159 lines
4.1 KiB
C
159 lines
4.1 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_BMA280_BMA280_H_
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#define ZEPHYR_DRIVERS_SENSOR_BMA280_BMA280_H_
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#include <device.h>
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#include <sys/util.h>
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#include <zephyr/types.h>
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#include <drivers/gpio.h>
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#define BMA280_I2C_ADDRESS DT_INST_REG_ADDR(0)
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#define BMA280_REG_CHIP_ID 0x00
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#if DT_INST_PROP(0, is_bmc150)
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#define BMA280_CHIP_ID 0xFA
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#else
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#define BMA280_CHIP_ID 0xFB
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#endif
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#define BMA280_REG_PMU_BW 0x10
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#if CONFIG_BMA280_PMU_BW_1
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#define BMA280_PMU_BW 0x08
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#elif CONFIG_BMA280_PMU_BW_2
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#define BMA280_PMU_BW 0x09
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#elif CONFIG_BMA280_PMU_BW_3
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#define BMA280_PMU_BW 0x0A
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#elif CONFIG_BMA280_PMU_BW_4
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#define BMA280_PMU_BW 0x0B
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#elif CONFIG_BMA280_PMU_BW_5
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#define BMA280_PMU_BW 0x0C
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#elif CONFIG_BMA280_PMU_BW_6
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#define BMA280_PMU_BW 0x0D
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#elif CONFIG_BMA280_PMU_BW_7
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#define BMA280_PMU_BW 0x0E
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#elif CONFIG_BMA280_PMU_BW_8
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#define BMA280_PMU_BW 0x0F
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#endif
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/*
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* BMA280_PMU_FULL_RANGE measured in mili-m/s^2 instead
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* of m/s^2 to avoid using struct sensor_value for it
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*/
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#define BMA280_REG_PMU_RANGE 0x0F
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#if CONFIG_BMA280_PMU_RANGE_2G
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#define BMA280_PMU_RANGE 0x03
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#define BMA280_PMU_FULL_RANGE (4 * SENSOR_G)
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#elif CONFIG_BMA280_PMU_RANGE_4G
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#define BMA280_PMU_RANGE 0x05
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#define BMA280_PMU_FULL_RANGE (8 * SENSOR_G)
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#elif CONFIG_BMA280_PMU_RANGE_8G
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#define BMA280_PMU_RANGE 0x08
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#define BMA280_PMU_FULL_RANGE (16 * SENSOR_G)
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#elif CONFIG_BMA280_PMU_RANGE_16G
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#define BMA280_PMU_RANGE 0x0C
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#define BMA280_PMU_FULL_RANGE (32 * SENSOR_G)
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#endif
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#define BMA280_REG_TEMP 0x08
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#define BMA280_REG_INT_STATUS_0 0x09
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#define BMA280_BIT_SLOPE_INT_STATUS BIT(2)
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#define BMA280_REG_INT_STATUS_1 0x0A
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#define BMA280_BIT_DATA_INT_STATUS BIT(7)
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#define BMA280_REG_INT_EN_0 0x16
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#define BMA280_BIT_SLOPE_EN_X BIT(0)
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#define BMA280_BIT_SLOPE_EN_Y BIT(1)
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#define BMA280_BIT_SLOPE_EN_Z BIT(2)
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#define BMA280_SLOPE_EN_XYZ (BMA280_BIT_SLOPE_EN_X | \
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BMA280_BIT_SLOPE_EN_Y | BMA280_BIT_SLOPE_EN_X)
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#define BMA280_REG_INT_EN_1 0x17
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#define BMA280_BIT_DATA_EN BIT(4)
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#define BMA280_REG_INT_MAP_0 0x19
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#define BMA280_INT_MAP_0_BIT_SLOPE BIT(2)
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#define BMA280_REG_INT_MAP_1 0x1A
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#define BMA280_INT_MAP_1_BIT_DATA BIT(0)
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#define BMA280_REG_INT_RST_LATCH 0x21
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#define BMA280_INT_MODE_LATCH 0x0F
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#define BMA280_BIT_INT_LATCH_RESET BIT(7)
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#define BMA280_REG_INT_5 0x27
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#define BMA280_SLOPE_DUR_SHIFT 0
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#define BMA280_SLOPE_DUR_MASK (3 << BMA280_SLOPE_DUR_SHIFT)
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#define BMA280_REG_SLOPE_TH 0x28
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#define BMA280_REG_ACCEL_X_LSB 0x2
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#define BMA280_REG_ACCEL_Y_LSB 0x4
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#define BMA280_REG_ACCEL_Z_LSB 0x6
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#if DT_INST_PROP(0, is_bmc150)
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#define BMA280_ACCEL_LSB_BITS 4
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#define BMA280_ACCEL_LSB_SHIFT 4
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#else
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#define BMA280_ACCEL_LSB_BITS 6
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#define BMA280_ACCEL_LSB_SHIFT 2
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#endif
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#define BMA280_ACCEL_LSB_MASK \
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(BIT_MASK(BMA280_ACCEL_LSB_BITS) << BMA280_ACCEL_LSB_SHIFT)
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#define BMA280_REG_ACCEL_X_MSB 0x3
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#define BMA280_REG_ACCEL_Y_MSB 0x5
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#define BMA280_REG_ACCEL_Z_MSB 0x7
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#define BMA280_THREAD_PRIORITY 10
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#define BMA280_THREAD_STACKSIZE_UNIT 1024
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struct bma280_data {
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const struct device *i2c;
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int16_t x_sample;
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int16_t y_sample;
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int16_t z_sample;
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int8_t temp_sample;
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#ifdef CONFIG_BMA280_TRIGGER
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const struct device *dev;
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const struct device *gpio;
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struct gpio_callback gpio_cb;
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struct sensor_trigger data_ready_trigger;
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sensor_trigger_handler_t data_ready_handler;
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struct sensor_trigger any_motion_trigger;
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sensor_trigger_handler_t any_motion_handler;
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#if defined(CONFIG_BMA280_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_BMA280_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem gpio_sem;
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#elif defined(CONFIG_BMA280_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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#endif
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#endif /* CONFIG_BMA280_TRIGGER */
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};
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#ifdef CONFIG_BMA280_TRIGGER
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int bma280_trigger_set(const struct device *dev,
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const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler);
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int bma280_attr_set(const struct device *dev,
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enum sensor_channel chan,
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enum sensor_attribute attr,
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const struct sensor_value *val);
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int bma280_init_interrupt(const struct device *dev);
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#endif
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#endif /* ZEPHYR_DRIVERS_SENSOR_BMA280_BMA280_H_ */
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