| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __SENSOR_BMA280_H__ |
| #define __SENSOR_BMA280_H__ |
| |
| #include <device.h> |
| #include <misc/util.h> |
| #include <stdint.h> |
| |
| #ifndef CONFIG_SENSOR_DEBUG |
| #define DBG(...) { ; } |
| #else |
| #include <misc/printk.h> |
| #define DBG printk |
| #endif /* CONFIG_SENSOR_DEBUG */ |
| |
| #if CONFIG_BMA280_I2C_ADDR_0x18 |
| #define BMA280_I2C_ADDRESS 0x18 |
| #elif CONFIG_BMA280_I2C_ADDR_0x19 |
| #define BMA280_I2C_ADDRESS 0x19 |
| #endif |
| |
| #define BMA280_REG_CHIP_ID 0x00 |
| #define BMA280_CHIP_ID 0xFB |
| |
| #define BMA280_REG_PMU_BW 0x10 |
| #if CONFIG_BMA280_PMU_BW_1 |
| #define BMA280_PMU_BW 0x08 |
| #elif CONFIG_BMA280_PMU_BW_2 |
| #define BMA280_PMU_BW 0x09 |
| #elif CONFIG_BMA280_PMU_BW_3 |
| #define BMA280_PMU_BW 0x0A |
| #elif CONFIG_BMA280_PMU_BW_4 |
| #define BMA280_PMU_BW 0x0B |
| #elif CONFIG_BMA280_PMU_BW_5 |
| #define BMA280_PMU_BW 0x0C |
| #elif CONFIG_BMA280_PMU_BW_6 |
| #define BMA280_PMU_BW 0x0D |
| #elif CONFIG_BMA280_PMU_BW_7 |
| #define BMA280_PMU_BW 0x0E |
| #elif CONFIG_BMA280_PMU_BW_8 |
| #define BMA280_PMU_BW 0x0F |
| #endif |
| |
| /* |
| * accel and slope scale measured in nano-m/s^2 instead |
| * of m/s^2 to avoid using struct sensor_value for it |
| */ |
| #define GRAVITY_CONST 9807 |
| #define BMA280_REG_PMU_RANGE 0x0F |
| #if CONFIG_BMA280_PMU_RANGE_2G |
| #define BMA280_PMU_RANGE 0x03 |
| #define BMA280_ACCEL_SCALE (244 * GRAVITY_CONST) |
| #define BMA280_SLOPE_TH_SCALE 3910 |
| #elif CONFIG_BMA280_PMU_RANGE_4G |
| #define BMA280_PMU_RANGE 0x05 |
| #define BMA280_ACCEL_SCALE (488 * GRAVITY_CONST) |
| #define BMA280_SLOPE_TH_SCALE 7810 |
| #elif CONFIG_BMA280_PMU_RANGE_8G |
| #define BMA280_PMU_RANGE 0x08 |
| #define BMA280_ACCEL_SCALE (977 * GRAVITY_CONST) |
| #define BMA280_SLOPE_TH_SCALE 15630 |
| #elif CONFIG_BMA280_PMU_RANGE_16G |
| #define BMA280_PMU_RANGE 0x0C |
| #define BMA280_ACCEL_SCALE (1953 * GRAVITY_CONST) |
| #define BMA280_SLOPE_TH_SCALE 31250 |
| #endif |
| |
| #define BMA280_REG_TEMP 0x08 |
| |
| #define BMA280_REG_INT_STATUS_0 0x09 |
| #define BMA280_BIT_SLOPE_INT_STATUS BIT(2) |
| #define BMA280_REG_INT_STATUS_1 0x0A |
| #define BMA280_BIT_DATA_INT_STATUS BIT(7) |
| |
| #define BMA280_REG_INT_EN_0 0x16 |
| #define BMA280_BIT_SLOPE_EN_X BIT(0) |
| #define BMA280_BIT_SLOPE_EN_Y BIT(1) |
| #define BMA280_BIT_SLOPE_EN_Z BIT(2) |
| #define BMA280_SLOPE_EN_XYZ (BMA280_BIT_SLOPE_EN_X | \ |
