adxl38x.h

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/***************************************************************************/
#ifndef __ADXL38X_H__
#define __ADXL38X_H__
 
#include <stdint.h>
#include <stdbool.h>
#include "no_os_i2c.h"
#include "no_os_spi.h"
 
/* Constants and Macros */
 
/* SPI */
#define ADXL38X_SPI_READ                0x01
#define ADXL38X_SPI_WRITE               0x00
 
/* Register Map fo ADXL38X (Rev H DS)*/
#define ADXL38X_DEVID_AD            0x00
#define ADXL38X_DEVID_MST           0x01
#define ADXL38X_PART_ID             0x02
#define ADXL38X_PART_ID_REV_ID          0x03
#define ADXL38X_SERIAL_NUMBER_0         0x04
#define ADXL38X_SERIAL_NUMBER_1         0x05
#define ADXL38X_SERIAL_NUMBER_2         0x06
#define ADXL38X_SERIAL_NUMBER_3         0x07
#define ADXL38X_SERIAL_NUMBER_4         0x08
#define ADXL38X_SERIAL_NUMBER_5         0x09
#define ADXL38X_SERIAL_NUMBER_6         0x0A
#define ADXL38X_DEV_DELTA_Q_X           0x0B
#define ADXL38X_DEV_DELTA_Q_Y           0x0C
#define ADXL38X_DEV_DELTA_Q_Z           0x0D
#define ADXL38X_DEV_DELTA_F0_X          0x0E
#define ADXL38X_DEV_DELTA_F0_Y          0x0F
#define ADXL38X_DEV_DELTA_F0_Z          0x10
#define ADXL38X_STATUS0             0x11
#define ADXL38X_STATUS1             0x12
#define ADXL38X_STATUS2             0x13
#define ADXL38X_STATUS3             0x14
#define ADXL38X_XDATA_H             0x15
#define ADXL38X_XDATA_L             0x16
#define ADXL38X_YDATA_H             0x17
#define ADXL38X_YDATA_L             0x18
#define ADXL38X_ZDATA_H             0x19
#define ADXL38X_ZDATA_L             0x1A
#define ADXL38X_TDATA_H             0x1B
#define ADXL38X_TDATA_L             0x1C
#define ADXL38X_FIFO_DATA           0x1D
#define ADXL38X_FIFO_STATUS0            0x1E
#define ADXL38X_FIFO_STATUS1            0x1F
#define ADXL38X_MISC0               0x20
#define ADXL38X_MISC1               0x21
#define ADXL38X_SENS_DSM            0x24
#define ADXL38X_CLK_CTRL            0x25
#define ADXL38X_OP_MODE             0x26
#define ADXL38X_DIG_EN              0x27
#define ADXL38X_SAR_I2C             0x28
#define ADXL38X_NVM_CTL             0x29
#define ADXL38X_REG_RESET           0x2A
#define ADXL38X_INT0_MAP0           0x2B
#define ADXL38X_INT0_MAP1           0x2C
#define ADXL38X_INT1_MAP0           0x2D
#define ADXL38X_INT1_MAP1           0x2E
#define ADXL38X_TEST_EN             0x2F
#define ADXL38X_FIFO_CFG0           0x30
#define ADXL38X_FIFO_CFG1           0x31
#define ADXL38X_SPT_CFG0            0x32
#define ADXL38X_SPT_CFG1            0x33
#define ADXL38X_SPT_CFG2            0x34
#define ADXL38X_SYNC_CFG            0x35
#define ADXL38X_PDM_CFG             0x36
#define ADXL38X_ACT_INACT_CTL           0x37
#define ADXL38X_SNSR_AXIS_EN            0x38
#define ADXL38X_THRESH_ACT_H            0x39
#define ADXL38X_THRESH_ACT_L            0x3A
#define ADXL38X_TIME_ACT_H          0x3B
#define ADXL38X_TIME_ACT_M          0x3C
#define ADXL38X_TIME_ACT_L          0x3D
#define ADXL38X_THRESH_INACT_H          0x3E
#define ADXL38X_THRESH_INACT_L          0x3F
#define ADXL38X_TIME_INACT_H            0x40
#define ADXL38X_TIME_INACT_M            0x41
#define ADXL38X_TIME_INACT_L            0x42
#define ADXL38X_TAP_THRESH          0x43
#define ADXL38X_TAP_DUR             0x44
#define ADXL38X_TAP_LATENT          0x45
#define ADXL38X_TAP_WINDOW          0x46
#define ADXL38X_TAP_CFG             0x47
#define ADXL38X_OR_CFG              0x48
#define ADXL38X_TRIG_CFG            0x49
#define ADXL38X_X_SAR_OFFSET            0x4A
#define ADXL38X_Y_SAR_OFFSET            0x4B
#define ADXL38X_Z_SAR_OFFSET            0x4C
#define ADXL38X_X_DSM_OFFSET            0x4D
#define ADXL38X_Y_DSM_OFFSET            0x4E
#define ADXL38X_Z_DSM_OFFSET            0x4F
#define ADXL38X_FILTER              0x50
#define ADXL38X_USER_TEMP_SENS_0        0x55
#define ADXL38X_USER_TEMP_SENS_1        0x56
#define ADXL38X_MISO                0x58
#define ADXL38X_SOUT0               0x59
#define ADXL38X_MCLK                0x5A
#define ADXL38X_BCLK                0x5B
#define ADXL38X_FSYNC               0x5C
#define ADXL38X_INT0                0x5D
#define ADXL38X_INT1                0x5E
 
