| /* |
| * Copyright (c) 2020 TDK Invensense |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #define DT_DRV_COMPAT invensense_icm42605 |
| |
| #include <zephyr/drivers/spi.h> |
| #include <zephyr/init.h> |
| #include <zephyr/sys/byteorder.h> |
| #include <zephyr/drivers/sensor.h> |
| #include <zephyr/logging/log.h> |
| |
| #include "icm42605.h" |
| #include "icm42605_reg.h" |
| #include "icm42605_setup.h" |
| #include "icm42605_spi.h" |
| |
| LOG_MODULE_REGISTER(ICM42605, CONFIG_SENSOR_LOG_LEVEL); |
| |
| static const uint16_t icm42605_gyro_sensitivity_x10[] = { |
| 1310, 655, 328, 164 |
| }; |
| |
| /* see "Accelerometer Measurements" section from register map description */ |
| static void icm42605_convert_accel(struct sensor_value *val, |
| int16_t raw_val, |
| uint16_t sensitivity_shift) |
| { |
| int64_t conv_val; |
| |
| conv_val = ((int64_t)raw_val * SENSOR_G) >> sensitivity_shift; |
| val->val1 = conv_val / 1000000; |
| val->val2 = conv_val % 1000000; |
| } |
| |
| /* see "Gyroscope Measurements" section from register map description */ |
| static void icm42605_convert_gyro(struct sensor_value *val, |
| int16_t raw_val, |
| uint16_t sensitivity_x10) |
| { |
| int64_t conv_val; |
| |
| conv_val = ((int64_t)raw_val * SENSOR_PI * 10) / |
| (sensitivity_x10 * 180U); |
| val->val1 = conv_val / 1000000; |
| val->val2 = conv_val % 1000000; |
| } |
| |
| /* see "Temperature Measurement" section from register map description */ |
| static inline void icm42605_convert_temp(struct sensor_value *val, |
| int16_t raw_val) |
| { |
| val->val1 = (((int64_t)raw_val * 100) / 207) + 25; |
| val->val2 = ((((int64_t)raw_val * 100) % 207) * 1000000) / 207; |
| |
| if (val->val2 < 0) { |
| val->val1--; |
| val->val2 += 1000000; |
| } else if (val->val2 >= 1000000) { |
| val->val1++; |
| val->val2 -= 1000000; |
| } |
| } |
| |
| static int icm42605_channel_get(const struct device *dev, |
| enum sensor_channel chan, |
| struct sensor_value *val) |
| { |
| const struct icm42605_data *drv_data = dev->data; |
| |
| switch (chan) { |
| case SENSOR_CHAN_ACCEL_XYZ: |
| icm42605_convert_accel(val, drv_data->accel_x, |
| drv_data->accel_sensitivity_shift); |
| icm42605_convert_accel(val + 1, drv_data->accel_y, |
| drv_data->accel_sensitivity_shift); |
| icm42605_convert_accel(val + 2, drv_data->accel_z, |
| drv_data->accel_sensitivity_shift); |
| break; |
| case SENSOR_CHAN_ACCEL_X: |
| icm42605_convert_accel(val, drv_data->accel_x, |
| drv_data->accel_sensitivity_shift); |
| break; |
| case SENSOR_CHAN_ACCEL_Y: |
| icm42605_convert_accel(val, drv_data->accel_y, |
| drv_data->accel_sensitivity_shift); |
| break; |
| case SENSOR_CHAN_ACCEL_Z: |
| icm42605_convert_accel(val, drv_data->accel_z, |
| drv_data->accel_sensitivity_shift); |
| break; |
| case SENSOR_CHAN_GYRO_XYZ: |
| icm42605_convert_gyro(val, drv_data->gyro_x, |
| drv_data->gyro_sensitivity_x10); |
| icm42605_convert_gyro(val + 1, drv_data->gyro_y, |
| drv_data->gyro_sensitivity_x10); |
| icm42605_convert_gyro(val + 2, drv_data->gyro_z, |
| drv_data->gyro_sensitivity_x10); |
| break; |
| case SENSOR_CHAN_GYRO_X: |
| icm42605_convert_gyro(val, drv_data->gyro_x, |
| drv_data->gyro_sensitivity_x10); |
