1 /* 2 * Copyright (c) 2016 Intel Corporation 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_DRIVERS_SENSOR_BMA280_BMA280_H_ 8 #define ZEPHYR_DRIVERS_SENSOR_BMA280_BMA280_H_ 9 10 #include <zephyr/device.h> 11 #include <zephyr/sys/util.h> 12 #include <zephyr/types.h> 13 #include <zephyr/drivers/i2c.h> 14 #include <zephyr/drivers/gpio.h> 15 #include <zephyr/kernel.h> 16 17 #define BMA280_REG_CHIP_ID 0x00 18 #if DT_INST_PROP(0, is_bmc150) 19 #define BMA280_CHIP_ID 0xFA 20 #else 21 #define BMA280_CHIP_ID 0xFB 22 #endif 23 24 #define BMA280_REG_PMU_BW 0x10 25 #if CONFIG_BMA280_PMU_BW_1 26 #define BMA280_PMU_BW 0x08 27 #elif CONFIG_BMA280_PMU_BW_2 28 #define BMA280_PMU_BW 0x09 29 #elif CONFIG_BMA280_PMU_BW_3 30 #define BMA280_PMU_BW 0x0A 31 #elif CONFIG_BMA280_PMU_BW_4 32 #define BMA280_PMU_BW 0x0B 33 #elif CONFIG_BMA280_PMU_BW_5 34 #define BMA280_PMU_BW 0x0C 35 #elif CONFIG_BMA280_PMU_BW_6 36 #define BMA280_PMU_BW 0x0D 37 #elif CONFIG_BMA280_PMU_BW_7 38 #define BMA280_PMU_BW 0x0E 39 #elif CONFIG_BMA280_PMU_BW_8 40 #define BMA280_PMU_BW 0x0F 41 #endif 42 43 /* 44 * BMA280_PMU_FULL_RANGE measured in milli-m/s^2 instead 45 * of m/s^2 to avoid using struct sensor_value for it 46 */ 47 #define BMA280_REG_PMU_RANGE 0x0F 48 #if CONFIG_BMA280_PMU_RANGE_2G 49 #define BMA280_PMU_RANGE 0x03 50 #define BMA280_PMU_FULL_RANGE (4 * SENSOR_G) 51 #elif CONFIG_BMA280_PMU_RANGE_4G 52 #define BMA280_PMU_RANGE 0x05 53 #define BMA280_PMU_FULL_RANGE (8 * SENSOR_G) 54 #elif CONFIG_BMA280_PMU_RANGE_8G 55 #define BMA280_PMU_RANGE 0x08 56 #define BMA280_PMU_FULL_RANGE (16 * SENSOR_G) 57 #elif CONFIG_BMA280_PMU_RANGE_16G 58 #define BMA280_PMU_RANGE 0x0C 59 #define BMA280_PMU_FULL_RANGE (32 * SENSOR_G) 60 #endif 61 62 #define BMA280_REG_TEMP 0x08 63 64 #define BMA280_REG_INT_STATUS_0 0x09 65 #define BMA280_BIT_SLOPE_INT_STATUS BIT(2) 66 #define BMA280_REG_INT_STATUS_1 0x0A 67 #define BMA280_BIT_DATA_INT_STATUS BIT(7) 68 69 #define BMA280_REG_INT_EN_0 0x16 70 #define BMA280_BIT_SLOPE_EN_X BIT(0) 71 #define BMA280_BIT_SLOPE_EN_Y BIT(1) 72 #define BMA280_BIT_SLOPE_EN_Z BIT(2) 73 #define BMA280_SLOPE_EN_XYZ (BMA280_BIT_SLOPE_EN_X | \ 74 BMA280_BIT_SLOPE_EN_Y | BMA280_BIT_SLOPE_EN_X) 75 76 #define BMA280_REG_INT_EN_1 0x17 77 #define BMA280_BIT_DATA_EN BIT(4) 78 79 #define BMA280_REG_INT_MAP_0 0x19 80 #define BMA280_INT_MAP_0_BIT_SLOPE BIT(2) 81 82 #define BMA280_REG_INT_MAP_1 0x1A 83 #define BMA280_INT_MAP_1_BIT_DATA BIT(0) 84 85 #define BMA280_REG_INT_RST_LATCH 0x21 86 #define BMA280_INT_MODE_LATCH 0x0F 87 #define BMA280_BIT_INT_LATCH_RESET BIT(7) 88 89 #define BMA280_REG_INT_5 0x27 90 #define BMA280_SLOPE_DUR_SHIFT 0 91 #define BMA280_SLOPE_DUR_MASK (3 << BMA280_SLOPE_DUR_SHIFT) 92 93 #define BMA280_REG_SLOPE_TH 0x28 94 95 #define BMA280_REG_ACCEL_X_LSB 0x2 96 #define BMA280_REG_ACCEL_Y_LSB 0x4 97 #define BMA280_REG_ACCEL_Z_LSB 0x6 98 99 #if DT_INST_PROP(0, is_bmc150) 100 #define BMA280_ACCEL_LSB_BITS 4 101 #define BMA280_ACCEL_LSB_SHIFT 4 102 #else 103 #define BMA280_ACCEL_LSB_BITS 6 104 #define BMA280_ACCEL_LSB_SHIFT 2 105 #endif 106 #define BMA280_ACCEL_LSB_MASK \ 107 (BIT_MASK(BMA280_ACCEL_LSB_BITS) << BMA280_ACCEL_LSB_SHIFT) 108 109 #define BMA280_REG_ACCEL_X_MSB 0x3 110 #define BMA280_REG_ACCEL_Y_MSB 0x5 111 #define BMA280_REG_ACCEL_Z_MSB 0x7 112 113 #define BMA280_THREAD_PRIORITY 10 114 #define BMA280_THREAD_STACKSIZE_UNIT 1024 115 116 struct bma280_data { 117 int16_t x_sample; 118 int16_t y_sample; 119 int16_t z_sample; 120 int8_t temp_sample; 121 122 #ifdef CONFIG_BMA280_TRIGGER 123 const struct device *dev; 124 struct gpio_callback gpio_cb; 125 126 const struct sensor_trigger *data_ready_trigger; 127 sensor_trigger_handler_t data_ready_handler; 128 129 const struct sensor_trigger *any_motion_trigger; 130 sensor_trigger_handler_t any_motion_handler; 131 132 #if defined(CONFIG_BMA280_TRIGGER_OWN_THREAD) 133 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_BMA280_THREAD_STACK_SIZE); 134 struct k_thread thread; 135 struct k_sem gpio_sem; 136 #elif defined(CONFIG_BMA280_TRIGGER_GLOBAL_THREAD) 137 struct k_work work; 138 #endif 139 140 #endif /* CONFIG_BMA280_TRIGGER */ 141 }; 142 143 struct bma280_config { 144 struct i2c_dt_spec i2c; 145 #ifdef CONFIG_BMA280_TRIGGER 146 struct gpio_dt_spec int1_gpio; 147 #endif 148 }; 149 150 #ifdef CONFIG_BMA280_TRIGGER 151 int bma280_trigger_set(const struct device *dev, 152 const struct sensor_trigger *trig, 153 sensor_trigger_handler_t handler); 154 155 int bma280_attr_set(const struct device *dev, 156 enum sensor_channel chan, 157 enum sensor_attribute attr, 158 const struct sensor_value *val); 159 160 int bma280_init_interrupt(const struct device *dev); 161 #endif 162 163 #endif /* ZEPHYR_DRIVERS_SENSOR_BMA280_BMA280_H_ */ 164
