUP        NO_OS_BIT(3)
#define ADXL367_POWER_CTL_AUTOSLEEP     NO_OS_BIT(2)
#define ADXL367_POWER_CTL_MEASURE_MSK   NO_OS_GENMASK(1, 0)
 
/* ADXL367_POWER_CTL_NOISE(x) options */
#define ADXL367_NOISE_MODE_NORMAL       0
#define ADXL367_NOISE_MODE_LOW          1
#define ADXL367_NOISE_MODE_ULTRALOW     2
 
/* ADXL367_REG_SELF_TEST */
#define ADXL367_SELF_TEST_ST_FORCE      NO_OS_BIT(1)
#define ADXL367_SELF_TEST_ST            NO_OS_BIT(0)
 
/* XYZ_AXIS_OFFSET MASK */
#define ADXL367_XYZ_AXIS_OFFSET_MASK    0x1F
 
/* ADXL367_REG_INTMAPX_UPPER MASK */
#define ADXL367_INTMAPX_UPPER_MASK  0xDF
 
/* ADXL367_REG_ADC_CTL definitions. */
#define ADXL367_FIFO_8_12BIT_MSK        NO_OS_GENMASK(7,6)
#define ADXL367_ADC_INACT_EN            NO_OS_BIT(3)
#define ADXL367_ADC_ACT_EN          NO_OS_BIT(1)
#define ADXL367_ADC_EN              NO_OS_BIT(0)
 
/* ADXL367_REG_TEMP_CTL definitions. */
#define ADXL367_TEMP_INACT_EN           NO_OS_BIT(3)
#define ADXL367_TEMP_ACT_EN         NO_OS_BIT(1)
#define ADXL367_TEMP_EN             NO_OS_BIT(0)
 
/* ADXL367 device information */
#define ADXL367_DEVICE_AD               0xAD
#define ADXL367_DEVICE_MST              0x1D
#define ADXL367_PART_ID                 0xF7
 
/* ADXL367 Reset settings */
#define ADXL367_RESET_KEY               0x52
 
/* Channel ID for FIFO read */
#define ADXL367_FIFO_X_ID       0x00
#define ADXL367_FIFO_Y_ID       0x01
#define ADXL367_FIFO_Z_ID       0x02
#define ADXL367_FIFO_TEMP_ADC_ID    0x03
 
#define ADXL367_ABSOLUTE        0x00
#define ADXL367_REFERENCED      0x01
 
/*
 * At +/- 2g with 14-bit resolution, scale is given in datasheet as
 * 250ug/LSB = 0.0002500 * 9.80665 = 0.0024516625 m/s^2.
 * For +/- 4g range a multiplier with value 2 is used.
 * For +/-8g range, a multiplier with value 4 is used.
 */
#define ADXL367_ACC_SCALE_FACTOR_MUL  245166ULL
#define ADXL367_ACC_SCALE_FACTOR_DIV  1000000000
 
/*
 * At 25C, raw value is equal to 165 LSB. Raw value varies with 54LSB/C.
 * Offset = 25 * ADXL367_TEMP_PER_C - ADXL367_TEMP_25C = 1185.
 * Temp = (RAW + OFFSET) * SCALE
 *  */
#define ADXL367_TEMP_OFFSET     1185
#define ADXL367_TEMP_25C        165
#define ADXL367_TEMP_SCALE      18518518
#define ADXL367_TEMP_SCALE_DIV      1000000000
 
/* Min change = 90mg. Sensitivity = 4LSB / mg */
#define ADXL367_SELF_TEST_MIN   90 * 100 / 25
/* Max change = 270mg. Sensitivity = 4LSB / mg */
#define ADXL367_SELF_TEST_MAX   270 * 100 / 25

enum adxl367_comm_type {
    ADXL367_SPI_COMM,
    ADXL367_I2C_COMM
};
enum adxl367_comm_type {…};

enum adxl367_op_mode {
    ADXL367_OP_STANDBY = 0,
    ADXL367_OP_MEASURE = 2
};
enum adxl367_op_mode {…};

enum adxl367_range {
    ADXL367_2G_RANGE,
    ADXL367_4G_RANGE,
    ADXL367_8G_RANGE,
};
enum adxl367_range {…};

enum adxl367_odr {
    ADXL367_ODR_12P5HZ,
    ADXL367_ODR_25HZ,
    ADXL367_ODR_50HZ,
    ADXL367_ODR_100HZ,
    ADXL367_ODR_200HZ,
    ADXL367_ODR_400HZ,
};
enum adxl367_odr {…};

