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annotate Discovery/Src/timer.c @ 866:3a1c533f3840
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| author | heinrichsweikamp |
|---|---|
| date | Mon, 22 Jul 2024 16:40:14 +0200 |
| parents | 9660df857c57 |
| children |
| rev | line source |
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| 38 | 1 /////////////////////////////////////////////////////////////////////////////// |
| 2 /// -*- coding: UTF-8 -*- | |
| 3 /// | |
| 4 /// \file Discovery/Src/timer.c | |
| 5 /// \brief Contains timer related functionality like stopwatch and security stop | |
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6 /// \author heinrichs weikamp gmbh |
| 38 | 7 /// \date 5. Feb.2015 (maybe) |
| 8 /// | |
| 9 /// \details | |
| 10 /// | |
| 11 /// $Id$ | |
| 12 /////////////////////////////////////////////////////////////////////////////// | |
| 13 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh | |
| 14 /// | |
| 15 /// This program is free software: you can redistribute it and/or modify | |
| 16 /// it under the terms of the GNU General Public License as published by | |
| 17 /// the Free Software Foundation, either version 3 of the License, or | |
| 18 /// (at your option) any later version. | |
| 19 /// | |
| 20 /// This program is distributed in the hope that it will be useful, | |
| 21 /// but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 22 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 23 /// GNU General Public License for more details. | |
| 24 /// | |
| 25 /// You should have received a copy of the GNU General Public License | |
| 26 /// along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 27 ////////////////////////////////////////////////////////////////////////////// | |
| 28 | |
| 29 #include "data_central.h" | |
| 30 | |
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31 static _Bool bStopWatch = false; |
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32 static float stopWatchAverageDepth_Meter = 0.0f; |
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33 static long safetyStopCountDown_Second = 0; |
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34 static long stopWatchOffset = 0; |
| 38 | 35 |
| 36 void timer_init(void) | |
| 37 { | |
| 38 stopWatchAverageDepth_Meter = 0.0f; | |
| 39 bStopWatch = true; | |
| 40 safetyStopCountDown_Second = 0; | |
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41 stopWatchOffset = 0; |
| 38 | 42 } |
| 43 | |
| 44 void timer_UpdateSecond(_Bool checkOncePerSecond) | |
| 45 { | |
| 46 static int last_second = -1; | |
| 47 static _Bool bSafetyStop = false; | |
| 48 static float last_depth_meter = 0; | |
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49 static uint8_t safetyStopResetCnt = 0; |
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50 static uint16_t safetyStopRestartCnt = 0; |
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51 long stopWatchTime_Second = 0; |
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52 |
| 38 | 53 if(checkOncePerSecond) |
| 54 { | |
| 55 int now = current_second(); | |
| 56 if( last_second == now) | |
| 57 return; | |
| 58 last_second = now; | |
| 59 } | |
| 60 | |
| 61 /** Stopwatch **/ | |
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62 stopWatchTime_Second = stateUsed->lifeData.dive_time_seconds_without_surface_time - stopWatchOffset; |
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63 if(bStopWatch && !is_ambient_pressure_close_to_surface(&stateUsedWrite->lifeData)) |
| 38 | 64 { |
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65 if(stopWatchTime_Second == 0) |
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66 stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter; |
| 38 | 67 else |
| 68 stopWatchAverageDepth_Meter = (stopWatchAverageDepth_Meter * stopWatchTime_Second + stateUsed->lifeData.depth_meter)/ (stopWatchTime_Second + 1); | |
| 69 } | |
| 70 | |
| 71 /** SafetyStop **/ | |
| 72 float depthToStopSafetyStopCount; | |
| 73 if(settingsGetPointer()->safetystopDuration && (stateUsed->lifeData.max_depth_meter > 10.0f) && (stateUsed->lifeData.dive_time_seconds > 60)) | |
| 74 { | |
| 75 | |
| 76 //No deco when 10 meters are crossed from below => Activate SecurityStop | |
| 77 if( last_depth_meter > 10.0f && stateUsed->lifeData.depth_meter <= 10.0f) | |
| 78 { | |
| 79 if(stateUsed->diveSettings.deco_type.ub.standard == GF_MODE) | |
| 80 { | |
| 81 if(stateUsed->decolistBuehlmann.output_ndl_seconds > 0) | |
| 82 bSafetyStop = true; | |
| 83 } | |
| 84 else | |
| 85 { | |
| 86 if(stateUsed->decolistVPM.output_ndl_seconds > 0) | |
| 87 bSafetyStop = true; | |
| 88 } | |
| 89 } | |
| 90 | |
