1f05d03489
- Similar to LPF settings decimation rate could be applied to per instance basis, thus moved to DT prop Signed-off-by: Anuj Pathak <anuj@croxel.com>
106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
/*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Copyright (c) 2023 Linumiz
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_MC3419_H_
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#define ZEPHYR_DRIVERS_SENSOR_MC3419_H_
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#include <zephyr/drivers/gpio.h>
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#include <zephyr/drivers/i2c.h>
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#include <zephyr/drivers/sensor.h>
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#include <zephyr/kernel.h>
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#include <zephyr/sys/util.h>
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/* Registers */
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#define MC3419_REG_INT_CTRL 0x06
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#define MC3419_REG_OP_MODE 0x07
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#define MC3419_REG_SAMPLE_RATE 0x08
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#define MC3419_REG_MOTION_CTRL 0x09
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#define MC3419_REG_XOUT_L 0x0D
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#define MC3419_REG_YOUT_L 0x0F
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#define MC3419_REG_ZOUT_L 0x11
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#define MC3419_REG_STATUS 0x13
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#define MC3419_REG_INT_STATUS 0x14
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#define MC3419_REG_RANGE_SELECT_CTRL 0x20
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#define MC3419_REG_SAMPLE_RATE_2 0x30
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#define MC3419_REG_COMM_CTRL 0x31
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#define MC3419_REG_ANY_MOTION_THRES 0x43
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#define MC3419_RANGE_MASK GENMASK(6, 4)
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#define MC3419_LPF_MASK GENMASK(3, 0)
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#define MC3419_DATA_READY_MASK BIT(7)
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#define MC3419_ANY_MOTION_MASK BIT(2)
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#define MC3419_INT_CLEAR 0x00
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#define MC3419_INT_ROUTE 0x10
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#define MC3419_ANY_MOTION_THRESH_MAX 0x7FFF
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#define MC3419_SAMPLE_SIZE 3
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#define MC3419_SAMPLE_READ_SIZE (MC3419_SAMPLE_SIZE * (sizeof(int16_t)))
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#define SENSOR_GRAIN_VALUE (61LL / 1000.0)
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#define SENSOR_GRAVITY_DOUBLE (SENSOR_G / 1000000.0)
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#define MC3419_BASE_ODR_VAL 0x10
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#define MC3419_TRIG_DATA_READY 0
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#define MC3419_TRIG_ANY_MOTION 1
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#define MC3419_TRIG_SIZE 2
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enum mc3419_op_mode {
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MC3419_MODE_STANDBY = 0x00,
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MC3419_MODE_WAKE = 0x01
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};
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struct mc3419_odr_map {
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int16_t freq;
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int16_t mfreq;
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};
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enum mc3419_accl_range {
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MC3419_ACCl_RANGE_2G,
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MC3419_ACCl_RANGE_4G,
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MC3419_ACCl_RANGE_8G,
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MC3419_ACCl_RANGE_16G,
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MC3419_ACCl_RANGE_12G,
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MC3419_ACCL_RANGE_END
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};
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struct mc3419_config {
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struct i2c_dt_spec i2c;
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#if defined(CONFIG_MC3419_TRIGGER)
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struct gpio_dt_spec int_gpio;
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bool int_cfg;
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#endif
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uint8_t lpf_fc_sel;
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uint8_t decimation_rate;
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};
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struct mc3419_driver_data {
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double sensitivity;
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struct k_sem sem;
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int16_t samples[MC3419_SAMPLE_SIZE];
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#if defined(CONFIG_MC3419_TRIGGER)
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const struct device *gpio_dev;
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struct gpio_callback gpio_cb;
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sensor_trigger_handler_t handler[MC3419_TRIG_SIZE];
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const struct sensor_trigger *trigger[MC3419_TRIG_SIZE];
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#if defined(CONFIG_MC3419_TRIGGER_OWN_THREAD)
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K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_MC3419_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem trig_sem;
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#else
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struct k_work work;
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#endif
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#endif
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};
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#if defined(CONFIG_MC3419_TRIGGER)
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int mc3419_trigger_init(const struct device *dev);
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int mc3419_configure_trigger(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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#endif
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#endif
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