| /* |
| * Copyright (c) 2020 Antmicro <www.antmicro.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef ZEPHYR_DRIVERS_SENSOR_ADX345_ADX345_H_ |
| #define ZEPHYR_DRIVERS_SENSOR_ADX345_ADX345_H_ |
| |
| #include <zephyr/types.h> |
| #include <zephyr/device.h> |
| #include <zephyr/drivers/gpio.h> |
| #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) |
| #include <zephyr/drivers/i2c.h> |
| #endif |
| #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) |
| #include <zephyr/drivers/spi.h> |
| #endif |
| #include <zephyr/sys/util.h> |
| |
| /* ADXL345 communication commands */ |
| #define ADXL345_WRITE_CMD 0x00 |
| #define ADXL345_READ_CMD 0x80 |
| #define ADXL345_MULTIBYTE_FLAG 0x40 |
| |
| /* Registers */ |
| #define ADXL345_DEVICE_ID_REG 0x00 |
| #define ADXL345_RATE_REG 0x2c |
| #define ADXL345_POWER_CTL_REG 0x2d |
| #define ADXL345_DATA_FORMAT_REG 0x31 |
| #define ADXL345_X_AXIS_DATA_0_REG 0x32 |
| #define ADXL345_FIFO_CTL_REG 0x38 |
| #define ADXL345_FIFO_STATUS_REG 0x39 |
| |
| #define ADXL345_PART_ID 0xe5 |
| |
| #define ADXL345_RANGE_2G 0x0 |
| #define ADXL345_RANGE_4G 0x1 |
| #define ADXL345_RANGE_8G 0x2 |
| #define ADXL345_RANGE_16G 0x3 |
| #define ADXL345_RATE_25HZ 0x8 |
| #define ADXL345_ENABLE_MEASURE_BIT (1 << 3) |
| #define ADXL345_FIFO_STREAM_MODE (1 << 7) |
| #define ADXL345_FIFO_COUNT_MASK 0x3f |
| #define ADXL345_COMPLEMENT 0xfc00 |
| |
| #define ADXL345_MAX_FIFO_SIZE 32 |
| |
| struct adxl345_dev_data { |
| unsigned int sample_number; |
| |
| int16_t bufx[ADXL345_MAX_FIFO_SIZE]; |
| int16_t bufy[ADXL345_MAX_FIFO_SIZE]; |
| int16_t bufz[ADXL345_MAX_FIFO_SIZE]; |
| }; |
| |
| struct adxl345_sample { |
| int16_t x; |
| int16_t y; |
| int16_t z; |
| }; |
| |
| union adxl345_bus { |
| #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) |
| struct i2c_dt_spec i2c; |
| #endif |
| #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) |
| struct spi_dt_spec spi; |
| #endif |
| }; |
| |
| typedef bool (*adxl345_bus_is_ready_fn)(const union adxl345_bus *bus); |
| typedef int (*adxl345_reg_access_fn)(const struct device *dev, uint8_t cmd, |
| uint8_t reg_addr, uint8_t *data, size_t length); |
| |
| struct adxl345_dev_config { |
| const union adxl345_bus bus; |
| adxl345_bus_is_ready_fn bus_is_ready; |
| adxl345_reg_access_fn reg_access; |
| }; |
| |
| #endif /* ZEPHYR_DRIVERS_SENSOR_ADX345_ADX345_H_ */ |