/* Register reset value for ADXL38X */
#define ADXL38X_RESET_ZERO          0x00
#define ADXL38X_RESET_DEVID_AD          0xAD
#define ADXL38X_RESET_DEVID_MST         0x1D
#define ADXL38X_RESET_PART_ID           0x17
#define ADXL38X_RESET_PART_ID_REV_ID        0xC1
#define ADXL38X_RESET_STATUS0           0x80
#define ADXL38X_RESET_STATUS2           0x04
#define ADXL38X_RESET_INT0_MAP0         0x80
#define ADXL38X_RESET_INT1_MAP1         0x80
#define ADXL38X_RESET_SPT_CFG1          0x08
#define ADXL38X_RESET_SPT_CFG2          0x1A
 
/* Register masks */
#define ADXL38X_MASK_RANGE          0xC0
#define ADXL38X_MASK_OP_MODE            0x0F
#define ADXL38X_MASK_CHEN_DIG_EN        0xF0
#define ADXL38X_NEG_ACC_MSK         NO_OS_GENMASK(31, 16)
#define ADXL38X_SLF_TST_CTRL_MSK        0xE0
#define ADXL38X_FIFOCFG_FIFOMODE_MSK        0x30
 
/* Pre-defined codes */
#define ADXL38X_RESET_CODE                  0x52
#define ADXL38X_RESET_STATUS            0x80000400
 
/* Scale Factors */
/*
 * ADXL380
 * At +/- 4g with 16-bit resolution, scale from datasheet = 133.3ug/LSB.
 * 1333 * (10^-7)
 * For +/- 8g range a multiplier with value 2 is used.
 * For +/-16g range, a multiplier with value 4 is used.
 */
#define ADXL380_ACC_SCALE_FACTOR_GEE_MUL  (int64_t)     1333
/*
 * ADXL382
 * At +/- 15g with 16-bit resolution, scale from datasheet = 500ug/LSB.
 * 5000 * (10^-7)
 * For +/- 30g range a multiplier with value 2 is used.
 * For +/-60g range, a multiplier with value 4 is used.
 */
#define ADXL382_ACC_SCALE_FACTOR_GEE_MUL  (int64_t)     5000
/* Common denominator for ADXL380 and ADXL382 */
#define ADXL38X_ACC_SCALE_FACTOR_GEE_DIV  (int32_t) 10000000
/*
 * ADXL380/382 Temperature
 *
 * scale is 10.2 LSB/C.
 * Offset = 550LSB at 25C
 * offset at 0C = 550 - (10.2 * 25) LSB
 * offset at 0C = 295 LSB
 */
#define ADXL38X_TEMP_OFFSET (int32_t)       295
#define ADXL38X_TEMP_SCALE_NUM (int32_t)    102
#define ADXL38X_TEMP_SCALE_DEN (int32_t)    10
 
/* Sensitivity */
/*
 * ADXL380
 * At +/- 4g with 16-bit resolution, sensitivity from datasheet = 7500LSB/g.
 * For +/- 8g range a divisor with value 2 is used.
 * For +/-16g range, a divisor with value 4 is used.
 */
#define ADXL380_ACC_SENSITIVITY (int32_t)   7500
/*
 * ADXL382
 * At +/- 15g with 16-bit resolution, sensitivity from datasheet = 2000LSB/g.
 * For +/- 30g range a divisor with value 2 is used.
 * For +/-60g range, a divisor with value 4 is used.
 */
#define ADXL382_ACC_SENSITIVITY (int32_t)   2000
 
