Mercurial > public > ostc4
annotate Common/Inc/decom.h @ 319:d8e86af78474 fix-version
bugfix: correct packed main version number in dive header
This fixes a rather mysterious bug. Users report that up to 1.3.5 beta,
a correct version number is shown in libdivecomputer based
applications (like in Subsurface, in the extra data tab). Careful
examining the code in both libdivecomputer and the firmware shows
a subtle error in the bit mask and shift operation to pack a full
X.Y.Z.beta version number in 2 bytes (as is available in the
dive header) in the firmware end (as the libdivecomputer code
looks sane, assuming this is the right way to pack things).
Likely, this bug crept in in the conversion from the closed
source Keil period into the open source GCC setup of
the code base. So its impossible to document the exact
history of this problem here.
Further notice that the main version number is only 1 of 3 version
numbers, denoting the full version of the firmware (besides Font
and RTE).
Finally notice that this way of packing is limited to 2^5 bits
(decimal 32), so we could easily build a 1.4.21, but not a
1.4.55.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
| author | Jan Mulder <jlmulder@xs4all.nl> |
|---|---|
| date | Wed, 19 Jun 2019 14:31:50 +0200 |
| parents | 239aa58b533d |
| children | 1b995079c045 |
| rev | line source |
|---|---|
| 38 | 1 /////////////////////////////////////////////////////////////////////////////// |
| 2 /// -*- coding: UTF-8 -*- | |
| 3 /// | |
| 4 /// \file Common/Inc/decom.h | |
| 5 /// \brief This code is used to calculate desat, calculated by RTE and send to Firmware | |
| 6 /// \author Heinrichs Weikamp | |
| 7 /// \date 22-Feb-2016 | |
| 8 /// | |
| 9 /// $Id$ | |
| 10 /////////////////////////////////////////////////////////////////////////////// | |
| 11 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh | |
| 12 /// | |
| 13 /// This program is free software: you can redistribute it and/or modify | |
| 14 /// it under the terms of the GNU General Public License as published by | |
| 15 /// the Free Software Foundation, either version 3 of the License, or | |
| 16 /// (at your option) any later version. | |
| 17 /// | |
| 18 /// This program is distributed in the hope that it will be useful, | |
| 19 /// but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 20 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 21 /// GNU General Public License for more details. | |
| 22 /// | |
| 23 /// You should have received a copy of the GNU General Public License | |
| 24 /// along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 25 ////////////////////////////////////////////////////////////////////////////// | |
| 26 | |
| 27 #ifndef DECOM_H | |
| 28 #define DECOM_H | |
| 29 | |
| 30 #include "data_central.h" | |
| 31 | |
| 32 # define WATER_VAPOUR_PRESSURE (0.0493f) // Schreiner 1971 | |
| 33 | |
| 34 void decom_get_inert_gases(const float ambient_pressure_bar,const SGas* pGas, float* fraction_nitrogen, float* fraction_helium ); | |
| 35 void decom_tissues_exposure(int period_in_seconds, SLifeData* pLifeData); | |
| 36 void decom_tissues_exposure2(int period_in_seconds, SGas* pActualGas, float pressure_ambient_bar, float *tissue_N2_selected_stage, float *tissue_He_selected_stage); | |
| 37 float decom_schreiner_equation(float *initial_inspired_gas_pressure, float *rate_change_insp_gas_pressure, float *interval_time_minutes, const float *gas_time_constant, float *initial_gas_pressure); | |
| 38 void decom_reset_with_1000mbar(SLifeData * pLifeData); | |
|
129
239aa58b533d
Added function to initialise structures with the actual ambient pressure
Ideenmodellierer
parents:
38
diff
changeset
|
39 void decom_reset_with_ambientmbar(float ambient, SLifeData * pLifeData); |
| 38 | 40 |
| 41 void decom_tissues_exposure_stage_schreiner(int period_in_seconds, SGas* pGas, float starting_ambient_pressure_bar, float ending_ambient_pressure_bar, | |
| 42 float* pTissue_nitrogen_bar, float* pTissue_helium_bar); | |
| 43 void decom_CreateGasChangeList(SDiveSettings* pInput, const SLifeData* lifeData); | |
| 44 uint8_t decom_tissue_test_tolerance(float* Tissue_nitrogen_bar, float* Tissue_helium_bar, float GF_value, float depth_in_bar_absolute); | |
| 45 void decom_tissues_desaturation_time(const SLifeData* pLifeData, SLifeData2* pOutput); | |
| 46 void test_decom_CreateGasChangeList(void); | |
| 47 | |
| 48 float decom_calc_ppO2(const float ambiant_pressure_bar, const SGas* pGas); | |
| 49 void decom_oxygen_calculate_otu(float* oxygen_otu, float pressure_oxygen_real); | |
| 50 void decom_oxygen_calculate_otu_degrade(float* oxygen_otu, long seconds_since_last_dive); | |
| 51 void decom_oxygen_calculate_cns_degrade(float* oxygen_cns, long seconds_since_last_dive); | |
| 52 void decom_oxygen_calculate_cns(float* oxygen_cns, float pressure_oxygen_real); | |
| 53 void decom_oxygen_calculate_cns_stage_SchreinerStyle(int period_in_seconds, SGas* pGas, float starting_ambient_pressure_bar, float ending_ambient_pressure_bar, float* oxygen_cns); | |
| 54 void decom_oxygen_calculate_cns_exposure(int period_in_seconds, SGas* pActualGas, float pressure_ambient_bar, float* oxygen_cns); | |
| 55 uint8_t decom_get_actual_deco_stop(SDiveState* pDiveState); | |
| 56 | |
| 57 // wird nur in smallCPU verwendet: | |
| 58 int decom_calc_desaturation_time(float* Tissue_nitrogen_bar, float* Tissue_helium_bar, float surface_pressure_bar); | |
| 59 | |
| 60 #endif /* DECOM_H */ | |
| 61 |