| break; |
| case SENSOR_CHAN_GYRO_Y: |
| icm42605_convert_gyro(val, drv_data->gyro_y, |
| drv_data->gyro_sensitivity_x10); |
| break; |
| case SENSOR_CHAN_GYRO_Z: |
| icm42605_convert_gyro(val, drv_data->gyro_z, |
| drv_data->gyro_sensitivity_x10); |
| break; |
| case SENSOR_CHAN_DIE_TEMP: |
| icm42605_convert_temp(val, drv_data->temp); |
| break; |
| default: |
| return -ENOTSUP; |
| } |
| |
| return 0; |
| } |
| |
| int icm42605_tap_fetch(const struct device *dev) |
| { |
| int result = 0; |
| struct icm42605_data *drv_data = dev->data; |
| const struct icm42605_config *cfg = dev->config; |
| |
| if (drv_data->tap_en && |
| (drv_data->tap_handler || drv_data->double_tap_handler)) { |
| result = inv_spi_read(&cfg->spi, REG_INT_STATUS3, drv_data->fifo_data, 1); |
| if (drv_data->fifo_data[0] & BIT_INT_STATUS_TAP_DET) { |
| result = inv_spi_read(&cfg->spi, REG_APEX_DATA4, |
| drv_data->fifo_data, 1); |
| if (drv_data->fifo_data[0] & APEX_TAP) { |
| if (drv_data->tap_trigger.type == |
| SENSOR_TRIG_TAP) { |
| if (drv_data->tap_handler) { |
| LOG_DBG("Single Tap detected"); |
| drv_data->tap_handler(dev |
| , &drv_data->tap_trigger); |
| } |
| } else { |
| LOG_ERR("Trigger type is mismatched"); |
| } |
| } else if (drv_data->fifo_data[0] & APEX_DOUBLE_TAP) { |
| if (drv_data->double_tap_trigger.type == |
| SENSOR_TRIG_DOUBLE_TAP) { |
| if (drv_data->double_tap_handler) { |
| LOG_DBG("Double Tap detected"); |
| drv_data->double_tap_handler(dev |
| , &drv_data->tap_trigger); |
| } |
| } else { |
| LOG_ERR("Trigger type is mismatched"); |
| } |
| } else { |
| LOG_DBG("Not supported tap event"); |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int icm42605_sample_fetch(const struct device *dev, |
| enum sensor_channel chan) |
| { |
| int result = 0; |
| uint16_t fifo_count = 0; |
| struct icm42605_data *drv_data = dev->data; |
| const struct icm42605_config *cfg = dev->config; |
| |
| /* Read INT_STATUS (0x45) and FIFO_COUNTH(0x46), FIFO_COUNTL(0x47) */ |
| result = inv_spi_read(&cfg->spi, REG_INT_STATUS, drv_data->fifo_data, 3); |
| |
| if (drv_data->fifo_data[0] & BIT_INT_STATUS_DRDY) { |
| fifo_count = (drv_data->fifo_data[1] << 8) |
| + (drv_data->fifo_data[2]); |
| result = inv_spi_read(&cfg->spi, REG_FIFO_DATA, drv_data->fifo_data, |
| fifo_count); |
| |
| /* FIFO Data structure |
| * Packet 1 : FIFO Header(1), AccelX(2), AccelY(2), |
| * AccelZ(2), Temperature(1) |
| * Packet 2 : FIFO Header(1), GyroX(2), GyroY(2), |
| * GyroZ(2), Temperature(1) |
| * Packet 3 : FIFO Header(1), AccelX(2), AccelY(2), AccelZ(2), |
| * GyroX(2), GyroY(2), GyroZ(2), Temperature(1) |
| */ |
| if (drv_data->fifo_data[0] & BIT_FIFO_HEAD_ACCEL) { |
| /* Check empty values */ |
| if (!(drv_data->fifo_data[1] == FIFO_ACCEL0_RESET_VALUE |
| && drv_data->fifo_data[2] == |
| FIFO_ACCEL1_RESET_VALUE)) { |
| drv_data->accel_x = |
| (drv_data->fifo_data[1] << 8) |
| + (drv_data->fifo_data[2]); |
| drv_data->accel_y = |
| (drv_data->fifo_data[3] << 8) |
| + (drv_data->fifo_data[4]); |
| drv_data->accel_z = |
| (drv_data->fifo_data[5] << 8) |
| + (drv_data->fifo_data[6]); |
| } |
| if (!(drv_data->fifo_data[0] & BIT_FIFO_HEAD_GYRO)) { |
