150 lines
4.5 KiB
C
150 lines
4.5 KiB
C
/*
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* Copyright (c) 2016, 2017 Intel Corporation
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* Copyright (c) 2017 IpTronix S.r.l.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __SENSOR_BME280_H__
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#define __SENSOR_BME280_H__
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#include <zephyr/types.h>
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#include <device.h>
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#define BME280_REG_PRESS_MSB 0xF7
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#define BME280_REG_COMP_START 0x88
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#define BME280_REG_HUM_COMP_PART1 0xA1
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#define BME280_REG_HUM_COMP_PART2 0xE1
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#define BME280_REG_ID 0xD0
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#define BME280_REG_CONFIG 0xF5
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#define BME280_REG_CTRL_MEAS 0xF4
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#define BME280_REG_CTRL_HUM 0xF2
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#define BMP280_CHIP_ID_SAMPLE_1 0x56
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#define BMP280_CHIP_ID_SAMPLE_2 0x57
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#define BMP280_CHIP_ID_MP 0x58
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#define BME280_CHIP_ID 0x60
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#define BME280_MODE_NORMAL 0x03
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#define BME280_SPI_3W_DISABLE 0x00
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#if defined CONFIG_BME280_TEMP_OVER_1X
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#define BME280_TEMP_OVER (1 << 5)
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#elif defined CONFIG_BME280_TEMP_OVER_2X
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#define BME280_TEMP_OVER (2 << 5)
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#elif defined CONFIG_BME280_TEMP_OVER_4X
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#define BME280_TEMP_OVER (3 << 5)
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#elif defined CONFIG_BME280_TEMP_OVER_8X
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#define BME280_TEMP_OVER (4 << 5)
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#elif defined CONFIG_BME280_TEMP_OVER_16X
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#define BME280_TEMP_OVER (5 << 5)
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#endif
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#if defined CONFIG_BME280_PRESS_OVER_1X
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#define BME280_PRESS_OVER (1 << 2)
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#elif defined CONFIG_BME280_PRESS_OVER_2X
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#define BME280_PRESS_OVER (2 << 2)
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#elif defined CONFIG_BME280_PRESS_OVER_4X
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#define BME280_PRESS_OVER (3 << 2)
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#elif defined CONFIG_BME280_PRESS_OVER_8X
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#define BME280_PRESS_OVER (4 << 2)
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#elif defined CONFIG_BME280_PRESS_OVER_16X
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#define BME280_PRESS_OVER (5 << 2)
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#endif
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#if defined CONFIG_BME280_HUMIDITY_OVER_1X
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#define BME280_HUMIDITY_OVER 1
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#elif defined CONFIG_BME280_HUMIDITY_OVER_2X
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#define BME280_HUMIDITY_OVER 2
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#elif defined CONFIG_BME280_HUMIDITY_OVER_4X
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#define BME280_HUMIDITY_OVER 3
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#elif defined CONFIG_BME280_HUMIDITY_OVER_8X
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#define BME280_HUMIDITY_OVER 4
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#elif defined CONFIG_BME280_HUMIDITY_OVER_16X
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#define BME280_HUMIDITY_OVER 5
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#endif
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#if defined CONFIG_BME280_STANDBY_05MS
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#define BME280_STANDBY 0
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#elif defined CONFIG_BME280_STANDBY_62MS
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#define BME280_STANDBY (1 << 5)
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#elif defined CONFIG_BME280_STANDBY_125MS
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#define BME280_STANDBY (2 << 5)
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#elif defined CONFIG_BME280_STANDBY_250MS
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#define BME280_STANDBY (3 << 5)
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#elif defined CONFIG_BME280_STANDBY_500MS
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#define BME280_STANDBY (4 << 5)
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#elif defined CONFIG_BME280_STANDBY_1000MS
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#define BME280_STANDBY (5 << 5)
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#elif defined CONFIG_BME280_STANDBY_2000MS
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#define BME280_STANDBY (6 << 5)
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#elif defined CONFIG_BME280_STANDBY_4000MS
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#define BME280_STANDBY (7 << 5)
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#endif
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#if defined CONFIG_BME280_FILTER_OFF
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#define BME280_FILTER 0
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#elif defined CONFIG_BME280_FILTER_2
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#define BME280_FILTER (1 << 2)
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#elif defined CONFIG_BME280_FILTER_4
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#define BME280_FILTER (2 << 2)
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#elif defined CONFIG_BME280_FILTER_8
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#define BME280_FILTER (3 << 2)
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#elif defined CONFIG_BME280_FILTER_16
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#define BME280_FILTER (4 << 2)
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#endif
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#define BME280_CTRL_MEAS_VAL (BME280_PRESS_OVER | \
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BME280_TEMP_OVER | \
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BME280_MODE_NORMAL)
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#define BME280_CONFIG_VAL (BME280_STANDBY | \
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BME280_FILTER | \
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BME280_SPI_3W_DISABLE)
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#define BME280_I2C_ADDR CONFIG_BME280_I2C_ADDR
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struct bme280_data {
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#ifdef CONFIG_BME280_DEV_TYPE_I2C
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struct device *i2c_master;
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u16_t i2c_slave_addr;
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#elif defined CONFIG_BME280_DEV_TYPE_SPI
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struct device *spi;
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int spi_slave;
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#else
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#error "BME280 device type not specified"
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#endif
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/* Compensation parameters. */
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u16_t dig_t1;
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s16_t dig_t2;
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s16_t dig_t3;
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u16_t dig_p1;
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s16_t dig_p2;
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s16_t dig_p3;
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s16_t dig_p4;
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s16_t dig_p5;
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s16_t dig_p6;
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s16_t dig_p7;
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s16_t dig_p8;
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s16_t dig_p9;
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u8_t dig_h1;
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s16_t dig_h2;
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u8_t dig_h3;
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s16_t dig_h4;
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s16_t dig_h5;
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s8_t dig_h6;
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/* Compensated values. */
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s32_t comp_temp;
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u32_t comp_press;
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u32_t comp_humidity;
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/* Carryover between temperature and pressure/humidity compensation. */
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s32_t t_fine;
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u8_t chip_id;
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};
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#define SYS_LOG_DOMAIN "BME280"
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#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
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#include <logging/sys_log.h>
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#endif /* __SENSOR_BME280_H__ */
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