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91 /* Has the diver left safety stop depth (descend)? => need to restart safety stop timer? */ |
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92 if(safetyStopCountDown_Second != 0) |
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93 { |
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94 if(stateUsed->lifeData.depth_meter >= (settingsGetPointer()->safetystopDepth + 2.0)) |
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95 { |
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96 safetyStopRestartCnt = safetyStopCountDown_Second; |
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97 safetyStopCountDown_Second = 0; |
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98 safetyStopResetCnt = 60; /* restart safety stop from scratch if depth is left for more than one minute */ |
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99 } |
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100 } |
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101 else if(safetyStopResetCnt) |
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102 { |
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103 safetyStopResetCnt--; |
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104 if(safetyStopResetCnt == 0) |
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105 { |
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106 safetyStopRestartCnt = 0; |
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107 } |
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108 } |
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109 |
| 38 | 110 //Countdown starts at 5 meters |
| 111 if(bSafetyStop && (stateUsed->lifeData.depth_meter - 0.0001f <= (settingsGetPointer()->safetystopDepth) )) | |
| 112 { | |
| 113 if(safetyStopCountDown_Second == 0) | |
| 114 { | |
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115 if(safetyStopRestartCnt) /* just a short interrupt of the safetystop => continue using old count */ |
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116 { |
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117 safetyStopCountDown_Second = safetyStopRestartCnt; |
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118 safetyStopRestartCnt = 0; |
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119 } |
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120 else /* setup safety stop duration */ |
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121 { |
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122 safetyStopCountDown_Second = (settingsGetPointer()->safetystopDuration) * 60; |
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123 } |
| 38 | 124 } |
| 125 else | |
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126 { |
| 38 | 127 safetyStopCountDown_Second--; |
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128 } |
| 38 | 129 } |
| 130 | |
| 131 // after safetystopDuration minutes or below 3 (2) meter safetyStop is disabled | |
| 132 if(settingsGetPointer()->safetystopDepth == 3) | |
| 133 depthToStopSafetyStopCount = 1.999f; // instead of 2 | |
| 134 else | |
| 135 depthToStopSafetyStopCount = 2.999f;// instead of 3 | |
| 136 | |
| 137 if((safetyStopCountDown_Second == 1) || (stateUsed->lifeData.depth_meter <= depthToStopSafetyStopCount)) | |
| 138 { | |
| 139 bSafetyStop = false; | |
| 140 safetyStopCountDown_Second = 0; | |
| 141 } | |
| 142 } | |
| 143 else | |
| 144 { | |
| 145 bSafetyStop = false; | |
| 146 safetyStopCountDown_Second = 0; | |
| 147 } | |
| 148 last_depth_meter = stateUsed->lifeData.depth_meter; | |
| 149 } | |
| 150 | |
| 151 | |
| 152 void timer_Stopwatch_Restart(void) | |
| 153 { | |
| 154 stopWatchAverageDepth_Meter = stateUsed->lifeData.depth_meter; | |
| 155 bStopWatch = true; | |
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156 stopWatchOffset = stateUsed->lifeData.dive_time_seconds_without_surface_time; |
| 38 | 157 } |
| 158 | |
| 159 void timer_Stopwatch_Stop(void) | |
| 160 { | |
| 161 bStopWatch = false; | |
| 162 } | |
| 163 | |
| 164 long timer_Stopwatch_GetTime(void) | |
| 165 { | |
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166 return stateUsed->lifeData.dive_time_seconds_without_surface_time - stopWatchOffset; |
| 38 | 167 } |
| 168 | |
| 169 float timer_Stopwatch_GetAvarageDepth_Meter(void) | |
| 170 { | |
| 171 return stopWatchAverageDepth_Meter; | |
| 172 } | |
| 173 | |
| 174 long timer_Safetystop_GetCountDown(void) | |
| 175 { | |
| 176 return safetyStopCountDown_Second; | |
| 177 } | |
| 178 | |
| 179 uint8_t timer_Safetystop_GetDepthUpperLimit(void) | |
| 180 { | |
| 181 if(settingsGetPointer()->safetystopDepth == 3) | |
| 182 return 2; | |
| 183 else | |
| 184 return 3; | |
| 185 } | |
| 186 |