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15d91d4797
Signed-off-by: Henry Bruce <henry.bruce@intel.com> Signed-off-by: Abhishek Malik <abhishek.malik@intel.com>
153 lines
3.5 KiB
C++
153 lines
3.5 KiB
C++
#include <mraa/i2c.hpp>
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#include "upm/iPressureSensor.h"
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#include "upm/iTemperatureSensor.h"
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#include "upm/iHumiditySensor.h"
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#ifndef __BME280_H__
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#define __BME280_H__
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//#define BME280_MDELAY_DATA_TYPE uint32_t
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/****************************************************/
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/**\name I2C ADDRESS DEFINITIONS */
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/***************************************************/
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#define BME280_I2C_ADDRESS1 (0x76)
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#define BME280_I2C_ADDRESS2 (0x77)
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#define BME280_ONE_U8X (1)
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namespace upm {
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class BME280 : public ITemperatureSensor, public IHumiditySensor, public IPressureSensor {
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public:
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/**
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* Instanciates a BME280 object
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*
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* @param bus number of used bus
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* @param devAddr address of used i2c device
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* @param mode BME280 mode
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*/
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BME280();
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//BME280 (int bus, int devAddr= 0x77 , uint8_t mode = 0x03 );
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BME280 (int bus, int devAddr = BME280_I2C_ADDRESS1);
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/**
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* BME280 object destructor, basicaly it close i2c connection.
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*/
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~BME280 ();
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/**
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* Get temperature measurement.
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*/
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uint16_t getTemperatureRaw ();
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/**
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* Get temperature measurement.
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*/
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int getTemperatureCelcius ();
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/**
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* Get relative humidity measurement.
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*/
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uint16_t getHumidityRaw ();
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/**
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* Get relative humidity measurement.
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*/
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int getHumidityRelative ();
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/**
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* Returns sensor module name
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*/
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const char* getModuleName() { return "BME280"; }
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/**
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* Return pressure
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*/
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uint32_t getPressureRaw();
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/**
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* Return calculated pressure (Pa)
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*/
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int getPressurePa();
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/**
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* Return temperature
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*/
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int32_t getTemperatureInternal(void);
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/**
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* Return pressure
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*/
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int32_t getPressureInternal(void);
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/**
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* Return humidity
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*/
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int32_t getHumidityInternal(void);
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/**
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* Return temperature
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*/
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int32_t getTemperatureRawInternal(void);
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/**
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* Return pressure
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*/
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int32_t getPressureRawInternal(void);
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/**
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* Return humidity
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*/
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int32_t getHumidityRawInternal(void);
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//int32_t getTemperatureRaw(void);
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/**
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* Returns whether the sensor is configured.
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*/
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bool isConfigured();
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/**
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* Returns whether the correct chip is present at the given address.
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*/
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bool isAvailable();
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private:
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/**************************************************************/
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/**\name STRUCTURE DEFINITIONS */
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/**************************************************************/
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/*!
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* @brief This structure holds all device specific calibration parameters
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*/
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static mraa::I2c* m_i2c;
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static int m_bus;
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static int32_t i2c_write_string(uint8_t dev_addr,uint8_t* ptr, uint8_t cnt);
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static int32_t i2c_write_read_string(uint8_t dev_addr,uint8_t reg_addr , uint8_t * ptr, uint8_t cnt);
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static int8_t I2C_routine();
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static int8_t BME280_I2C_bus_write(uint8_t dev_addr, uint8_t reg_addr, uint8_t *reg_data, uint8_t cnt);
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static void BME280_delay_msek(uint16_t msek);
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static int8_t BME280_I2C_bus_read(uint8_t dev_addr, uint8_t reg_addr, uint8_t *reg_data, uint8_t cnt);
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};
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}
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#endif
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