--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Discovery/Inc/vpm.h	Sat Apr 28 11:52:34 2018 +0200
@@ -0,0 +1,57 @@
+///////////////////////////////////////////////////////////////////////////////
+/// -*- coding: UTF-8 -*-
+///
+/// \file   Discovery/Inc/vpm.h
+/// \brief  Varying Permeability Model (VPM) Decompression Program
+/// \author Heinrichs Weikamp
+/// \date   23.04.2013
+///
+/// $Id$
+///////////////////////////////////////////////////////////////////////////////
+/// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
+///
+///     This program is free software: you can redistribute it and/or modify
+///     it under the terms of the GNU General Public License as published by
+///     the Free Software Foundation, either version 3 of the License, or
+///     (at your option) any later version.
+///
+///     This program is distributed in the hope that it will be useful,
+///     but WITHOUT ANY WARRANTY; without even the implied warranty of
+///     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+///     GNU General Public License for more details.
+///
+///     You should have received a copy of the GNU General Public License
+///     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef VPM_H
+#define VPM_H
+
+#include "buehlmann.h"
+#include "data_central.h"
+
+extern long vpm_time_calc_begin;
+enum DECOLIST{DECOSTOPS,FUTURESTOPS,BAILOUTSTOPS, 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, SDiveSettings* diveSettings, SVpm* pVPM, SDecoinfo*  pDECOINFO, int calc_what);
+void  vpm_saturation_after_ascent(SLifeData* input);
+extern  const float helium_time_constant[16];
+extern  const float nitrogen_time_constant[16];
+
+float vpm_get_CNS(void);
+
+
+#endif /* VPM_H */