view Small_CPU/Inc/vpm.h @ 238:a9d798e8c11f div-fixes-5

cleanup, bugfix: do not mask I2C_SystemStatus with local variable This commit is partly cleanup, and partly possible bugfix. Masking the global I2C_SystemStatus with a local variable is (very) bad practice, but more importantly, dangerous, as other code uses this I2C_SystemStatus to base decisions on. So, this is definitely non-trivial, as it can possibly change the flow of control. This said, its tested and seems to have no negative effects (but also no positive, as I sort of hoped for), so that is why I mark it cleanup as well. Constructs like this shall be heavily documented in the code, when there is a reason to do things like this. Further, remove a 2nd rather useless construct. There is no reason to & 0x03 the output of I2C_SystemStatus. This is the only location in the entire code base where this is done, so, its not only useless but also inconsistent and confusing the true intentions here. Finally, littered to code with todo's that I will take care of in next commits. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Mon, 08 Apr 2019 10:16:17 +0200
parents 5f11787b4f42
children
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/*
 * vpm.h
 *
 * Created: 23.04.2013 11:38:19
 *  Author: produktion04
 */


#ifndef VPM_H
#define VPM_H

#include "data_central.h"
extern long vpm_time_calc_begin;
enum DECOLIST{DECOSTOPS,FUTURESTOPS,BAILOUTSTOPS,NULLZEIT,OFF = -1}; // order is important!!
enum VPM_CALC_STATUS{CALC_END, CALC_BEGIN, CALC_CRITICAL, CALC_FINAL_DECO, CALC_NULLZEIT };
//int calc_crushing_pressure(float *starting_depth, float *ending_depth, float *rate);
//void vpm_check_calc(unsigned short* stoplist);
//void vpm_init(void);
//_Bool vpm_crush(void);

void vpm_reset_variables(void);
_Bool vpm_build_variables_from_file(unsigned long in_sdram_start);
int vpm_store_variables_in_sdram_for_transfer(unsigned long in_sdram_start);
void vpm_calc_crushing_pressure(float starting_ambient_pressure, float ending_ambient_pressure, float rate);
void vpm_deco_plan(unsigned short divetime,unsigned short * divetime_first_stop, float* first_stop_depth);

float schreiner_equation__2(float *initial_inspired_gas_pressure,float *rate_change_insp_gas_pressure,float *interval_time_minutes,  const float *gas_time_constant,float *initial_gas_pressure);

int  vpm_calc(SLifeData* pINPUT, SVpm* pVPM, SDecoinfo*  pDECOINFO);
void  vpm_saturation_after_ascent(SLifeData* input);
extern  const float helium_time_constant[16];
extern  const float nitrogen_time_constant[16];

#endif /* VPM_H */