| drv_data->temp = |
| (int16_t)(drv_data->fifo_data[7]); |
| } else { |
| if (!(drv_data->fifo_data[7] == |
| FIFO_GYRO0_RESET_VALUE && |
| drv_data->fifo_data[8] == |
| FIFO_GYRO1_RESET_VALUE)) { |
| drv_data->gyro_x = |
| (drv_data->fifo_data[7] << 8) |
| + (drv_data->fifo_data[8]); |
| drv_data->gyro_y = |
| (drv_data->fifo_data[9] << 8) |
| + (drv_data->fifo_data[10]); |
| drv_data->gyro_z = |
| (drv_data->fifo_data[11] << 8) |
| + (drv_data->fifo_data[12]); |
| } |
| drv_data->temp = |
| (int16_t)(drv_data->fifo_data[13]); |
| } |
| } else { |
| if (drv_data->fifo_data[0] & BIT_FIFO_HEAD_GYRO) { |
| if (!(drv_data->fifo_data[1] == |
| FIFO_GYRO0_RESET_VALUE && |
| drv_data->fifo_data[2] == |
| FIFO_GYRO1_RESET_VALUE)) { |
| drv_data->gyro_x = |
| (drv_data->fifo_data[1] << 8) |
| + (drv_data->fifo_data[2]); |
| drv_data->gyro_y = |
| (drv_data->fifo_data[3] << 8) |
| + (drv_data->fifo_data[4]); |
| drv_data->gyro_z = |
| (drv_data->fifo_data[5] << 8) |
| + (drv_data->fifo_data[6]); |
| } |
| drv_data->temp = |
| (int16_t)(drv_data->fifo_data[7]); |
| } |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int icm42605_attr_set(const struct device *dev, |
| enum sensor_channel chan, |
| enum sensor_attribute attr, |
| const struct sensor_value *val) |
| { |
| struct icm42605_data *drv_data = dev->data; |
| |
| __ASSERT_NO_MSG(val != NULL); |
| |
| switch (chan) { |
| case SENSOR_CHAN_ACCEL_X: |
| case SENSOR_CHAN_ACCEL_Y: |
| case SENSOR_CHAN_ACCEL_Z: |
| case SENSOR_CHAN_ACCEL_XYZ: |
| if (attr == SENSOR_ATTR_SAMPLING_FREQUENCY) { |
| if (val->val1 > 8000 || val->val1 < 1) { |
| LOG_ERR("Incorrect sampling value"); |
| return -EINVAL; |
| } else { |
| drv_data->accel_hz = val->val1; |
| } |
| } else if (attr == SENSOR_ATTR_FULL_SCALE) { |
| if (val->val1 < ACCEL_FS_16G || |
| val->val1 > ACCEL_FS_2G) { |
| LOG_ERR("Incorrect fullscale value"); |
| return -EINVAL; |
| } else { |
| drv_data->accel_sf = val->val1; |
| } |
| } else { |
| LOG_ERR("Not supported ATTR"); |
| return -ENOTSUP; |
| } |
| |
| break; |
| case SENSOR_CHAN_GYRO_X: |
| case SENSOR_CHAN_GYRO_Y: |
| case SENSOR_CHAN_GYRO_Z: |
| case SENSOR_CHAN_GYRO_XYZ: |
| if (attr == SENSOR_ATTR_SAMPLING_FREQUENCY) { |
| if (val->val1 > 8000 || val->val1 < 12) { |
| LOG_ERR("Incorrect sampling value"); |
| return -EINVAL; |
| } else { |
| drv_data->gyro_hz = val->val1; |
| } |
| } else if (attr == SENSOR_ATTR_FULL_SCALE) { |
| if (val->val1 < GYRO_FS_2000DPS || |
| val->val1 > GYRO_FS_15DPS) { |
| LOG_ERR("Incorrect fullscale value"); |
| return -EINVAL; |
| } else { |
| drv_data->gyro_sf = val->val1; |
| } |
| } else { |
| LOG_ERR("Not supported ATTR"); |
| return -EINVAL; |
| } |
| break; |
| default: |
| LOG_ERR("Not support"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int icm42605_attr_get(const struct device *dev, |
| enum sensor_channel chan, |
| enum sensor_attribute attr, |
| struct sensor_value *val) |
| { |
| const struct icm42605_data *drv_data = dev->data; |
| |
| __ASSERT_NO_MSG(val != NULL); |
| |
| switch (chan) { |
| case SENSOR_CHAN_ACCEL_X: |
| case SENSOR_CHAN_ACCEL_Y: |
| case SENSOR_CHAN_ACCEL_Z: |
| case SENSOR_CHAN_ACCEL_XYZ: |
