/* SPDX-License-Identifier: GPL-2.0 */ /* * IIO driver for Bosch BMI323 6-Axis IMU * * Copyright (C) 2023, Jagath Jog J <[email protected]> */ #ifndef _BMI323_H_ #define _BMI323_H_ #include <linux/bits.h> #include <linux/regmap.h> #include <linux/units.h> #define BMI323_I2C_DUMMY … #define BMI323_SPI_DUMMY … /* Register map */ #define BMI323_CHIP_ID_REG … #define BMI323_CHIP_ID_VAL … #define BMI323_CHIP_ID_MSK … #define BMI323_ERR_REG … #define BMI323_STATUS_REG … #define BMI323_STATUS_POR_MSK … /* Accelero/Gyro/Temp data registers */ #define BMI323_ACCEL_X_REG … #define BMI323_GYRO_X_REG … #define BMI323_TEMP_REG … #define BMI323_ALL_CHAN_MSK … /* Status registers */ #define BMI323_STATUS_INT1_REG … #define BMI323_STATUS_INT2_REG … #define BMI323_STATUS_NOMOTION_MSK … #define BMI323_STATUS_MOTION_MSK … #define BMI323_STATUS_STP_WTR_MSK … #define BMI323_STATUS_TAP_MSK … #define BMI323_STATUS_ERROR_MSK … #define BMI323_STATUS_TMP_DRDY_MSK … #define BMI323_STATUS_GYR_DRDY_MSK … #define BMI323_STATUS_ACC_DRDY_MSK … #define BMI323_STATUS_ACC_GYR_DRDY_MSK … #define BMI323_STATUS_FIFO_WTRMRK_MSK … #define BMI323_STATUS_FIFO_FULL_MSK … /* Feature registers */ #define BMI323_FEAT_IO0_REG … #define BMI323_FEAT_IO0_XYZ_NOMOTION_MSK … #define BMI323_FEAT_IO0_XYZ_MOTION_MSK … #define BMI323_FEAT_XYZ_MSK … #define BMI323_FEAT_IO0_STP_CNT_MSK … #define BMI323_FEAT_IO0_S_TAP_MSK … #define BMI323_FEAT_IO0_D_TAP_MSK … #define BMI323_FEAT_IO1_REG … #define BMI323_FEAT_IO1_ERR_MSK … #define BMI323_FEAT_IO2_REG … #define BMI323_FEAT_IO_STATUS_REG … #define BMI323_FEAT_IO_STATUS_MSK … #define BMI323_FEAT_ENG_POLL … #define BMI323_FEAT_ENG_TIMEOUT … /* FIFO registers */ #define BMI323_FIFO_FILL_LEVEL_REG … #define BMI323_FIFO_DATA_REG … /* Accelero/Gyro config registers */ #define BMI323_ACC_CONF_REG … #define BMI323_GYRO_CONF_REG … #define BMI323_ACC_GYRO_CONF_MODE_MSK … #define BMI323_ACC_GYRO_CONF_ODR_MSK … #define BMI323_ACC_GYRO_CONF_SCL_MSK … #define BMI323_ACC_GYRO_CONF_BW_MSK … #define BMI323_ACC_GYRO_CONF_AVG_MSK … /* FIFO registers */ #define BMI323_FIFO_WTRMRK_REG … #define BMI323_FIFO_CONF_REG … #define BMI323_FIFO_CONF_STP_FUL_MSK … #define BMI323_FIFO_CONF_ACC_GYR_EN_MSK … #define BMI323_FIFO_ACC_GYR_MSK … #define BMI323_FIFO_CTRL_REG … #define BMI323_FIFO_FLUSH_MSK … /* Interrupt pin config registers */ #define BMI323_IO_INT_CTR_REG … #define BMI323_IO_INT1_LVL_MSK … #define BMI323_IO_INT1_OD_MSK … #define BMI323_IO_INT1_OP_EN_MSK … #define BMI323_IO_INT1_LVL_OD_OP_MSK … #define BMI323_IO_INT2_LVL_MSK … #define BMI323_IO_INT2_OD_MSK … #define BMI323_IO_INT2_OP_EN_MSK … #define BMI323_IO_INT2_LVL_OD_OP_MSK … #define BMI323_IO_INT_CONF_REG … #define BMI323_IO_INT_LTCH_MSK … #define BMI323_INT_MAP1_REG … #define BMI323_INT_MAP2_REG … #define BMI323_NOMOTION_MSK … #define BMI323_MOTION_MSK … #define BMI323_STEP_CNT_MSK … #define BMI323_TAP_MSK … #define BMI323_TMP_DRDY_MSK … #define BMI323_GYR_DRDY_MSK … #define BMI323_ACC_DRDY_MSK … #define