/* Self Test Limits */
/* ADXL380 */
#define ADXL380_XY_ST_LIMIT_MIN     29
#define ADXL380_Z_ST_LIMIT_MIN      27
#define ADXL380_XY_ST_LIMIT_MAX     50
#define ADXL380_Z_ST_LIMIT_MAX      32
/* ADXL382 */
#define ADXL382_XY_ST_LIMIT_MIN     31
#define ADXL382_Z_ST_LIMIT_MIN      26
#define ADXL382_XY_ST_LIMIT_MAX     42
#define ADXL382_Z_ST_LIMIT_MAX      34
 
#define ADXL38X_ST_LIMIT_DENOMINATOR    10

enum adxl38x_id {
    ID_ADXL380,
    ID_ADXL382,
};
enum adxl38x_id {…};
 
enum adxl38x_comm_type {
    ADXL38X_SPI_COMM,
    ADXL38X_I2C_COMM
};
enum adxl38x_comm_type {…};

enum adxl38x_range {
    ADXL380_RANGE_4G = 0,
    ADXL382_RANGE_15G = 0,
    ADXL380_RANGE_8G = 1,
    ADXL382_RANGE_30G = 1,
    ADXL380_RANGE_16G = 2,
    ADXL382_RANGE_60G = 2
};
enum adxl38x_range {…};

enum adxl38x_op_mode {
    ADXL38X_MODE_STDBY = 0,
    ADXL38X_MODE_HRT_SND = 1,
    ADXL38X_MODE_ULP = 2,
    ADXL38X_MODE_VLP = 3,
    ADXL38X_MODE_LP = 4,
    ADXL38X_MODE_LP_SERIAL_ULP_OP = 6,
    ADXL38X_MODE_LP_SERIAL_VLP_OP = 7,
    ADXL38X_MODE_RBW = 8,
    ADXL38X_MODE_RBW_SERIAL_ULP_OP = 10,
    ADXL38X_MODE_RBW_SERIAL_VLP_OP = 11,
    ADXL38X_MODE_HP = 12,
    ADXL38X_MODE_HP_SERIAL_ULP_OP = 14,
    ADXL38X_MODE_HP_SERIAL_VLP_OP = 15,
};
enum adxl38x_op_mode {…};

enum adxl38x_ch_select {
    ADXL38X_CH_DSB_ALL = 0,
    ADXL38X_CH_EN_X = 1,
    ADXL38X_CH_EN_Y = 2,
    ADXL38X_CH_EN_XY = 3,
    ADXL38X_CH_EN_Z = 4,
    ADXL38X_CH_EN_YZ = 6,
    ADXL38X_CH_EN_XYZ = 7,
    ADXL38X_CH_EN_T = 8,
    ADXL38X_CH_EN_ZT = 12,
    ADXL38X_CH_EN_YZT = 14,
    ADXL38X_CH_EN_XYZT = 15
};
enum adxl38x_ch_select {…};

enum adxl38x_fifo_mode {
    ADXL38X_FIFO_DISABLE = 0,
    ADXL38X_FIFO_NORMAL = 1,
    ADXL38X_FIFO_STREAM = 2,
    ADXL38X_FIFO_TRIGGER = 3
};
enum adxl38x_fifo_mode {…};

struct adxl38x_fractional_val {
    int64_t integer;
    int32_t fractional;
};
struct adxl38x_fractional_val {…};
 
union adxl38x_comm_desc {
    struct no_os_i2c_desc *i2c_desc;
    struct no_os_spi_desc *spi_desc;
};
union adxl38x_comm_desc {…};
 
union adxl38x_comm_init_param {
    struct no_os_i2c_init_param i2c_init;
    struct no_os_spi_init_param spi_init;
} ;
union adxl38x_comm_init_param {…};

struct adxl38x_dev {
    enum adxl38x_id dev_type;
    union adxl38x_comm_desc com_desc;
    enum adxl38x_comm_type comm_type;
    enum adxl38x_range range;
    enum adxl38x_op_mode op_mode;
 
    uint8_t comm_buff[320];
};
struct adxl38x_dev {…};

struct adxl38x_init_param {
    union adxl38x_comm_init_param comm_init;
    enum adxl38x_comm_type comm_type;
    enum adxl38x_id dev_type;
};
struct adxl38x_init_param {…};
 