enum adxl367_fifo_mode {
    ADXL367_FIFO_DISABLED,
    ADXL367_OLDEST_SAVED,
    ADXL367_STREAM_MODE,
    ADXL367_TRIGGERED_MODE
};
enum adxl367_fifo_mode {…};

enum adxl367_fifo_format {
    /* All axis. Default mode. */
    ADXL367_FIFO_FORMAT_XYZ,
    /* X axis. */
    ADXL367_FIFO_FORMAT_X,
    /* Y axis. */
    ADXL367_FIFO_FORMAT_Y,
    /* Z axis. */
    ADXL367_FIFO_FORMAT_Z,
    /* All axis + temperature. */
    ADXL367_FIFO_FORMAT_XYZT,
    /* X axis + temperature. */
    ADXL367_FIFO_FORMAT_XT,
    /* Y axis + temperature. */
    ADXL367_FIFO_FORMAT_YT,
    /* Z axis + temperature. */
    ADXL367_FIFO_FORMAT_ZT,
    /* All axis + ADC. */
    ADXL367_FIFO_FORMAT_XYZA,
    /* X axis + ADC. */
    ADXL367_FIFO_FORMAT_XA,
    /* Y axis + ADC. */
    ADXL367_FIFO_FORMAT_YA,
    /* Z axis + ADC. */
    ADXL367_FIFO_FORMAT_ZA
};
enum adxl367_fifo_format {…};

enum adxl367_fifo_read_mode {
    /* Upper 12 bits plus channel ID.*/
    ADXL367_12B_CHID,
    /* Upper 8 bits, no channel ID. */
    ADXL367_8B,
    /* Upper 12 bits, no channel ID. */
    ADXL367_12B,
    /* 14 bits plus channel ID. Default mode. */
    ADXL367_14B_CHID
};
enum adxl367_fifo_read_mode {…};

struct adxl367_int_map {
    uint8_t err_fuse    : 1;
    uint8_t err_user_regs  : 1;
    uint8_t kpalv_timer  : 1;
    uint8_t temp_adc_hi  : 1;
    uint8_t temp_adc_low    : 1;
    uint8_t tap_two      : 1;
    uint8_t tap_one      : 1;
    uint8_t int_low  : 1;
    uint8_t awake      : 1;
    uint8_t inact      : 1;
    uint8_t act      : 1;
    uint8_t fifo_overrun    : 1;
    uint8_t fifo_watermark    : 1;
    uint8_t fifo_ready    : 1;
    uint8_t data_ready    : 1;
};
struct adxl367_int_map {…};

struct adxl367_fractional_val {
    int64_t integer;
    int32_t fractional;
};
struct adxl367_fractional_val {…};

struct adxl367_dev {
    enum adxl367_comm_type     comm_type;
    struct no_os_spi_desc     *spi_desc;
    struct no_os_i2c_desc         *i2c_desc;
    uint8_t i2c_slave_address;
    enum adxl367_range     range;
    enum adxl367_op_mode         op_mode;
    enum adxl367_odr         odr;
    enum adxl367_fifo_mode     fifo_mode;
    enum adxl367_fifo_format     fifo_format;
    enum adxl367_fifo_read_mode   fifo_read_mode;
    uint8_t             fifo_buffer[1027];
    uint16_t            x_offset;
    uint16_t            y_offset;
    uint16_t            z_offset;
};
struct adxl367_dev {…};

struct adxl367_init_param {
    enum adxl367_comm_type         comm_type;
    struct no_os_spi_init_param spi_init;
    struct no_os_i2c_init_param     i2c_init;
    uint8_t             i2c_slave_address;
};
struct adxl367_init_param {…};
 
/* Initializes the device. */
int adxl367_init(struct adxl367_dev **device,
         struct adxl367_init_param init_param);
 
/* Free the resources allocated by adxl367_init(). */
int adxl367_remove(struct adxl367_dev *dev);
 
/* Performs device self-test. */
int adxl367_self_test(struct adxl367_dev *dev);
 
/* Writes data into a register. */
int adxl367_set_register_value(struct adxl367_dev *dev,
                   uint8_t register_value,
                   uint8_t register_address);
 
/* Performs a burst read of a specified number of registers. */
int adxl367_get_register_value(struct adxl367_dev *dev,
                   uint8_t *read_data,
                   uint8_t  register_address,
                   uint8_t  bytes_number);
 