BMI323_FIFO_WTRMRK_MSK … #define BMI323_FIFO_FULL_MSK … /* Feature registers */ #define BMI323_FEAT_CTRL_REG … #define BMI323_FEAT_ENG_EN_MSK … #define BMI323_FEAT_DATA_ADDR … #define BMI323_FEAT_DATA_TX … #define BMI323_FEAT_DATA_STATUS … #define BMI323_FEAT_DATA_TX_RDY_MSK … #define BMI323_FEAT_EVNT_EXT_REG … #define BMI323_FEAT_EVNT_EXT_S_MSK … #define BMI323_FEAT_EVNT_EXT_D_MSK … #define BMI323_CMD_REG … #define BMI323_RST_VAL … #define BMI323_CFG_RES_REG … /* Extended registers */ #define BMI323_GEN_SET1_REG … #define BMI323_GEN_SET1_MODE_MSK … #define BMI323_GEN_HOLD_DUR_MSK … /* Any Motion/No Motion config registers */ #define BMI323_ANYMO1_REG … #define BMI323_NOMO1_REG … #define BMI323_MO2_OFFSET … #define BMI323_MO3_OFFSET … #define BMI323_MO1_REF_UP_MSK … #define BMI323_MO1_SLOPE_TH_MSK … #define BMI323_MO2_HYSTR_MSK … #define BMI323_MO3_DURA_MSK … /* Step counter config registers */ #define BMI323_STEP_SC1_REG … #define BMI323_STEP_SC1_WTRMRK_MSK … #define BMI323_STEP_SC1_RST_CNT_MSK … #define BMI323_STEP_SC1_REG … #define BMI323_STEP_LEN … /* Tap gesture config registers */ #define BMI323_TAP1_REG … #define BMI323_TAP1_AXIS_SEL_MSK … #define BMI323_AXIS_XYZ_MSK … #define BMI323_TAP1_TIMOUT_MSK … #define BMI323_TAP1_MAX_PEAKS_MSK … #define BMI323_TAP1_MODE_MSK … #define BMI323_TAP2_REG … #define BMI323_TAP2_THRES_MSK … #define BMI323_TAP2_MAX_DUR_MSK … #define BMI323_TAP3_REG … #define BMI323_TAP3_QUIET_TIM_MSK … #define BMI323_TAP3_QT_BW_TAP_MSK … #define BMI323_TAP3_QT_AFT_GES_MSK … #define BMI323_MOTION_THRES_SCALE … #define BMI323_MOTION_HYSTR_SCALE … #define BMI323_MOTION_DURAT_SCALE … #define BMI323_TAP_THRES_SCALE … #define BMI323_DUR_BW_TAP_SCALE … #define BMI323_QUITE_TIM_GES_SCALE … #define BMI323_MAX_GES_DUR_SCALE … /* * The formula to calculate temperature in C. * See datasheet section 6.1.1, Register Map Overview * * T_C = (temp_raw / 512) + 23 */ #define BMI323_TEMP_OFFSET … #define BMI323_TEMP_SCALE … /* * The BMI323 features a FIFO with a capacity of 2048 bytes. Each frame * consists of accelerometer (X, Y, Z) data and gyroscope (X, Y, Z) data, * totaling 6 words or 12 bytes. The FIFO buffer can hold a total of * 170 frames. * * If a watermark interrupt is configured for 170 frames, the interrupt will * trigger when the FIFO reaches 169 frames, so limit the maximum watermark * level to 169 frames. In terms of data, 169 frames would equal 1014 bytes, * which is approximately 2 frames before the FIFO reaches its full capacity. * See datasheet section 5.7.3 FIFO Buffer Interrupts */ #define BMI323_BYTES_PER_SAMPLE … #define BMI323_FIFO_LENGTH_IN_BYTES … #define BMI323_FIFO_FRAME_LENGTH … #define BMI323_FIFO_FULL_IN_FRAMES … #define BMI323_FIFO_FULL_IN_WORDS … #define BMI323_INT_MICRO_TO_RAW(val, val2, scale) … #define BMI323_RAW_TO_MICRO(raw, scale) … struct device; int bmi323_core_probe(struct device *dev); extern const struct regmap_config bmi323_regmap_config; #endif
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