src/lib/Baro/baro_base.h

   1 #pragma once
   2
   3 #include <stdint.h>
   4 #include <stddef.h>
   5
   6 class BaroBase
   7 {
   8 public:
   9     static const int32_t ALTITUDE_INVALID = 0x7fffffff;
  10     static const int32_t TEMPERATURE_INVALID = 0x7fffffff;
  11     static const uint32_t PRESSURE_INVALID = 0xffffffff;
  12
  13     BaroBase() : m_initialized(false), m_altitudeHome(ALTITUDE_INVALID) {}
  14
  15     virtual void initialize() = 0;
  16     // Return expected duration of pressure measurement (ms)
  17     virtual uint8_t getPressureDuration() = 0;
  18     // Start reading pressure
  19     virtual void startPressure() = 0;
  20     // Get pressure result (deci-Pascals)
  21     virtual uint32_t getPressure() = 0;
  22     // Return expected duration of temperature measurement (ms)
  23     virtual uint8_t getTemperatureDuration() = 0;
  24     // Start reading temperature
  25     virtual void startTemperature() = 0;
  26     // Get temperature result (centiDegrees)
  27     virtual int32_t getTemperature() = 0;
  28
  29     // Base functions
  30     bool isInitialized() const { return m_initialized; }
  31     int32_t pressureToAltitude(uint32_t pressurePa);
  32     // Properties
  33     int32_t getAltitudeHome() const { return m_altitudeHome; }
  34     void setAltitudeHome(int32_t altitudeHome) { m_altitudeHome = altitudeHome; }
  35 protected:
  36     bool m_initialized;
  37     int32_t m_altitudeHome;
  38 };
  39
  40 class BaroI2CBase : public BaroBase
  41 {
  42 protected:
  43     static uint8_t m_address;
  44     static void readRegister(uint8_t reg, uint8_t *data, size_t size);
  45     static void writeRegister(uint8_t reg, uint8_t *data, size_t size);
  46 };