annotate Discovery/Src/tCCR.c @ 330:2defc8cd93ce I2C_Improvment

Added check of configuration. In case of a problem in I2C communication the initialization of the battery gauge may have failed. To detect this a check of configuration of I2C reinitialization have been added
author ideenmodellierer
date Wed, 17 Jul 2019 22:43:16 +0200
parents 31e471d60797
children f1257a32f2d4
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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/tCCR.c
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5 /// \brief HUD data via optical port
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6 /// \author Heinrichs Weikamp gmbh
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7 /// \date 18-Dec-2014
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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 /* Includes ------------------------------------------------------------------*/
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30 #include <string.h>
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31 #include "tCCR.h"
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32 #include "ostc.h"
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33 #include "data_central.h"
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34 #include "data_exchange.h"
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35 #include "check_warning.h"
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36
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37 /* Private types -------------------------------------------------------------*/
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38 typedef struct
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39 {
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40 uint8_t hud_firmwareVersion;
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41 bit8_Type status_byte;
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42 uint16_t sensor_voltage_100uV[3];
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43 uint8_t sensor_ppo2_cbar[3];
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44 uint8_t temp1;
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45 uint16_t battery_voltage_mV;
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46 uint16_t checksum;
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47 } SIrLink;
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48
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49 #define HUD_BABBLING_IDIOT (30u) /* 30 Bytes received without break */
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50 #define HUD_RX_FRAME_LENGTH (15u) /* Length of a HUD data frame */
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51 #define HUD_RX_FRAME_BREAK_MS (100u) /* Time used to detect a gap between two byte receptions => frame start */
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52 #define HUD_RX_START_DELAY_MS (500u) /* Delay for start of RX function to avoid start of reception while a transmission is ongoing. */
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53 /* Based on an assumed cycle time by the sensor of 1 second. Started at time of last RX */
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54
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55 /* Private variables ---------------------------------------------------------*/
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56 static SIrLink receiveHUD[2];
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57 static uint8_t boolHUDdata = 0;
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58 static uint8_t data_old__lost_connection_to_HUD = 1;
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59
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60 static uint8_t receiveHUDraw[16];
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61
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62 static uint8_t StartListeningToUART_HUD = 0;
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63 static uint16_t HUDTimeoutCount = 0;
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64
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65 static __IO ITStatus UartReadyHUD = RESET;
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66 static uint32_t LastReceivedTick_HUD = 0;
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67
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68 /* Private variables with external access via get_xxx() function -------------*/
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69
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70 /* Private function prototypes -----------------------------------------------*/
272
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71 static void tCCR_fallbackToFixedSetpoint(void);
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72
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73 #ifndef USART_IR_HUD
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74
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75 void tCCR_init(void)
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76 {
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77 }
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78 void tCCR_control(void)
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79 {
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80 }
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81 void tCCR_test(void)
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82 {
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83 }
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84 void tCCR_restart(void)
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85 {
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86 }
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87 float get_ppO2Sensor_bar(uint8_t sensor_id)
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88 {
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89 }
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90 float get_sensorVoltage_mV(uint8_t sensor_id)
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91 {
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92 }
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93 float get_HUD_battery_voltage_V(void)
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94 {
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95 }
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96 void tCCR_tick(void)
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97 {
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98 }
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99
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100 #else
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101 /* Exported functions --------------------------------------------------------*/
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102
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103 float get_ppO2Sensor_bar(uint8_t sensor_id)
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104 {
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105 if((sensor_id > 2) || data_old__lost_connection_to_HUD)
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106 return 0;
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107
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108 return (float)(receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id]) / 100.0f;
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109 }
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110
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111 float get_sensorVoltage_mV(uint8_t sensor_id)
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112 {
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113 if((sensor_id > 2) || data_old__lost_connection_to_HUD)
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114 return 0;
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115
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116 return (float)(receiveHUD[boolHUDdata].sensor_voltage_100uV[sensor_id]) / 10.0f;
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117 }
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118
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119 float get_HUD_battery_voltage_V(void)
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120 {
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121 if(data_old__lost_connection_to_HUD)
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122 return 0;
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123
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124 return (float)(receiveHUD[boolHUDdata].battery_voltage_mV) / 1000.0f;
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125 }
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126
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127
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128 void test_HUD_sensor_values_outOfBounds(int8_t * outOfBouds1, int8_t * outOfBouds2, int8_t * outOfBouds3)
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129 {
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130 uint8_t sensorNotActiveBinary;
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131 uint8_t sensorActive[3];
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132
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133 // test1: user deactivation
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134 sensorNotActiveBinary = stateUsed->diveSettings.ppo2sensors_deactivated;
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135
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136 for(int i=0;i<3;i++)
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137 sensorActive[i] = 1;
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138
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139 if(sensorNotActiveBinary)
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140 {
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141 if(sensorNotActiveBinary & 1)
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142 sensorActive[0] = 0;
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143
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144 if(sensorNotActiveBinary & 2)
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145 sensorActive[1] = 0;
