f9bd2588a2
fix Security breach found by Tencent Blade Team please refer to security advisory - CVE-2020-11068
168 lines
5.6 KiB
C
168 lines
5.6 KiB
C
/*!
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* \file mpl3115.h
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*
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* \brief MPL3115 Temperature, pressure and altitude sensor driver implementation
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*
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* \copyright Revised BSD License, see section \ref LICENSE.
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*
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* \code
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* ______ _
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* / _____) _ | |
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* ( (____ _____ ____ _| |_ _____ ____| |__
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* \____ \| ___ | (_ _) ___ |/ ___) _ \
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* _____) ) ____| | | || |_| ____( (___| | | |
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* (______/|_____)_|_|_| \__)_____)\____)_| |_|
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* (C)2013-2017 Semtech
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*
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* \endcode
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*
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* \author Miguel Luis ( Semtech )
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*
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* \author Gregory Cristian ( Semtech )
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*/
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#ifndef __MPL3115_H__
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#define __MPL3115_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <stdint.h>
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/*
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* MPL3115A2 I2C address
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*/
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#define MPL3115A_I2C_ADDRESS 0x60
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/*
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* MPL3115A2 Registers
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*/
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#define STATUS_REG 0x00 // STATUS Register
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#define OUT_P_MSB_REG 0x01 // Bits 12-19 of 20-bit real-time Pressure sample
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#define OUT_P_CSB_REG 0x02 // Bits 4-11 of 20-bit real-time Pressure sample
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#define OUT_P_LSB_REG 0x03 // Bits 0-3 of 20-bit real-time Pressure sample
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#define OUT_T_MSB_REG 0x04 // Bits 4-11 of 12-bit real-time Temperature sample
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#define OUT_T_LSB_REG 0x05 // Bits 0-3 of 12-bit real-time Temperature sample
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#define DR_STATUS 0x06 // Data Ready status information
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#define OUT_P_DELTA_MSB_REG 0x07 // Bits 12-19 of 20-bit Pressure change data
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#define OUT_P_DELTA_CSB_REG 0x08 // Bits 4-11 of 20-bit Pressure change data
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#define OUT_P_DELTA_LSB_REG 0x09 // Bits 0-3 of 20-bit Pressure change data
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#define OUT_T_DELTA_MSB_REG 0x0A // Bits 4-11 of 12-bit Temperature change data
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#define OUT_T_DELTA_LSB_REG 0x0B // Bits 0-3 of 12-bit Temperature change data
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#define MPL3115_ID 0x0C // Fixed Device ID Number = 0xC4
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#define F_STATUS_REG 0x0D // FIFO Status
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#define F_DATA_REG 0x0E // FIFO 8-bit data access
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#define F_SETUP_REG 0x0F // FIFO setup
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#define TIME_DLY_REG 0x10 // Time since FIFO overflow
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#define SYSMOD_REG 0x11 // Current system mode
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#define INT_SOURCE_REG 0x12 // Interrupt status
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#define PT_DATA_CFG_REG 0x13 // Data event flag configuration
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#define BAR_IN_MSB_REG 0x14 // Barometric input for Altitude calculation bits 8-15
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#define BAR_IN_LSB_REG 0x15 // Barometric input for Altitude calculation bits 0-7
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#define P_TGT_MSB_REG 0x16 // Pressure/Altitude target value bits 8-15
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#define P_TGT_LSB_REG 0x17 // Pressure/Altitude target value bits 0-7
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#define T_TGT_REG 0x18 // Temperature target value
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#define P_WND_MSB_REG 0x19 // Pressure/Altitude window value bits 8-15
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#define P_WND_LSB_REG 0x1A // Pressure/Altitude window value bits 0-7
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#define T_WND_REG 0x1B // Temperature window value
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#define P_MIN_MSB_REG 0x1C // Minimum Pressure/Altitude bits 12-19
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#define P_MIN_CSB_REG 0x1D // Minimum Pressure/Altitude bits 4-11
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#define P_MIN_LSB_REG 0x1E // Minimum Pressure/Altitude bits 0-3
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#define T_MIN_MSB_REG 0x1F // Minimum Temperature bits 8-15
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#define T_MIN_LSB_REG 0x20 // Minimum Temperature bits 0-7
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#define P_MAX_MSB_REG 0x21 // Maximum Pressure/Altitude bits 12-19
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#define P_MAX_CSB_REG 0x22 // Maximum Pressure/Altitude bits 4-11
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#define P_MAX_LSB_REG 0x23 // Maximum Pressure/Altitude bits 0-3
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#define T_MAX_MSB_REG 0x24 // Maximum Pressure/Altitude bits 8-15
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#define T_MAX_LSB_REG 0x25 // Maximum Pressure/Altitude bits 0-7
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#define CTRL_REG1 0x26 // CTRL_REG1 System Control 1 Register
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#define CTRL_REG2 0x27 // CTRL_REG2 System Control 2 Register
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#define CTRL_REG3 0x28 // CTRL_REG3 Interrupt Configuration Register
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#define CTRL_REG4 0x29 // CTRL_REG4 Interrupt Enable Register
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#define CTRL_REG5 0x2A // CTRL_REG5 Interrupt Output Pin Assignment Register
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#define OFF_P_REG 0x2B // Pressure data offset
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#define OFF_T_REG 0x2C // Temperature data offset
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#define OFF_H_REG 0x2D // Altitude data offset
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/*
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* MPL3115A2 Bit Field
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*/
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#define PTDR 0x08
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#define PDR 0x04
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#define TDR 0x02
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#define ALT 0x80
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#define RAW 0x40
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#define OS2 0x20
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#define OS1 0x10
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#define OS0 0x08
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#define RST 0x04
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#define OST 0x02
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#define SBYB 0x01
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#define OS_1 0x00
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#define OS_2 OS0
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#define OS_4 OS1
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#define OS_8 OS1 | OS0
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#define OS_16 OS2
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#define OS_32 OS2 | OS0
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#define OS_64 OS2 | OS1
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#define OS_128 OS2 | OS1 | OS0
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#define DREM 0x04
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#define PDEFE 0x02
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#define TDEFE 0x01
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/*!
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* \brief Initializes the device
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*
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* \retval status [SUCCESS, FAIL]
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*/
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uint8_t MPL3115Init( void );
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/*!
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* \brief Resets the device
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*
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* \retval status [SUCCESS, FAIL]
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*/
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uint8_t MPL3115Reset( void );
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/*!
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* \brief Reads the altitude from the MPL3115
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*
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* \retval altitude Measured altitude
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*/
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float MPL3115ReadAltitude( void );
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/*!
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* \brief Reads the Pressure from the MPL3115
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*
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* \retval pressure Measured pressure
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*/
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float MPL3115ReadPressure( void );
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/*!
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* \brief Reads the Temperature from the MPL3115
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*
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* \retval temperature Measured temperature
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*/
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float MPL3115ReadTemperature( void );
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#ifdef __cplusplus
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}
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#endif
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#endif // __MPL3115_H__
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