| BMA280_BIT_SLOPE_EN_Y | BMA280_BIT_SLOPE_EN_X) |
| |
| #define BMA280_REG_INT_EN_1 0x17 |
| #define BMA280_BIT_DATA_EN BIT(4) |
| |
| #define BMA280_REG_INT_MAP_0 0x19 |
| #define BMA280_INT_MAP_0_BIT_SLOPE BIT(2) |
| |
| #define BMA280_REG_INT_MAP_1 0x1A |
| #define BMA280_INT_MAP_1_BIT_DATA BIT(0) |
| |
| #define BMA280_REG_INT_RST_LATCH 0x21 |
| #define BMA280_INT_MODE_LATCH 0x0F |
| #define BMA280_BIT_INT_LATCH_RESET BIT(7) |
| |
| #define BMA280_REG_INT_5 0x27 |
| #define BMA280_SLOPE_DUR_SHIFT 0 |
| #define BMA280_SLOPE_DUR_MASK (3 << BMA280_SLOPE_DUR_SHIFT) |
| |
| #define BMA280_REG_SLOPE_TH 0x28 |
| |
| #define BMA280_REG_ACCEL_X_LSB 0x2 |
| #define BMA280_REG_ACCEL_Y_LSB 0x4 |
| #define BMA280_REG_ACCEL_Z_LSB 0x6 |
| #define BMA280_ACCEL_LSB_BITS 6 |
| #define BMA280_ACCEL_LSB_SHIFT 2 |
| #define BMA280_ACCEL_LSB_MASK (0x3F << BMA280_ACCEL_LSB_SHIFT) |
| #define BMA280_REG_ACCEL_X_MSB 0x3 |
| #define BMA280_REG_ACCEL_Y_MSB 0x5 |
| #define BMA280_REG_ACCEL_Z_MSB 0x7 |
| |
| #define BMA280_FIBER_PRIORITY 10 |
| #define BMA280_FIBER_STACKSIZE_UNIT 1024 |
| |
| struct bma280_data { |
| struct device *i2c; |
| int16_t x_sample; |
| int16_t y_sample; |
| int16_t z_sample; |
| int8_t temp_sample; |
| |
| #ifdef CONFIG_BMA280_TRIGGER |
| struct device *gpio; |
| |
| struct sensor_trigger data_ready_trigger; |
| sensor_trigger_handler_t data_ready_handler; |
| |
| struct sensor_trigger any_motion_trigger; |
| sensor_trigger_handler_t any_motion_handler; |
| |
| #if defined(CONFIG_BMA280_TRIGGER_OWN_FIBER) |
| char __stack fiber_stack[CONFIG_BMA280_FIBER_STACK_SIZE]; |
| struct nano_sem gpio_sem; |
| #elif defined(CONFIG_BMA280_TRIGGER_GLOBAL_FIBER) |
| struct sensor_work work; |
| #endif |
| |
| #endif /* CONFIG_BMA280_TRIGGER */ |
| }; |
| |
| #ifdef CONFIG_BMA280_TRIGGER |
| int bma280_reg_write(struct bma280_data *drv_data, |
| uint8_t reg, uint8_t val); |
| |
| int bma280_reg_read(struct bma280_data *drv_data, |
| uint8_t reg, uint8_t *val); |
| |
| int bma280_reg_update(struct bma280_data *drv_data, |
| uint8_t reg, uint8_t mask, uint8_t val); |
| |
| int bma280_trigger_set(struct device *dev, |
| const struct sensor_trigger *trig, |
| sensor_trigger_handler_t handler); |
| |
| int bma280_attr_set(struct device *dev, |
| enum sensor_channel chan, |
| enum sensor_attribute attr, |
| const struct sensor_value *val); |
| |
| int bma280_init_interrupt(struct device *dev); |
| #endif |
| |
| #endif /* __SENSOR_BMA280_H__ */ |