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146
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147 if(sensorNotActiveBinary & 4)
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148 sensorActive[2] = 0;
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149 }
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150
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151 // test2: mV of remaining sensors
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152 for(int i=0;i<3;i++)
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153 {
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154 if(sensorActive[i])
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155 {
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156 if( (receiveHUD[boolHUDdata].sensor_voltage_100uV[i] < 80) ||
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157 (receiveHUD[boolHUDdata].sensor_voltage_100uV[i] > 2500))
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158 {
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159 sensorActive[i] = 0;
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160 switch(i)
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161 {
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162 case 0:
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163 sensorNotActiveBinary |= 1;
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164 break;
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165 case 1:
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166 sensorNotActiveBinary |= 2;
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167 break;
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168 case 2:
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169 sensorNotActiveBinary |= 4;
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170 break;
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171 }
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172 }
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173 }
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174 }
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175
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176 *outOfBouds1 = 0;
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177 *outOfBouds2 = 0;
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178 *outOfBouds3 = 0;
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179
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180 /* with two, one or no sensor, there is nothing to compare anymore
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181 */
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182 if(sensorNotActiveBinary)
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183 {
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184 // set outOfBounds for both tests
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185 if(!sensorActive[0])
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186 *outOfBouds1 = 1;
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187
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188 if(!sensorActive[1])
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189 *outOfBouds2 = 1;
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190
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191 if(!sensorActive[2])
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192 *outOfBouds3 = 1;
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193
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194 return;
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195 }
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196 else
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197 {
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198 uint8_t sensor_id_ordered[3];
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199 uint8_t difference[2];
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200
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201 if((receiveHUD[boolHUDdata].sensor_ppo2_cbar[1]) > (receiveHUD[boolHUDdata].sensor_ppo2_cbar[0]))
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202 {
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203 sensor_id_ordered[0] = 0;
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204 sensor_id_ordered[1] = 1;
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205 }
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206 else
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207 {
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208 sensor_id_ordered[0] = 1;
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209 sensor_id_ordered[1] = 0;
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210 }
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211 if(receiveHUD[boolHUDdata].sensor_ppo2_cbar[2] > receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id_ordered[1]])
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212 {
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213 sensor_id_ordered[2] = 2;
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214 }
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215 else
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216 {
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217 sensor_id_ordered[2] = sensor_id_ordered[1];
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218 if(receiveHUD[boolHUDdata].sensor_ppo2_cbar[2] > receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id_ordered[0]])
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219 {
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220 sensor_id_ordered[1] = 2;
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221 }
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222 else
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223 {
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224 sensor_id_ordered[1] = sensor_id_ordered[0];
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225 sensor_id_ordered[0] = 2;
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226 }
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227 }
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228
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229 difference[0] = receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id_ordered[1]]- receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id_ordered[0]];
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230 difference[1] = receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id_ordered[2]]- receiveHUD[boolHUDdata].sensor_ppo2_cbar[sensor_id_ordered[1]];
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231
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232 if((difference[0] > difference[1]) && (difference[0] > 15))
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233 {
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234 switch(sensor_id_ordered[0])
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235 {
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236 case 0:
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237 *outOfBouds1 = 1;
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238 break;
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239 case 1:
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240 *outOfBouds2 = 1;
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241 break;
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242 case 2:
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243 *outOfBouds3 = 1;
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244 break;
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245 }
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246 }
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247 else
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248 if((difference[0] < difference[1]) && (difference[1] > 15))
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249 {
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250 switch(sensor_id_ordered[2])
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251 {
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252 case 0:
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253 *outOfBouds1 = 1;
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254 break;
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255 case 1:
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256 *outOfBouds2 = 1;
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257 break;
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258 case 2:
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259 *outOfBouds3 = 1;
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260 break;
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261 }
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262 }
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263 }
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264 }
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265
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266
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267 uint8_t get_ppO2SensorWeightedResult_cbar(void)
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268 {
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269 int8_t sensorOutOfBound[3];
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270 uint16_t result = 0;
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271 uint8_t count = 0;
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272
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273 test_HUD_sensor_values_outOfBounds(&sensorOutOfBound[0], &sensorOutOfBound[1], &sensorOutOfBound[2]);
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274
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275 for(int i=0;i<3;i++)
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276 {
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277 if(!sensorOutOfBound[i])
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278 {
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279 result += receiveHUD[boolHUDdata].sensor_ppo2_cbar[i];
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280 count++;
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281 }
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282 }
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283 if(count == 0) // all sensors out of bounds!
