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