blob: 6a5d228f6e85ba9eb4888a41d5ee8c543b861448 [file] [log] [blame]
/*
* Copyright (c) 2016 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef __SENSOR_BME280_H__
#define __SENSOR_BME280_H__
#include <stdint.h>
#include <device.h>
#define BME280_REG_PRESS_MSB 0xF7
#define BME280_REG_COMP_START 0x88
#define BME280_REG_HUM_COMP_PART1 0xA1
#define BME280_REG_HUM_COMP_PART2 0xE1
#define BME280_REG_ID 0xD0
#define BME280_REG_CONFIG 0xF5
#define BME280_REG_CTRL_MEAS 0xF4
#define BME280_REG_CTRL_HUM 0xF2
#define BMP280_CHIP_ID_SAMPLE_1 0x56
#define BMP280_CHIP_ID_SAMPLE_2 0x57
#define BMP280_CHIP_ID_MP 0x58
#define BME280_CHIP_ID 0x60
#define BME280_MODE_NORMAL 0x03
#define BME280_SPI_3W_DISABLE 0x00
#if defined CONFIG_BME280_TEMP_OVER_1X
#define BME280_TEMP_OVER (1 << 5)
#elif defined CONFIG_BME280_TEMP_OVER_2X
#define BME280_TEMP_OVER (2 << 5)
#elif defined CONFIG_BME280_TEMP_OVER_4X
#define BME280_TEMP_OVER (3 << 5)
#elif defined CONFIG_BME280_TEMP_OVER_8X
#define BME280_TEMP_OVER (4 << 5)
#elif defined CONFIG_BME280_TEMP_OVER_16X
#define BME280_TEMP_OVER (5 << 5)
#endif
#if defined CONFIG_BME280_PRESS_OVER_1X
#define BME280_PRESS_OVER (1 << 2)
#elif defined CONFIG_BME280_PRESS_OVER_2X
#define BME280_PRESS_OVER (2 << 2)
#elif defined CONFIG_BME280_PRESS_OVER_4X
#define BME280_PRESS_OVER (3 << 2)
#elif defined CONFIG_BME280_PRESS_OVER_8X
#define BME280_PRESS_OVER (4 << 2)
#elif defined CONFIG_BME280_PRESS_OVER_16X
#define BME280_PRESS_OVER (5 << 2)
#endif
#if defined CONFIG_BME280_HUMIDITY_OVER_1X
#define BME280_HUMIDITY_OVER 1
#elif defined CONFIG_BME280_HUMIDITY_OVER_2X
#define BME280_HUMIDITY_OVER 2
#elif defined CONFIG_BME280_HUMIDITY_OVER_4X
#define BME280_HUMIDITY_OVER 3
#elif defined CONFIG_BME280_HUMIDITY_OVER_8X
#define BME280_HUMIDITY_OVER 4
#elif defined CONFIG_BME280_HUMIDITY_OVER_16X
#define BME280_HUMIDITY_OVER 5
#endif
#if defined CONFIG_BME280_STANDBY_05MS
#define BME280_STANDBY 0
#elif defined CONFIG_BME280_STANDBY_62MS
#define BME280_STANDBY (1 << 5)
#elif defined CONFIG_BME280_STANDBY_125MS
#define BME280_STANDBY (2 << 5)
#elif defined CONFIG_BME280_STANDBY_250MS
#define BME280_STANDBY (3 << 5)
#elif defined CONFIG_BME280_STANDBY_500MS
#define BME280_STANDBY (4 << 5)
#elif defined CONFIG_BME280_STANDBY_1000MS
#define BME280_STANDBY (5 << 5)
#elif defined CONFIG_BME280_STANDBY_2000MS
#define BME280_STANDBY (6 << 5)
#elif defined CONFIG_BME280_STANDBY_4000MS
#define BME280_STANDBY (7 << 5)
#endif
#if defined CONFIG_BME280_FILTER_OFF
#define BME280_FILTER 0
#elif defined CONFIG_BME280_FILTER_2
#define BME280_FILTER (1 << 2)
#elif defined CONFIG_BME280_FILTER_4
#define BME280_FILTER (2 << 2)
#elif defined CONFIG_BME280_FILTER_8
#define BME280_FILTER (3 << 2)
#elif defined CONFIG_BME280_FILTER_16
#define BME280_FILTER (4 << 2)
#endif
#define BME280_CTRL_MEAS_VAL (BME280_PRESS_OVER | \
BME280_TEMP_OVER | \
BME280_MODE_NORMAL)
#define BME280_CONFIG_VAL (BME280_STANDBY | \
BME280_FILTER | \
BME280_SPI_3W_DISABLE)
#define BME280_I2C_ADDR CONFIG_BME280_I2C_ADDR
struct bme280_data {
struct device *i2c_master;
uint16_t i2c_slave_addr;
/* Compensation parameters. */
uint16_t dig_t1;
int16_t dig_t2;
int16_t dig_t3;
uint16_t dig_p1;
int16_t dig_p2;
int16_t dig_p3;
int16_t dig_p4;
int16_t dig_p5;
int16_t dig_p6;
int16_t dig_p7;
int16_t dig_p8;
int16_t dig_p9;
uint8_t dig_h1;
int16_t dig_h2;
uint8_t dig_h3;
int16_t dig_h4;
int16_t dig_h5;
int8_t dig_h6;
/* Compensated values. */
int32_t comp_temp;
uint32_t comp_press;
uint32_t comp_humidity;
/* Carryover between temperature and pressure/humidity compensation. */
int32_t t_fine;
uint8_t chip_id;
};
#define SYS_LOG_DOMAIN "BME280"
#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
#include <logging/sys_log.h>
#endif /* __SENSOR_BME280_H__ */