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284 return 0;
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285 else
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286 return (uint8_t)(result / count);
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287 }
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288
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289
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290 void tCCR_init(void)
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291 {
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292 StartListeningToUART_HUD = 1;
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293 }
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294
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295
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296 /* after 3 seconds without update from HUD
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297 * data is considered old
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298 */
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299 void tCCR_tick(void)
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300 {
322
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301 if(HUDTimeoutCount < 3 * 10)
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302 HUDTimeoutCount++;
38
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303 else
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304 {
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305 data_old__lost_connection_to_HUD = 1;
322
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306 if(HUDTimeoutCount < 20 * 10)
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307 HUDTimeoutCount++;
38
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308 else
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309 tCCR_fallbackToFixedSetpoint();
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310 }
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311 }
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312
322
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313 void tCCR_SetRXIndication(void)
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314 {
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315 static uint8_t floatingRXCount = 0;
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316
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317 if((UartIR_HUD_Handle.RxXferSize == HUD_RX_FRAME_LENGTH) || (UartIR_HUD_Handle.RxXferSize == HUD_RX_FRAME_LENGTH - 1)) /* we expected a complete frame */
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318 {
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319 UartReadyHUD = SET;
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320 LastReceivedTick_HUD = HAL_GetTick();
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321 floatingRXCount = 0;
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322 }
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323 else /* follow up of error handling */
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324 {
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325 if(time_elapsed_ms(LastReceivedTick_HUD, HAL_GetTick()) > HUD_RX_FRAME_BREAK_MS) /* Reception took a while => frame start detected */
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326 {
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327 HAL_UART_Receive_IT(&UartIR_HUD_Handle, &receiveHUDraw[1], 14); /* We have already the first byte => get the missing 14 */
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328 }
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329 else
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330 {
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331 if(floatingRXCount++ < HUD_BABBLING_IDIOT)
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332 {
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333 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, 1); /* Start polling of incoming bytes */
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334 }
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335 else /* Significant amount of data comming in without break => disable input */
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336 { /* by not reactivation HUD RX, no recovery fromthis state */
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337 stateUsedWrite->diveSettings.ppo2sensors_deactivated = 0x07; /* Display deactivation */
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338 }
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339 }
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340 }
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341
31e471d60797 Added start of frame detection for HUD data
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342 }
38
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343
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344 void tCCR_restart(void)
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345 {
322
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346 HAL_UART_AbortReceive_IT(&UartIR_HUD_Handle); /* Called by the error handler. RX will be restarted by control function */
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347 StartListeningToUART_HUD = 1;
38
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348 }
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349
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350
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351 void tCCR_control(void)
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352 {
322
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diff changeset
353
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354 if((UartReadyHUD == RESET) && StartListeningToUART_HUD && (time_elapsed_ms(LastReceivedTick_HUD, HAL_GetTick()) > HUD_RX_START_DELAY_MS))
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355 {
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356 StartListeningToUART_HUD = 0;
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357 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, HUD_RX_FRAME_LENGTH);
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358 }
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359
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360 if(UartReadyHUD == SET)
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361 {
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362 UartReadyHUD = RESET;
322
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diff changeset
363 StartListeningToUART_HUD = 1;
38
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364
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365 memcpy(&receiveHUD[!boolHUDdata], receiveHUDraw, 11);
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366 receiveHUD[!boolHUDdata].battery_voltage_mV = receiveHUDraw[11] + (256 * receiveHUDraw[12]);
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367 receiveHUD[!boolHUDdata].checksum = receiveHUDraw[13] + (256 * receiveHUDraw[14]);
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368
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369 uint16_t checksum = 0;
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370
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371 for(int i=0;i<13;i++)
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372 {
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373 checksum += receiveHUDraw[i];
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374 }
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375 if(checksum == receiveHUD[!boolHUDdata].checksum)
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376 {
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377 boolHUDdata = !boolHUDdata;
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378 HUDTimeoutCount = 0;
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379 data_old__lost_connection_to_HUD = 0;
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380 }
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381 else
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382 {
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383 if(data_old__lost_connection_to_HUD) /* we lost connection, maybe due to RX shift => start single byte read to resynchronize */
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384 {
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385 HAL_UART_Receive_IT(&UartIR_HUD_Handle, receiveHUDraw, 1);
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386 StartListeningToUART_HUD = 0;
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387 }
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388 }
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389 memset(receiveHUDraw,0,sizeof(receiveHUDraw));
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390 }
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391 }
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392
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393 #endif
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394 /* Private functions ---------------------------------------------------------*/
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395
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396 static void tCCR_fallbackToFixedSetpoint(void)
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397 {
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398 if((stateUsed->mode == MODE_DIVE) && (stateUsed->diveSettings.diveMode == DIVEMODE_CCR) && (stateUsed->diveSettings.CCR_Mode == CCRMODE_Sensors) && (stateUsed->diveSettings.fallbackOption))
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399 {
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400 uint8_t setpointCbar, actualGasID;
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401
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402 setpointCbar = stateUsed->diveSettings.setpoint[1].setpoint_cbar;
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403 stateUsedWrite->diveSettings.CCR_Mode = CCRMODE_FixedSetpoint;
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404
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405 actualGasID = stateUsed->lifeData.actualGas.GasIdInSettings;
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406 setActualGas_DM(&stateUsedWrite->lifeData,actualGasID,setpointCbar);
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407
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408 set_warning_fallback();
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409 }
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410 }