| if (attr == SENSOR_ATTR_SAMPLING_FREQUENCY) { |
| val->val1 = drv_data->accel_hz; |
| } else if (attr == SENSOR_ATTR_FULL_SCALE) { |
| val->val1 = drv_data->accel_sf; |
| } else { |
| LOG_ERR("Not supported ATTR"); |
| return -EINVAL; |
| } |
| |
| break; |
| case SENSOR_CHAN_GYRO_X: |
| case SENSOR_CHAN_GYRO_Y: |
| case SENSOR_CHAN_GYRO_Z: |
| case SENSOR_CHAN_GYRO_XYZ: |
| if (attr == SENSOR_ATTR_SAMPLING_FREQUENCY) { |
| val->val1 = drv_data->gyro_hz; |
| } else if (attr == SENSOR_ATTR_FULL_SCALE) { |
| val->val1 = drv_data->gyro_sf; |
| } else { |
| LOG_ERR("Not supported ATTR"); |
| return -EINVAL; |
| } |
| |
| break; |
| |
| default: |
| LOG_ERR("Not support"); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static int icm42605_data_init(struct icm42605_data *data, |
| const struct icm42605_config *cfg) |
| { |
| data->accel_x = 0; |
| data->accel_y = 0; |
| data->accel_z = 0; |
| data->temp = 0; |
| data->gyro_x = 0; |
| data->gyro_y = 0; |
| data->gyro_z = 0; |
| data->accel_hz = cfg->accel_hz; |
| data->gyro_hz = cfg->gyro_hz; |
| |
| data->accel_sf = cfg->accel_fs; |
| data->gyro_sf = cfg->gyro_fs; |
| |
| data->tap_en = false; |
| data->sensor_started = false; |
| |
| return 0; |
| } |
| |
| |
| static int icm42605_init(const struct device *dev) |
| { |
| struct icm42605_data *drv_data = dev->data; |
| const struct icm42605_config *cfg = dev->config; |
| |
| if (!spi_is_ready(&cfg->spi)) { |
| LOG_ERR("SPI bus is not ready"); |
| return -ENODEV; |
| } |
| |
| icm42605_data_init(drv_data, cfg); |
| icm42605_sensor_init(dev); |
| |
| drv_data->accel_sensitivity_shift = 14 - 3; |
| drv_data->gyro_sensitivity_x10 = icm42605_gyro_sensitivity_x10[3]; |
| |
| #ifdef CONFIG_ICM42605_TRIGGER |
| if (icm42605_init_interrupt(dev) < 0) { |
| LOG_ERR("Failed to initialize interrupts."); |
| return -EIO; |
| } |
| #endif |
| |
| LOG_DBG("Initialize interrupt done"); |
| |
| return 0; |
| } |
| |
| static const struct sensor_driver_api icm42605_driver_api = { |
| #ifdef CONFIG_ICM42605_TRIGGER |
| .trigger_set = icm42605_trigger_set, |
| #endif |
| .sample_fetch = icm42605_sample_fetch, |
| .channel_get = icm42605_channel_get, |
| .attr_set = icm42605_attr_set, |
| .attr_get = icm42605_attr_get, |
| }; |
| |
| #define ICM42605_DEFINE_CONFIG(index) \ |
| static const struct icm42605_config icm42605_cfg_##index = { \ |
| .spi = SPI_DT_SPEC_INST_GET(index, \ |
| SPI_OP_MODE_MASTER | \ |
| SPI_MODE_CPOL | \ |
| SPI_MODE_CPHA | \ |
| SPI_WORD_SET(8) | \ |
| SPI_TRANSFER_MSB, \ |
| 0U), \ |
| .gpio_int = GPIO_DT_SPEC_INST_GET(index, int_gpios), \ |
| .accel_hz = DT_INST_PROP(index, accel_hz), \ |
| .gyro_hz = DT_INST_PROP(index, gyro_hz), \ |
| .accel_fs = DT_INST_ENUM_IDX(index, accel_fs), \ |
| .gyro_fs = DT_INST_ENUM_IDX(index, gyro_fs), \ |
| } |
| |
| #define ICM42605_INIT(index) \ |
| ICM42605_DEFINE_CONFIG(index); \ |
| static struct icm42605_data icm42605_driver_##index; \ |
| SENSOR_DEVICE_DT_INST_DEFINE(index, icm42605_init, \ |
| NULL, \ |
| &icm42605_driver_##index, \ |
| &icm42605_cfg_##index, POST_KERNEL, \ |
| CONFIG_SENSOR_INIT_PRIORITY, \ |
| &icm42605_driver_api); |
| |
| DT_INST_FOREACH_STATUS_OKAY(ICM42605_INIT) |