/* Performs a masked write to a register. */
int adxl367_reg_write_msk(struct adxl367_dev *dev,
              uint8_t reg_addr,
              uint8_t data,
              uint8_t mask);
 
/* Resets the device via comm. */
int adxl367_software_reset(struct adxl367_dev *dev);
 
/* Places the device into standby/measure mode. */
int adxl367_set_power_mode(struct adxl367_dev *dev,
               enum adxl367_op_mode mode);
 
/* Selects the measurement range. */
int adxl367_set_range(struct adxl367_dev *dev,
              enum adxl367_range range);
 
/* Selects the Output Data Rate of the device. */
int adxl367_set_output_rate(struct adxl367_dev *dev,
                enum adxl367_odr odr);
 
/* Sets user defined offset for each axis. */
int adxl367_set_offset(struct adxl367_dev *dev, uint16_t x_offset,
               uint16_t y_offset, uint16_t z_offset);
 
/* Reads the 3-axis raw data from the accelerometer. */
int adxl367_get_raw_xyz(struct adxl367_dev *dev,
            int16_t* x,
            int16_t* y,
            int16_t* z);
 
/* Reads the 3-axis raw data from the accelerometer and converts it to g. */
int adxl367_get_g_xyz(struct adxl367_dev *dev,
              struct adxl367_fractional_val* x,
              struct adxl367_fractional_val* y,
              struct adxl367_fractional_val* z);
 
/* Enables temperature reading. */
int adxl367_temp_read_en(struct adxl367_dev *dev, bool enable);
 
/* Enables adc reading and disables temperature reading. */
int adxl367_adc_read_en(struct adxl367_dev *dev, bool enable);
 
/* Reads the raw temperature of the device. */
int adxl367_read_raw_temp(struct adxl367_dev *dev, int16_t *raw_temp);
 
/* Reads the temperature of the device. */
int adxl367_read_temperature(struct adxl367_dev *dev,
                 struct adxl367_fractional_val *temp);
 
/* Reads ADC data. */
int adxl367_read_adc(struct adxl367_dev *dev, int16_t *data);
 
/* Reads the number of FIFO entries register value. */
int adxl367_get_nb_of_fifo_entries(struct adxl367_dev *dev,
                   uint16_t *entr_nb);
 
/* Sets the number of FIFO samples register value. */
int adxl367_set_fifo_sample_sets_nb(struct adxl367_dev *dev,
                    uint16_t sets_nb);
 
/* Sets FIFO mode. */
int adxl367_set_fifo_mode(struct adxl367_dev *dev,
              enum adxl367_fifo_mode mode);
 
/* Sets FIFO read mode. */
int adxl367_set_fifo_read_mode(struct adxl367_dev *dev,
                   enum adxl367_fifo_read_mode read_mode);
 
/* Sets FIFO data storage format. */
int adxl367_set_fifo_format(struct adxl367_dev *dev,
                enum adxl367_fifo_format format);
 
/* Configures FIFO feature. */
int adxl367_fifo_setup(struct adxl367_dev *dev,
               enum adxl367_fifo_mode mode,
               enum adxl367_fifo_format format,
               uint8_t sets_nb);
 
/* Reads raw values from FIFO. */
int adxl367_read_raw_fifo(struct adxl367_dev *dev, int16_t *x, int16_t *y,
              int16_t *z, int16_t *temp_adc, uint16_t *entries);
 
/* Reads converted values from FIFO. */
int adxl367_read_converted_fifo(struct adxl367_dev *dev,
                struct adxl367_fractional_val *x, struct adxl367_fractional_val *y,
                struct adxl367_fractional_val *z, struct adxl367_fractional_val *temp_adc,
                uint16_t *entries);
 
/* Enables specified events to interrupt pin. */
int adxl367_int_map(struct adxl367_dev *dev, struct adxl367_int_map *map,
            uint8_t pin);
 
/* Configures activity detection. */
int adxl367_setup_activity_detection(struct adxl367_dev *dev,
                     uint8_t  ref_or_abs,
                     uint16_t threshold,
                     uint8_t  time);
 
/* Configures inactivity detection. */
int adxl367_setup_inactivity_detection(struct adxl367_dev *dev,
                       uint8_t  ref_or_abs,
                       uint16_t threshold,
                       uint16_t  time);
 
#endif /* __ADXL367_H__ */