struct _adxl38x_sts_reg_flags {
    //Status 3
    uint8_t DATA_READY : 1;
    uint8_t RESERVED2 : 7;
    //Status 2
    uint8_t UV_FLAG : 1;
    uint8_t UV_FLAG_STICKY : 1;
    uint8_t RESERVED1 : 1;
    uint8_t NVM_CRC_ERR : 1;
    uint8_t NVM_CRC_DONE : 1;
    uint8_t NVM_ECC_DET : 1;
    uint8_t RESERVED : 1;
    uint8_t NVM_ECC_DONE : 1;
    //Status 1
    uint8_t SINGLE_TAP : 1;
    uint8_t DOUBLE_TAP : 1;
    uint8_t TRIPLE_TAP : 1;
    uint8_t OVER_RANGE : 1;
    uint8_t OVER_RANGE_STICKY : 1;
    uint8_t ACT : 1;
    uint8_t INACT : 1;
    uint8_t NVM_IRQ : 1;
    //Status 0
    uint8_t PARITY_ERR_STICKY : 1;
    uint8_t FIFO_FULL : 1;
    uint8_t FIFO_OVR : 1;
    uint8_t FIFO_WATERMARK : 1;
    uint8_t FIFO_READY : 1;
    uint8_t EFUSE_BUSY_REGERR_STICKY : 1;
    uint8_t NVM_DONE : 1;
    uint8_t NVM_BUSY_STATUS : 1;
};
struct _adxl38x_sts_reg_flags {…};
 
union adxl38x_sts_reg_flags {
    struct _adxl38x_sts_reg_flags fields;
    uint32_t value;
};
union adxl38x_sts_reg_flags {…};
 
int adxl38x_read_device_data(struct adxl38x_dev *dev, uint8_t base_address,
                 uint16_t size, uint8_t *read_data);
int adxl38x_write_device_data(struct adxl38x_dev *dev, uint8_t base_address,
                  uint16_t size, uint8_t *write_data);
 
int adxl38x_register_update_bits(struct adxl38x_dev *dev, uint8_t reg_addr,
                 uint8_t mask,
                 uint8_t update_val);
 
int adxl38x_init(struct adxl38x_dev **device,
         struct adxl38x_init_param init_param);
 
int adxl38x_remove(struct adxl38x_dev *dev);
 
int adxl38x_soft_reset(struct adxl38x_dev *dev);
 
int adxl38x_get_sts_reg(struct adxl38x_dev *dev,
            union adxl38x_sts_reg_flags *status_flags);
 
int adxl38x_set_op_mode(struct adxl38x_dev *dev, enum adxl38x_op_mode op_mode);
 
int adxl38x_get_op_mode(struct adxl38x_dev *dev, enum adxl38x_op_mode *op_mode);
 
int adxl38x_set_range(struct adxl38x_dev *dev, enum adxl38x_range range_val);
 
int adxl38x_get_range(struct adxl38x_dev *dev, enum adxl38x_range *range_val);
 
int adxl38x_get_deviceID(struct adxl38x_dev *dev,
             enum adxl38x_id *devID);
 
int adxl38x_set_self_test_registers(struct adxl38x_dev *dev, bool st_mode,
                    bool st_force, bool st_dir);
 
int adxl38x_get_sts_reg(struct adxl38x_dev *dev,
            union adxl38x_sts_reg_flags *status_flags);
 
int adxl38x_get_raw_xyz(struct adxl38x_dev *dev, uint16_t *raw_x,
            uint16_t *raw_y, uint16_t *raw_z);
 
int adxl38x_get_temp(struct adxl38x_dev *dev,
             struct adxl38x_fractional_val *raw_temp);
 
int adxl38x_get_raw_data(struct adxl38x_dev *dev,
             enum adxl38x_ch_select channels,
             uint16_t *raw_x, uint16_t *raw_y,
             uint16_t *raw_z, uint16_t *raw_temp);
 
int adxl38x_get_xyz_gees(struct adxl38x_dev *dev,
             enum adxl38x_ch_select channels,
             struct adxl38x_fractional_val *x, struct adxl38x_fractional_val *y,
             struct adxl38x_fractional_val *z);
 
int adxl38x_selftest(struct adxl38x_dev *dev, enum adxl38x_op_mode op_mode,
             bool *st_x, bool *st_y, bool *st_z);
 
int adxl38x_accel_set_FIFO(struct adxl38x_dev *dev, uint16_t numSamples,
               bool externalTrigger, enum adxl38x_fifo_mode fifo_mode,
               bool chIDEnable, bool readReset);
 
int adxl38x_data_raw_to_gees(struct adxl38x_dev *dev, uint8_t *raw_accel_data,
                 struct adxl38x_fractional_val *data_frac);
 
#endif /* __ADXL38X_H__ */