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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | /* ST Microelectronics LIS2DW12 3-axis accelerometer driver * * Copyright (c) 2019 STMicroelectronics * * SPDX-License-Identifier: Apache-2.0 * * Datasheet: * https://www.st.com/resource/en/datasheet/lis2dw12.pdf */ #ifndef ZEPHYR_DRIVERS_SENSOR_LIS2DW12_LIS2DW12_H_ #define ZEPHYR_DRIVERS_SENSOR_LIS2DW12_LIS2DW12_H_ #include <zephyr/drivers/spi.h> #include <zephyr/drivers/gpio.h> #include <zephyr/sys/util.h> #include <zephyr/drivers/sensor.h> #include <stmemsc.h> #include "lis2dw12_reg.h" #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) #include <zephyr/drivers/spi.h> #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */ #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) #include <zephyr/drivers/i2c.h> #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */ /* Return ODR reg value based on data rate set */ #define LIS2DW12_ODR_TO_REG(_odr) \ ((_odr <= 1) ? LIS2DW12_XL_ODR_1Hz6_LP_ONLY : \ (_odr <= 12) ? LIS2DW12_XL_ODR_12Hz5 : \ ((31 - __builtin_clz(_odr / 25))) + 3) /* FS reg value from Full Scale */ #define LIS2DW12_FS_TO_REG(_fs) (30 - __builtin_clz(_fs)) /* Acc Gain value in ug/LSB in High Perf mode */ #define LIS2DW12_FS_2G_GAIN 244 #define LIS2DW12_FS_4G_GAIN 488 #define LIS2DW12_FS_8G_GAIN 976 #define LIS2DW12_FS_16G_GAIN 1952 #define LIS2DW12_SHFT_GAIN_NOLP1 2 #define LIS2DW12_ACCEL_GAIN_DEFAULT_VAL LIS2DW12_FS_2G_GAIN #define LIS2DW12_FS_TO_GAIN(_fs, _lp1) \ (LIS2DW12_FS_2G_GAIN << ((_fs) + (_lp1))) /* shift value for power mode */ #define LIS2DW12_SHIFT_PM1 4 #define LIS2DW12_SHIFT_PMOTHER 2 /** * struct lis2dw12_device_config - lis2dw12 hw configuration * @bus_name: Pointer to bus master identifier. * @pm: Power mode (lis2dh_powermode). * @int_pin: Sensor int pin (int1/int2). */ struct lis2dw12_device_config { stmdev_ctx_t ctx; union { #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) const struct i2c_dt_spec i2c; #endif #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) const struct spi_dt_spec spi; #endif } stmemsc_cfg; lis2dw12_mode_t pm; uint8_t range; uint8_t bw_filt; bool low_noise; bool hp_filter_path; bool hp_ref_mode; bool drdy_pulsed; #ifdef CONFIG_LIS2DW12_TRIGGER struct gpio_dt_spec gpio_int; uint8_t int_pin; #ifdef CONFIG_LIS2DW12_TAP uint8_t tap_mode; uint8_t tap_threshold[3]; uint8_t tap_shock; uint8_t tap_latency; uint8_t tap_quiet; #endif /* CONFIG_LIS2DW12_TAP */ #endif /* CONFIG_LIS2DW12_TRIGGER */ }; /* sensor data */ struct lis2dw12_data { int16_t acc[3]; /* save sensitivity */ uint16_t gain; #ifdef CONFIG_LIS2DW12_TRIGGER const struct device *dev; struct gpio_callback gpio_cb; sensor_trigger_handler_t drdy_handler; #ifdef CONFIG_LIS2DW12_TAP sensor_trigger_handler_t tap_handler; sensor_trigger_handler_t double_tap_handler; #endif /* CONFIG_LIS2DW12_TAP */ #ifdef CONFIG_LIS2DW12_THRESHOLD sensor_trigger_handler_t threshold_handler; #endif /* CONFIG_LIS2DW12_THRESHOLD */ #if defined(CONFIG_LIS2DW12_TRIGGER_OWN_THREAD) K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LIS2DW12_THREAD_STACK_SIZE); struct k_thread thread; struct k_sem gpio_sem; #elif defined(CONFIG_LIS2DW12_TRIGGER_GLOBAL_THREAD) struct k_work work; #endif /* CONFIG_LIS2DW12_TRIGGER_GLOBAL_THREAD */ #endif /* CONFIG_LIS2DW12_TRIGGER */ }; #ifdef CONFIG_LIS2DW12_TRIGGER int lis2dw12_init_interrupt(const struct device *dev); int lis2dw12_trigger_set(const struct device *dev, const struct sensor_trigger *trig, sensor_trigger_handler_t handler); #endif /* CONFIG_LIS2DW12_TRIGGER */ #endif /* ZEPHYR_DRIVERS_SENSOR_LIS2DW12_LIS2DW12_H_ */ |