Bugfix: make max depth move with current depth (part 1) The display in dive mode of the max depth was updated before the actual depth, which looks very strange. The reason for this was conceptually simple. The depth value was averaged over a set of depth samples, but the current depth was only taken from the current sample. So, per definition, on an initial descend, the current depth is always bigger (deeper) than any average from previous shallower samples. This part 1 commit introduces a new function that is used immediate after reception of the new sample from the RTE. This function does the trivial average of a set of samples. Notice that also the surface and ambient mbar pressures are taken into account (which are used heavily over the entire code). This is a consistency thing. We should base any further calculation from the data presented in the UI, instead of presenting A, and use A' for further calculations. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef PRESSURE_H
#define PRESSURE_H

#include <stdint.h>

uint8_t init_pressure(void);
uint8_t pressure_update(void);

uint8_t is_init_pressure_done(void);

void  pressure_sensor_get_pressure_raw(void);
void  pressure_sensor_get_temperature_raw(void);
void pressure_calculation(void);

float get_temperature(void);
float get_pressure_mbar(void);
float get_surface_mbar(void);

void init_surface_ring(void);
void update_surface_pressure(uint8_t call_rhythm_seconds);

uint32_t demo_modify_temperature_and_pressure(int32_t divetime_in_seconds, uint8_t subseconds, float ceiling_mbar);

#endif /* PRESSURE_H */